Ceiling Anchor Bolt Assembly for Concealed Fast Panel Fixing
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Solution Overview
Problem
Existing ceiling finishing panel fixing devices face challenges such as difficulty in separating panels for repair, aesthetically unpleasing exposed screw bolts, and time-consuming installation processes, with risks of anchor bolts falling due to vibration and bending under wind pressure.
Innovation Solution
An improved anchor bolt assembly with triangular pyramid-shaped protrusions to prevent spinning, a double screw thread for reduced installation time, incised parts for strong wall fixation, and a magnet-covered screw bolt for concealed installation, along with a reinforcing pipe and cushioning material to prevent bending and vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional strong anchor with expansion piece is used, then the anchor can be fixed to the ceiling slab, but the expansion piece scratches the inner wall and the anchor may fall out by vibration
Solution Approach 1:
The anchor body is divided into multiple wedge-shaped segments that can independently expand and interlock with the wall, distributing the expansion force and preventing concentrated scratching while maintaining secure fixation
Solution Approach 2:
The wedge-shaped segments have asymmetric geometry with inclined surfaces that convert axial compression into radial expansion, creating a mechanical interlock that prevents both wall scratching and anchor detachment under vibration
2Strength
If a full-threaded bolt is used, then the anchor can be tightened, but the bolt may bend by vibration or wind pressure when long
Solution Approach 1:
The threaded structure is segmented into distinct zones with different thread pitches and profiles, allowing the upper portion to provide tightening while the lower portion maintains structural rigidity and resists bending
Solution Approach 2:
Different sections of the bolt have locally optimized properties - the upper section has finer threads for tightening while the lower section has coarser threads and increased diameter for vibration resistance
3Reliability
If a conventional anchor assembly is installed, then the finishing panel can be fixed, but the installation process is time-consuming requiring disassembly and reassembly
Solution Approach 1:
Multiple functional components (anchor body, expansion mechanism, and fixation elements) are merged into a single pre-assembled unit that can be directly installed without disassembly or reassembly steps
Solution Approach 2:
The anchor assembly is pre-configured with all necessary components in their final positions during manufacturing, eliminating the need for field assembly and reducing installation time
4Strength
If screw bolts are exposed for panel fixation, then the panels can be securely attached, but the exposed bolts are aesthetically unpleasing
Solution Approach 1:
A decorative cover element is introduced as an intermediary component that conceals the functional screw bolts while allowing them to perform their attachment function, resolving the conflict between structural requirement and aesthetic appearance
Data Source
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AI summary
An anchor bolt assembly and a ceiling finishing panel fixing device including the same are proposed, including: an anchor body (610) provided with a plurality of pointed protrusions (612a) on an upper surface thereof; an anchor shell (620) provided with open upper and lower sides thereof, extrapolated to a lower side of the anchor body (610), provided with a first incised part (622a) having a "Y" shape at an equal interval along a circumference of the anchor shell (620), and provided with a second incised part (622b) having a "v" shape at an equal interval along a longitudinal direction of the first incised part; a tightening member (630) screwed to the anchor body (610) through a screw thread provided on an inner circumferential surface of the tightening member (630), and provided with a processing part (632) for increasing frictional force along an upper circumference of the tightening member (630).