Gypsum Plasterboard Dowel With Breakaway Drill Insert
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gypsum plasterboard anchors face limitations in drilling through plasterboards without melting due to frictional heat and in providing a stable fastening mechanism that allows screws to extend beyond the anchor body.
Innovation Solution
A plasterboard anchor with a plastic plug body and a drilling insert made from heat-resistant materials, featuring a self-tapping thread and an axial screw hole, where the drill bit is rotationally and axially fixed and has a predetermined separation point to allow the screw to exit the anchor body, enabling secure fastening and expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plastic plug body is used for the anchor, then ease of manufacture and cost are improved, but drilling resistance and heat resistance deteriorate due to material melting from frictional heat
Solution Approach 1:
The invention combines a plastic plug body with a separate drilling insert made of heat-resistant material. The drilling insert is inserted into the plug body in a rotationally and axially fixed manner, creating a composite structure that leverages the manufacturing advantages of plastic while adding the drilling resistance and heat resistance of specialized materials.
2Reliability
If the drill bit is made of heat-resistant material, then drilling resistance is improved, but the material availability and cost increase
Solution Approach 1:
Instead of making the entire anchor body from heat-resistant material, the invention applies the heat-resistant drilling insert only where it is specifically needed - at the front portion that contacts the plasterboard during drilling. The majority of the anchor body can remain as inexpensive plastic, optimizing material usage and cost while maintaining drilling performance.
3Ease of operation
If the screw hole passes through the dowel body within the thread, then screw fastening is improved, but structural integrity and torque resistance deteriorate
Solution Approach 1:
The drilling insert acts as an intermediary element that bridges the screw thread and the front end of the anchor body. When the screw is tightened, the drilling insert transmits and distributes the mechanical stress, allowing the screw to effectively engage the plasterboard while the insert itself absorbs and disperses the torque loads, preventing stress concentration that would compromise structural integrity.
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 allows for effective drilling into plasterboards without material melting and provides a stable fastening mechanism that enables screws to extend beyond the anchor body, enhancing the anchor's holding capacity and torque resistance.
Implementation Method 1
which material does not melt due to frictional heat when drilling through a gypsum board
Implementation Method 2
a self-tapping thread extending axially along a longitudinal axis of the plasterboard anchor for screwing the anchor body into plasterboard
Implementation Method 3
enhancing the anchor's holding capacity and torque resistance
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to a gypsum plasterboard dowel (1) comprising a dowel body (2) made of plastic and a bore insert (3) which is rotationally and axially fixed to the dowel body (2) and protrudes forward axially from the dowel body (2). According to the invention, the bore insert (3) has a target separation point (17) for separating or displacing a front bore insert (3) part (10), which protrudes forward out of the front end (5) of the dowel body (2), by screwing a screw (21) into the screw hole (6) of the dowel body (2), and a rear bore insert (3) part (15) which is received in the front section (16) of the dowel body (2) remains in the front section (16) of the dowel body (2) as a counter bearing (22) for a thread of the screw (21) screwed into the screw hole (6) after the screw (21) is screwed in.