An expandable fastener of adjustable length
By designing an adjustable-length expansion fastener and utilizing a combination of a first screw and a second screw, the problem of traditional expansion fasteners being unable to adapt to different thicknesses is solved, achieving a stable connection on structures of different thicknesses and improving the aesthetics and safety of the installation.
CN224364205UActive Publication Date: 2026-06-16DONGTAI CITY HUAWEI STANDARD COMPONENT CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGTAI CITY HUAWEI STANDARD COMPONENT CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-16
AI Technical Summary
Technical Problem
Traditional fixed-length expansion fasteners cannot flexibly adapt to different mounting base thicknesses, affecting aesthetics and safety.
Method used
An adjustable-length expansion fastener was designed. By combining a first screw and a second screw, the upper and lower separation and synchronous rotation of the screw are achieved using a limiting rod and a mating hole. Combined with an adjustment component and a spreading disc, the length of the screw can be adjusted.
Benefits of technology
This enables the expansion fasteners to be applicable to structures of different thicknesses, improving the aesthetics and safety of installation.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224364205U_ABST
Abstract
The utility model provides a kind of adjustable length's expansion fastener.The adjustable length's expansion fastener includes: push force sleeve;Positioning structure, the positioning structure is installed in the inside of push force sleeve and is located at top position, the outer surface of push force sleeve is located at bottom position and is equipped with multiple openings, the inner surface of the positioning structure is screw-threaded and connected with first screw rod, the bottom end of the first screw rod is equipped with one through adjusting screw hole, the inside of the adjusting screw hole is screw-threaded and connected with adjusting assembly, the outer surface of the adjusting assembly is close to lower half and is screw-threaded and connected with second screw rod by adjusting screw hole, the bottom end of the first screw rod is fixedly connected with two limit rods, the top end of the second screw rod is equipped with two butt joint holes.The adjustable length's expansion fastener provided by the utility model can quickly adjust the length of screw rod in expansion according to requirements, so that it is suitable for structures of different thicknesses, and the applicability is increased.
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