Unlock instant, AI-driven research and patent intelligence for your innovation.

Fastener

A technology of fasteners and expansion parts, applied in the field of fasteners with expansion sleeves, which can solve the problems of uncertainty, blocking the main body of anchors, etc.

Inactive Publication Date: 2019-07-09
HILTI AG
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, when the anchor is installed, since the tapered portion is partially covered by the expansion sleeve in the longitudinal direction, when the anchor is pulled outward due to seismic conditions or cracks in the target structure, the lower edge of the expansion sleeve and the cone Contact between the side surfaces of the shaped portion, or friction between the hole wall and the uncovered tapered portion of the anchor body, may prevent the anchor body from sliding backwards relative to the expansion sleeve
Therefore, there is uncertainty as to whether a permanent outward expansion obtained by a smooth relative sliding between the anchor body and the expansion sleeve can be achieved, which poses a safety risk

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fastener
  • Fastener
  • Fastener

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The following detailed description, set forth in conjunction with the accompanying drawings, is intended as a description of presently preferred embodiments of the invention and is not intended to represent the only forms in which the invention may be practiced. It is to be understood that the same or equivalent functions may be achieved by different embodiments to be encompassed within the spirit and scope of the present invention. In the drawings, the same reference numerals are used throughout to denote the same elements. Furthermore, the term "comprising" or any other variation thereof is used to encompass a non-exclusive inclusion, such that a module, circuit, device component, structure, and method step comprising a series of elements or steps does not only include those elements but may include an unclear other elements or steps listed explicitly or inherent in such modules, circuits, device components or steps. An element or step preceded by "comprising a" does...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A fastener includes a body having a tubular portion and a split portion extending from the lower end of the tubular portion, and longitudinally includes a tapered section tapering in a direction toward the tubular portion. The fastener also includes an expansion sleeve annularly surrounding the split portion, wherein the expansion sleeve extends longitudinally to the lower end of the tapered section.

Description

technical field [0001] The present invention relates to fasteners, and more particularly, to fasteners having expansion sleeves. Background technique [0002] Fasteners such as drop-in anchors are often used to suspend objects such as pipes from target structures such as walls or ceilings. Forced-in anchors have the advantage over other anchors of ease of installation and providing a flat surface on the target structure after installation. Conventional forced-in anchors generally have a tubular body with a threaded hole formed in an upper portion thereof. The lower portion of the forced anchor is split into two or more segments annularly surrounding the longitudinal axis of the forced fastener. The forced anchor is set into the target structure by pressing the forced anchor into a pre-formed hole in the target structure, wherein the inner diameter of the hole is substantially the same as the outer diameter of the tubular body, and removing the plug from the A threaded hol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/06
CPCF16B13/068F16B13/126F16B13/063
Inventor 褚小龙林成廖艺翔黄小健刘曼
Owner HILTI AG