Detachable depth anchor expansion bolt

Abstract

The invention discloses a detachable deep anchor expansion bolt, which belongs to the field of expansion bolt products and provides a detachable deep anchor expansion bolt which can realize the disassembly of the deep anchor expansion bolt, which includes a bolt and a bolt sheathed on the bolt expansion sleeve, the bolt includes a large-diameter section and a small-diameter section from its installation end to the large-end end, the expansion sleeve is sleeved on the small-diameter section, and a first protrusion is provided at the end of the expansion sleeve facing the large-diameter section. A platform is provided with a second boss at the end of the large-diameter section towards the small-diameter section; a spring tongue is provided on the expansion sleeve, and a thrust structure capable of thrust-fitting with the spring tongue is provided on the bolt; In the initial state of the detachable depth anchoring expansion bolt, the elastic tongue is located between the thrust structure and the big end. When disassembling, the present invention only needs to take off the corresponding nut and the installed part, rotate the bolt at a certain angle, and then directly pull out the bolt together with the expansion sleeve through the thrust fitting structure.

Description

technical field [0001] The invention relates to the field of expansion bolt products, in particular to a detachable deep anchoring expansion bolt. Background technique [0002] Expansion bolts are widely used in building construction, equipment fixing, home decoration and other industries. as attached Figure 8 As shown in , conventional expansion bolts are generally composed of bolts, expansion sleeves, washers and nuts. The installation and construction are very convenient. You only need to use an electric drill to drill holes on the surface of the building, then put the bolts into the drill holes, install the parts to be fixed, and then tighten the nuts, and pass the expansion cone of the big end of the inner end of the bolt and the expansion sleeve. The effect of the pipe is to make the expansion sleeve expand and connect with the building tightly, so as to fix and compress the installed parts that need to be installed and fixed on the building. [0003] Expansion bolt...

AI Technical Summary

Problems solved by technology

At this time, the expansion sleeve is usually only sleeved on a part of the inner end of the bolt, and the expansion sleeve will completely extend into the deeper position in the drill hole along with the bolt, thus making it more difficult to disassemble the expansion bolt as a whole

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