Multi-point anchoring mechanical retractable anchor rod device

Abstract

The invention discloses a multi-point anchoring mechanical retractable anchor rod device, comprising a driving motor, a worm, an outer steel pipe and a plurality of sets of anchoring devices. A plurality of sections of spiral transmission structures are arranged on the worm, and the spiral directions of the adjacent spiral transmission structures are opposite; the driving motor is connected to theupper end of the worm; each section of spiral transmission structure is vertically engaged with the corresponding set of anchoring devices; each set of anchoring devices comprises a worm wheel and aradial anchoring part driven by the worm wheel; the outer diameter of the outer steel pipe is matched with that of an anchoring hole, and the positions corresponding to all the radial anchoring partsare provided with radial holes and connected with radial supporting components used for supporting radial anchoring assemblies; and the driving motor drives the worm to rotate, the worm drives all thesynchronous worm wheels to rotate, all the worm wheels enable the radial anchoring parts to stretch out of the outer steel pipe and draw back into the outer steel pipe, and the function of multi-point quick anchoring of the anchor rod device at different depths is achieved through simultaneous stretching-out of all the radial anchoring parts. The device can be retracted after the worm is rotatedreversely to enable all the radial anchoring parts to be simultaneously retracted into the outer steel pipe; and anchoring and retracting operation is easy and safe.

Description

technical field [0001] The invention belongs to bolt support technology, in particular to a multi-point anchoring mechanical recoverable bolt device. Background technique [0002] With the continuous advancement of my country's infrastructure construction, the construction industry has developed rapidly. At present, the bolt support technology is widely used in the reinforcement of urban foundation pits, and has played a significant role in urban construction. However, the extensive use of anchor rods has led to more and more anchor rods buried underground in cities. When the temporary support function fails, this traditional anchor cannot be recycled, and it is buried underground together with the built structure, occupying a large amount of underground space, forming underground garbage, causing underground environmental pollution, and the remaining anchor It becomes an underground obstacle for follow-up projects, and at the same time, it also causes waste of steel becau...

AI Technical Summary

Problems solved by technology

However, inflatable recycling has high requirements on material performance, resulting in high costs, while the actual construction and use of combined recycling technology is relatively cumbersome, and it is easy to cause difficulty in recycling due to improper operation.

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