CN109235455A

CN109235455A - A kind of double anchors expansion self-locking devices of soil anchor

Info

Publication number: CN109235455A
Application number: CN201811289427.2A
Authority: CN
Inventors: 王恺
Original assignee: China Third Metallurgical Group Co Ltd
Current assignee: China Third Metallurgical Group Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2019-01-18

Abstract

A kind of double anchors expansion self-locking devices of soil anchor, including fix and pad, promote cap, expansion anchor fluke, bar axis, tapped through hole there are two setting is fixed on padding；Propulsion cap is taper barrel；Two expansion anchor flukes are buckled togather and pass through that bar axis is hinged, constitute a two sides can opposite overturning anchoring claw；When use, two soil anchor bolts or native anchor cable are each passed through anchoring claw and promote cap and be spirally connected with the tapped through hole of fixed pad, fixed pad promotes cap and anchoring claw to be sequentially placed into the anchor hole of foundation pit slight slope, and the smaller diameter end of cap is promoted inwardly to place, and one end of anchoring claw, which is placed in, to be promoted in cap.The present invention is simple to operation, flexible and convenient to use, low in cost.Anchor bar/anchor cable generates pulling force to propulsion cap by fixed pad, and by promoting cap to generate the expansionary force of a reverse propulsion to anchoring claw, so that two expansion anchor fluke free-extensions, generate the reversal of stress effect for the more drawing the more tight, the safety coefficient for increasing anchoring better meets the security and stability of soil nail wall entirety.

Description

A kind of double anchors expansion self-locking devices of soil anchor

Technical field

The present invention relates to construction Base hole supporting technology field more particularly to a kind of double anchors of foundation pit supporting construction soil nail wall Expand self-locking device.

Background technique

With the progress of economic fast development and building technology, in building engineering field since the depth of underground engineering increases Greatly, the underground structure of many buildings needs to carry out the supporting on periphery cubic metre of earth when constructing underground foundation and space segment, to guarantee There are enough spaces to guarantee the safety condition of operating personnel, the safety measure of foundation pit slope protection is particularly important.

Inventor adheres to that the relevant industries are abundant for many years designs and develops and the experience of practice of construction, for existing construction And function is researched and developed, and a kind of native anchor expansion self-locking device is provided, to reach safer in supporting foundation pit slope protection Reliably, simple and practical purpose.

Summary of the invention

The object of the present invention is to provide a kind of native double anchors of anchor to expand self-locking device, and the present invention is suitable for two anchor poles or anchor cable It is used cooperatively, drives fixed pad inside the present apparatus that pulling force is reached propulsion cap by the tensile stress generated in carrying out drawing process Place is last again to be concentrated on strength on expansion anchor fluke it is made to generate opposition, causes two anchor fluke expansions of the present apparatus in the soil body Inside more anchor is tighter, forms good tensile stress, to guarantee that excavation slope soil anchor rod is more stable, increases its soil nail wall itself The coefficient of stability.

To achieve the above object, the present invention is implemented with the following technical solutions:

A kind of double anchors expansion self-locking devices of soil anchor, including fix pad, promote cap, expansion anchor fluke, bar axis, the fixation is padded If there are two tapped through holes；The propulsion cap is taper barrel；Two expansion anchor flukes are buckled togather and hinged, the structure that passes through bar axis It can the opposite anchoring claw overturn at a two sides；In use, two soil anchor bolts or native anchor cable are each passed through anchoring claw and propulsion Cap is simultaneously spirally connected with the tapped through hole of fixed pad, and fixed pad promotes cap and anchoring claw to be sequentially placed into the anchor hole of foundation pit slight slope, institute It states and the smaller diameter end of cap is promoted inwardly to place, one end of the anchoring claw, which is placed in, to be promoted in cap.

It is circular arc tubular that the expansion anchor fluke, which is by steel plate or iron plate curling, is up and down tip setting.

The centre for promoting cap is equipped with partition.

Compared with prior art, the beneficial effects of the present invention are:

1) complete equipment is simple to operation, flexible and convenient to use, low in cost.

2) anchor bar/anchor cable is connected with fixed pad, during being stretched, is formed and is drawn to propulsion cap by fixed pad Power promotes the pulling force effect of cap on anchoring claw, so that free-extension after two expansion anchor fluke stress, generation the more is drawn the more tight anti- To stress effect, the safety coefficient of anchoring is largely increased, better meets the security and stability of soil nail wall entirety.

Detailed description of the invention

Fig. 1 is a kind of native double anchor expansion self-locking device main views of anchor of the present invention.

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is the B-B view of Fig. 1.

Fig. 4 is the C-C view of Fig. 1.

In figure: the fixed pad of 1-, 2- promote cap, 3- tapped through hole, 4- bar axis, 5- to expand anchor fluke, 6- partition.

Specific embodiment

The present invention is described in detail below, it should be noted that implementation of the invention embodiment party not limited to the following Formula.

As Figure 1-Figure 4, a kind of double anchors of native anchor expand self-locking devices, including fixed pad 1, promote cap 2, expansion anchor fluke 5, Bar axis, sets that there are two tapped through holes 3 on the fixed pad 1；The propulsion cap 2 is taper barrel；Two expansion anchor flukes 5 are to being buckled in Together and hinged by bar axis 4, constituting a two sides can the opposite anchoring claw overturn；In use, by two soil anchor bolts/soil anchor cable It is each passed through anchoring claw and promotes cap 2 and be spirally connected with the tapped through hole of fixed pad 1, fixed pad 1 promotes cap 2 and anchoring claw successively It is placed in the anchor hole of foundation pit slight slope, the smaller diameter end for promoting cap 2 is inwardly placed, and one end of the anchoring claw is placed in propulsion In cap 2.

In the anchor hole for the foundation pit slight slope that soil anchor bolt/soil anchor cable is fixed by conventional methods, installs and fix when whole device After good, during soil anchor bolt/soil anchor cable is stretched, soil anchor bolt/soil anchor cable can be to fixed 1 one pulling force of pad, the pulling force Push out promote cap 2, due to promote cap 2 be taper barrel, make anchoring claw to promote cap 2 inside slide into during outward Overturning expansion, leading to it, more anchor is tighter in the soil body, produces the reversal of stress for the more drawing the more tight.

It is circular arc tubular that the expansion anchor fluke 5, which is by steel plate or iron plate curling, is up and down tip setting.

Steel plate/iron plate for making expansion anchor fluke 5 is quadrangle, and the quadrangle is using one of diagonal line as axis Symmetrically, steel plate/iron plate is curled into the tubular of semi arch using the diagonal line as the axis direction of cylinder when curling.Two expansions The mutual make-up of anchor fluke 5 is opened, and hinged by bar axis 4, when one end is inwardly overturn, the other end expands outwardly naturally.

The centre for promoting cap 2 is equipped with partition 6.The anchoring that the present invention can be used for double soil anchor bolt/soil anchor cables stretches.

The present invention comprehensively updates traditional soil-nail wall support device, adds completely new anchoring and expands self-locking dress It sets, increase soil anchor bolt/rope anchor which can be bigger draws reaction stress, draws its anchor tie Suo Yue tighter, preferably Guarantee the stabilization of soil nail wall, increases the safety of slight slope protection.

Claims

1. a kind of double anchors of soil anchor expand self-locking device, which is characterized in that including fixed pad, promote cap, expansion anchor fluke, bar axis, institute State tapped through hole there are two setting on fixed pad；The propulsion cap is taper barrel；Two expansion anchor flukes are buckled togather and pass through Bar axis is hinged, and constituting a two sides can the opposite anchoring claw overturn；In use, two soil anchor bolts or native anchor cable are each passed through anchor Gu pawl and propulsion cap are simultaneously spirally connected with the tapped through hole of fixed pad, fixed pad, propulsion cap and anchoring claw are sequentially placed into foundation pit slight slope In anchor hole, the smaller diameter end for promoting cap is inwardly placed, and one end of the anchoring claw, which is placed in, to be promoted in cap.

2. the double anchors of a kind of native anchor according to claim 1 expand self-locking devices, which is characterized in that the expansion anchor fluke be by Steel plate or iron plate curling are circular arc tubular, are up and down tip setting.

3. a kind of native double anchors of anchor according to claim 1 expand self-locking device, which is characterized in that the centre for promoting cap Equipped with partition.