CN205089345U - Anchor rope is put by pressure equipment - Google Patents

Abstract

The utility model discloses a pressure relief device for anchor cables, which is composed of a shrinking sleeve, a seam-type pressure relief pipe and a lock. There is an extension structure at the bottom of the neck sleeve; the seam-type relief tube is made of metal, and the pipe body has a gap of the same width from top to bottom; the seam-type relief pipe is placed inside the shrinking sleeve and set on Anchor cable body, one end of the seam pressure tube is located in the tapered hole section of the necking sleeve, and the other end is fastened by a lock. The deformation force of the surrounding rock pushes the lock to the fine hole section of the necking sleeve The yielding pipe is used to realize the balanced yielding of the anchor cable; the anchoring cable yielding device has the advantages of simple structure, convenient construction and strong adaptability, and has good promotion prospects.

Description

A kind of anchor cable yielding device

technical field

The utility model belongs to the technical field of rock-soil anchorage and engineering support, and is especially suitable for underground roadway support, and in particular relates to a pressure relief device for anchor cables.

Background technique

With the continuous extension of the mine to the deep, the surrounding rock conditions of the roadway are becoming more and more complex. Under the action of high stress, the surrounding rock of the roadway often shows irresistible large deformation characteristics, and the deformation of the surrounding rock often exceeds the extension of the anchor cable and causes the breakage of the anchor cable, and even causes the roof or side of the roadway to collapse. Although the currently used anchor cables have the advantages of high strength, large control range, and high prestress can be applied, their elongation and impact resistance are difficult to adapt to the severe deformation of the surrounding rock, and they will break under a certain pressure. In order to solve this kind of problem, people through a lot of practice, constantly explore new materials and structures to improve the support body, and achieved some beneficial results, such as constant resistance large deformation anchor (cable), constant resistance deformer etc., but the resulting increase in support costs and construction procedures limits the extensive application of existing achievements to a certain extent. The anchor cable yielding device proposed by the utility model has the advantages of simple structure, convenient construction, strong adaptability, etc., which not only ensures the continuous yielding of the anchor cable under constant high-strength support resistance, but also effectively alleviates the instantaneous impact force and the tensile failure of the cable body due to the large deformation of the surrounding rock.

Utility model content

In view of the deficiencies in the prior art, the purpose of the utility model is to provide a pressure relief device for anchor cables with simple structure, convenient construction and strong adaptability.

The technical scheme that the utility model solves its technical problem adopts is:

An anchor cable yielding device, which is composed of a shrinking sleeve, a seam-type yielding tube and a lock. The necking sleeve is made of metal and includes a thick hole section, a tapered hole section and a fine hole section. Epitaxial structure; seam-type pressure tube is made of metal, and the pipe body has a gap of the same width from top to bottom; The length of the sleeve and the seam-type relief pipe can be adjusted according to the actual deformation of the roadway; one end of the seam-type relief pipe is located in the tapered hole section of the necking sleeve, and the other end is fastened by a lock to prevent deformation of the surrounding rock. The active force prompts the lock to squeeze the pressure relief tube to the fine hole section of the reducing sleeve, so as to realize the balanced pressure relief of the anchor cable.

The beneficial effects of the utility model:

An anchor cable yielding device, which consists of a shrinking sleeve, a seam-type yielding tube and a lock. The necking sleeve is made of metal and includes a thick hole section, a tapered hole section, and a fine hole section. The bottom of the necking sleeve is There is an extension structure at the end; the seam-type pressure pipe is made of metal, and its pipe body has a gap of the same width from top to bottom; the seam-type pressure pipe is placed inside the shrinking sleeve and is set on the anchor cable body ; One end of the pressure seam relief pipe is located in the tapered hole section of the necking sleeve, and the other end is fastened by a lock. The deformation force of the surrounding rock forces the lock to squeeze the relief pipe to the fine hole section of the shrinking sleeve. So as to realize the equal pressure of the anchor cable. The pressure yielding device not only realizes the continuous pressure yielding of the anchor cable under high support resistance, but also effectively alleviates the damage to the cable body caused by the instantaneous impact force in the case of abnormal rock formation pressure, etc., and the yield length of the device can be adjusted according to the roadway The actual deformation is adjusted, and the operation is simple and easy to use during the application process, which solves the problem that the traditional anchor cable is easy to break under the conditions of large deformation of surrounding rock and impact load.

Description of drawings

A more complete and better understanding of the invention, and many of its attendant advantages, will be readily appreciated by reference to the following detailed description when considered in conjunction with the accompanying drawings, but the accompanying drawings illustrated herein are intended to provide a further understanding of the invention , constituting a part of the utility model, the exemplary embodiment of the utility model and its description are used to explain the utility model, and do not constitute an improper limitation of the utility model, wherein:

Figure 1 is a schematic diagram of the structure of the anchor cable yielding device.

Figure 2 is a schematic cross-sectional view of the seam-type yielding pipe.

detailed description

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, an anchor cable yielding device is composed of a shrinking sleeve (1), a seam-type yielding tube (2) and a lock (3), and the necking sleeve (1) is Metal material, including coarse hole section (4), tapered hole section (5) and fine hole section (6), the bottom of necking sleeve (1) is provided with extension structure (7); ) is made of metal, and its pipe body has a gap (8) with the same width from top to bottom; the seam-type let-down pipe (2) is placed inside the shrinking sleeve (1), and is set on the anchor cable body (9 ); one end of the pressure seam pressure pipe (2) is located at the tapered hole section (5) of the necking sleeve (1), and the other end is fastened by the lock (3), and the deformation force of the surrounding rock (10) promotes The lock (3) squeezes the pressure relief pipe (2) to the fine hole section (6) of the reducing sleeve (1), thereby realizing balanced pressure relief of the anchor cable.

During specific implementation, first drill the anchor cable hole and ream according to the length and diameter of the diameter reducing sleeve (1), then install the anchor cable (9), and after the anchoring agent is solidified, pass the diameter reducing sleeve (1) through Put the anchor cable (9) and the tray (11) into the anchor cable hole, and finally put the pressure seam pressure tube (2) through the anchor cable (9) and place it in the reducing sleeve (1), and lock it (3) Fasten it to the exposed end of the anchor cable (9).

The above is a detailed description of the utility model for those of ordinary skill in the art to understand the utility model, but it is conceivable that other changes and changes can be made without departing from the scope covered by the claims of the utility model. Modifications, these changes and modifications are all within the protection scope of the present utility model.

Claims (3)

1. an anchor cable is by pressure device, be made up of by pressure pipe and lockset undergauge sleeve, overlapping seam type, it is characterized in that necking down sleeve comprises coarse pore section, taper hole section and pore section, overlapping seam type is placed in undergauge sleeve inner by pressure pipe, and be set in anchor cable, overlapping seam type is positioned at the taper hole section of necking down sleeve by pressure pipe one end, and the other end is fastening by it by lockset.

2. a kind of anchor cable according to claim 1 is by pressure device, and it is characterized in that necking down sleeve is metal material, its bottom is provided with epitaxial structure.

3. a kind of anchor cable according to claim 1 is by pressure device, and it is characterized in that overlapping seam type is metal material by pressure pipe, its body has the identical breach of width from top to bottom.