JPH11141144A - Hose for breaking stone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive a breaking method to give directionality to a stone by arranging half-split rigid boards having a nearly equal inner diameter to a hole diameter at the outside of a hose inserted in the hole formed in a substance to be broken and applying a pressure in the hose to bring about cracks in the substance by the expanding force. SOLUTION: Half-split rigid plates 9 divided by slits 10, provided with almost the same inner diameter with the diameter of a hole 21 formed in a substance 20 to be broken such as a rock bed at the outside of the hose 1 and extended to the longitudinal direction of a hose 1, are arranged. The rigid plates 9 can be positioned to contact the inside face of the hole 21 by the expansion of the hose 1. After the hole 21 having a specified depth and diameter has been formed in the substance 20, the hose 1 provided with half-split rigid plates 9 is inserted therein and expanded by pressurizing the inside of the hose 1. And hence, the expanding force of the hose 1 is propagated to the rigid plate 9 to radially bring about cracks extending from the slit 10. In this way, when breaking a substance 20 such as a concrete foundation block of a building or a bed rock, these substances 20 can be broken into aimed shaped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing hose which generates cracks in a body to be crushed by utilizing the expansion force of a hose, and more particularly, to crushing a body to be crushed with a direction. The present invention relates to a stone splitting hose that has made it possible.

[0002]

2. Description of the Related Art When crushing a crushed object such as a concrete block such as a steel tower, a concrete foundation block of a building, and a bedrock, a hole having a predetermined depth is drilled in the crushed body, and dynamite, Filled with iron wedge, swelling agent, etc. and crushed. However, the crushing method as described above has a problem in safety due to noise, vibration, scattering of chemicals, scattering of fragments of the crushed object, and a problem of deteriorating the surrounding environment.

In recent years, a method has been proposed in which a hose is inserted into a hole provided in a crushed object, pressure is applied to the inside of the hose to expand the hose, and the expansion force causes a crack in the crushed object. However, since the crushing force of the above-mentioned crushing hose depends on the expansion force of the hose, there is a problem that the crushed object cannot be crushed with a direction.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stone splitting hose capable of crushing an object to be crushed with a direction.

[0005]

In order to achieve the above-mentioned object, a stone splitting hose according to the present invention is provided by inserting a hose into a hole provided in a body to be crushed, applying pressure to the inside of the hose and expanding the hose. A quarrying hose for causing cracks in the crushed body due to expansion force, characterized in that a half-split hard plate having an inner diameter substantially equal to the diameter of the hole is arranged outside the hose. It is.

By disposing a half-split hard plate having an inner diameter substantially the same as the diameter of the hole outside the hose, the expansion force of the hose propagates to the half-split hard plate, and On the other hand, cracks can be generated in the radial direction starting from the slits between the hard plates. According to another aspect of the present invention, there is provided a crushing hose according to the present invention, in which a hose is inserted into a hole provided in a body to be crushed, pressure is applied to the inside of the hose to expand the hose, and the expanding force is applied by the expansion force. A stone splitting hose that causes cracks in a crushed body, characterized in that a half-split hard plate having an inner diameter substantially equal to the diameter of the hole and having a projection on the outer surface is arranged outside the hose. Things.

As described above, by disposing a half-split hard plate having an inner diameter substantially equal to the diameter of the hole and having a projection on the outer surface outside the hose, the expansion force of the hose is reduced to a half-split hard plate. It is possible to propagate and generate cracks in the radial direction from the projection of the hard plate with respect to the object to be crushed.
In the present invention, the half-split hard plate can be made of metal, fiber-reinforced plastic, or the like. Especially,
It is preferable to use a hard plate having a higher hardness than the object to be crushed. By making the hardness of the hard plate higher than the hardness of the object to be crushed, the object to be crushed can be crushed with a direction.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 illustrates a hose used in the present invention. In the drawing, a hose 1 has a first reinforcing layer 5, a middle rubber layer 6, and a second reinforcing layer 7 in which a wire braid 4 is densely braided, interposed between an inner rubber layer 2 and an outer rubber layer 3.

Note that the braid angle α of the wire braid 4 of the first reinforcing layer 5 and the second reinforcing layer 7 is a static angle (α = 109.5
°), preferably in the range of 60 ° to 90 °. When the braid angle α of the wire braid 4 is greater than the static angle, even if pressure is applied to the inside of the hose 1, the hose 1 does not expand radially but extends in the longitudinal direction, and the braid angle α is less than 30 °. When it is set to, the pressure resistance cannot be maintained. Hose 1 is 100kgf / c
It is preferable that the outer diameter expands by 10% or more when an internal pressure of m ² is applied. If the expansion rate is less than 10%, the crushing power becomes insufficient.

FIGS. 2 and 3 illustrate a stone breaking hose according to a first embodiment of the present invention. In the drawing, a metal fitting 8 having a pressure injection port is attached to one end of a hose 1, and a pressure medium made of gas or liquid is injected into the hose 1 from the pressure injection port.
The other end (not shown) of the hose 1 is closed by a fitting or the like.

The outside of the hose 1 is divided by a slit portion 10 having an inner diameter substantially equal to the diameter of a hole 21 provided in a crushed body 20 made of a concrete block, a bedrock or the like, and extending in the longitudinal direction of the hose 1. A half-split hard plate 9 is arranged. The hard plate 9 comes into contact with the inner surface of the hole 21 as the hose 1 expands. Further, the hard plates 9 in a half-split shape may be connected to each other by an elastic member, and the hard plates 9 may be held outside the hose 1.

When the crushed object 20 is crushed by using the crushing hose configured as described above, a hole 21 having a predetermined depth and a predetermined diameter is formed in the crushed object 20 and then the crushed object is formed. Hose 1 provided with half-cut hard plate 9 in hole 21
Is inserted into the hose 1 to expand it by applying pressure.
As a result, the expansion force of the hose 1 is propagated to the hard plate 9, and a crack 22 can be generated in the crushed object 20 in the radial direction from the slit 10.

FIGS. 4 and 5 show a stone breaking hose according to a second embodiment of the present invention. In the figure, a metal fitting 8 having a pressure injection port is attached to one end of a hose 1, and a pressure medium made of gas or liquid is injected into the hose 1 from the pressure injection port.
The other end (not shown) of the hose 1 is closed by a fitting or the like.

The hose 1 has a projection 11 on the outer surface, which has an inner diameter substantially equal to the diameter of a hole 21 provided in a crushed body 20 made of a concrete block, a bedrock, or the like.
A hard plate 9 in a half-split shape divided by a slit portion 10 extending in the longitudinal direction is disposed. The protrusions 11 are continuously or intermittently arranged on the outer surface of each hard plate 9 along the longitudinal direction of the hose 1. The hard plate 9 comes into contact with the inner surface of the hole 21 while abutting the protrusion 11 with the expansion of the hose 1. Further, the hard plates 9 in a half-split shape may be connected to each other by an elastic member, and the hard plates 9 may be held outside the hose 1.

When the crushed object 20 is crushed by using the stone breaking hose configured as described above, a hole 21 having a predetermined depth and a predetermined diameter is formed in the crushed object 20, and then the hole 21 is formed. Half-cut hard plate 9 with projections 11 provided in holes 21
Is inserted, and the hose 1 is expanded by applying pressure to the hose 1. As a result, the expansion force of the hose 1 is transmitted to the hard plate 9, and a crack 22 can be generated in the radial direction from the crushed object 20 starting from the projection 11.

[0016]

As described above, according to the present invention, a hose is inserted into a hole provided in a crushed object, pressure is applied to the inside of the hose and expanded, and the crushed object is cracked by the expansion force. A semi-rigid hard plate having an inner diameter substantially the same as the diameter of the hole to be inserted, or an inner diameter substantially the same as the diameter of the hole to be inserted, and a projection on the outer surface of the hose. By arranging the half-split hard plate having the above, the object to be crushed can be crushed with a direction.

Therefore, according to the present invention, when crushing a concrete block such as a steel tower, a concrete foundation block of a building, and a bedrock, the crushable body can be crushed into a desired shape. become.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view illustrating a hose used in the present invention.

FIG. 2 is a front view illustrating a stone breaking hose according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view showing the stone breaking hose of FIG. 2;

FIG. 4 is a front view illustrating a stone breaking hose according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view showing the stone breaking hose of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hose 8 Hardware 9 Hard plate 10 Slit part 11 Projection 20 Crushed object 21 Hole 22 Crack

Claims (2)

[Claims] 1. A hose is inserted into a hole provided in a body to be crushed,
A stone splitting hose that expands by applying pressure to the inside of the hose and causes the crushed body to crack due to the expansion force, wherein a half-split shape having an inner diameter substantially equal to the diameter of the hole is provided outside the hose. Hose for stone splitting with a hard plate. 2. A hose is inserted into a hole provided in the object to be crushed,
A stone splitting hose which expands by applying pressure to the inside of the hose and causes the crushed body to crack due to the expansion force, wherein the outer diameter of the hose is substantially the same as the diameter of the hole, and the outer surface has a projection. Hose for quarrying on which a half-split hard plate having