JP3210938B2 - Destruction equipment for concrete etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a destruction apparatus for concrete and the like which is capable of destructing concrete, bedrock, etc. (hereinafter referred to as concrete, etc.) more statically by wedge principle without noise and vibration. More specifically, a tapered bolt having a tapered wedge portion at a lower portion and a split sleeve into which the tapered bolt is inserted are inserted into a pilot hole formed in concrete or the like, and the tapered bolt is pulled up by a screw, a hydraulic pump, or the like. The present invention relates to a concrete or the like destruction device which enables compression destruction of the concrete or the like.

[0002]

2. Description of the Related Art Conventional methods for breaking concrete and the like include hitting and breaking with a hydraulic breaker, a hammer, a pickaxe, and the like. Because it is a method of generating noise, it has a high level of noise and vibration, and may be a source of pollution in urban areas. The higher the impact force is, the more effective it is for destruction, but the reaction force may damage the frame of the device. Next, there are expansion failure due to the chemical action of the expanding material and compression failure due to the hydraulic pressure arrow, but none of them can be destroyed without a free surface (where the force escapes), making it difficult to set the free surface. This has the disadvantage that the dispersion of the destruction effect is large. There is also a method of cutting with a carbide tool such as a diamond tool. However, since a large amount of water is used for cooling the frictional heat of the tool, the arrangement of a water source is restricted, and the tool is expensive. It costs more than 10 times and is not suitable for simple destruction and demolition work. As described above, the conventional destruction method has various problems.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems by making concrete or the like noiseless and non-vibrating by the principle of wedges, is more static, is easier to handle, and has a variation in effect. An object of the present invention is to provide a destruction device for concrete or the like, which is small in size and can be destroyed at no cost. That is, the present invention provides a tapered bolt having a tapered wedge portion that expands downward at a lower portion, a split sleeve into which the tapered bolt is inserted and engaged with the tapered wedge portion, and a split sleeve.
Taper bolt pulling means for pulling up the taper bolt and expanding the split sleeve .
The tapered bolt lifting means has a center hole
The peripheral edge of the reaction force base plate is supported by multiple
Concrete, etc. that can hold the taper bolt vertically
Screw or hydraulic pressure through a reaction table installed on the upper surface of the
The taper bolt is constructed as if pulled up.
Between the reaction table and the split sleeve at the lower end.
Insert the intermediary sleeve and pull up the taper bolt
By inserting the sleeve in which the taper bolt is inserted and inserted into a pilot hole having an outer diameter into which a sleeve perforated in concrete or the like can be inserted, the taper bolt is pulled up by a screw or hydraulic pressure. A breaking device for concrete or the like, characterized in that the split sleeve is expanded so as to compressively break the concrete or the like. In the present invention, it is preferable that the taper bolt is configured to be pulled up by a hydraulic cylinder. It is also preferable that an elastic material such as a spring is wound around and embedded in the concave groove provided around the split sleeve, and the split sleeve is constantly urged to be contracted so that the split sleeve can be integrally attached to the tapered bolt.

The present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the present invention provides a taper having a tapered wedge portion 4a formed at a lower end in a pilot hole 3 drilled in concrete or the like. Along with the bolt 4, the split sleeve 7 which can be engaged with the tapered wedge portion 4a and expanded can be inserted and inserted.
A concrete or the like breaking apparatus 1 characterized in that the taper bolt 4 is pulled up by a screw or the like 5 to expand the split sleeve 7 as shown in FIG. The destruction device 1
If the taper bolt 4 is pulled up by the hydraulic cylinder 6, the breaking force can be increased. Further, in the destruction device 1, the taper bolt 4 is lifted up by a screw 5 through a reaction table 9 supported on a plurality of contact bolts 9b and installed on the upper surface 2b of the concrete 2 or the like. Is desirable. In this destruction device 1,
It is preferable that a cylindrical intermediate sleeve 8 is interposed between the reaction force table 9 and the split sleeve 7 at the lower end so that the tapered bolt 4 is pulled up. Then, in the breaking device 1, an elastic material 7b such as a spring is wound and embedded in a concave groove 7a provided around the split sleeve 7, and the split sleeve 7 is constantly contracted and biased, and is integrally inserted into the tapered bolt 4. It is characterized by the configuration that has been made possible.

[0005]

Next, the operation of the destruction device of the present invention will be described with reference to the overall configuration diagram illustrated in FIG. A tapered bolt 4 having a tapered wedge portion 4a inserted into the center of a pilot hole 3 drilled through the concrete body 2a is lifted upward by rotation of a nut 5a. Is split radially by the engagement of the tapered portion 7c and the tapered wedge portion 4a. Due to the expansion of the split sleeve 7, a compressive action starts between the split sleeve 7 and the concrete body 2a having high rigidity in the horizontal direction around the periphery of the split sleeve 7. When the force for pulling up the taper bolt 4 by turning the nut 5a is increased, the peripheral concrete body 2a
When the compressive stress between the concrete sleeve 2a and the compressive stress reaches a limit, the split sleeve 7 on the lower surface 2c of the concrete 2a is closed.
As a result, radial continuous cracks 11 are generated in the inclined direction from the expanded portion 2d toward the upper surface 2b, and rapidly compressively break. When the concrete body 2a is wide, it becomes highly rigid in the horizontal direction as described above. Therefore, in order to compressively break the concrete body 2a, the inclined continuous cracks 11 are required to intersect. A large number of pilot holes 3 are drilled at an appropriate pitch in front, rear, left and right, and the breaking device 1 is applied to each pilot hole 3 (see FIG. 3). After the completion of the destruction, if the nut 5a is rotated in the opposite direction to lower the tapered bolt 4, and the engagement of the tapered wedge portion 4a is restored, the split sleeve 7 is caused by the urging force of the elastic member 7b. To a state in which the tapered bolt 4 is integrally attached to the tapered bolt 4 and is detachable from the pilot hole 3.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall configuration diagram of a concrete or the like breaking device of the present invention, showing a case where a turning nut is used to pull up a screw portion. FIG. 2 is an overall configuration diagram when a hydraulic cylinder is used as a taper bolt lifting device. FIG. 3 is an explanatory view showing the occurrence of a continuous crack intersecting state when the present apparatus is used between adjacent pilot holes. FIG. 4 is a perspective view of a taper bolt, a split sleeve 7, and an intermediate sleeve, which are main components of the present apparatus. FIG. 5 is a perspective view showing an expanded state of the split sleeve when the taper bolt is pulled up. In the figure, 1 is a breaking device of the present invention, 2 is concrete, bedrock, etc., 3 is a pilot hole, 4
Is a taper bolt, 5 is a lifting device such as a screw, 5a is a nut, 6 is a hydraulic cylinder, 7 is a split sleeve, 8 is an intermediate sleeve, 9 is a reaction table, 10 is an intermediate block, 11
Is a continuous crack. As shown in FIG. 1, this destruction device 1 has (a) a tapered wedge portion 4a formed at its lower end portion and having a tapered wedge portion 4a whose diameter increases downward, and a screw portion 4b screwed at its upper end portion; (B) The lower inner surface is provided with a tapered portion 7c which engages with the tapered wedge portion 4b, and is a cylindrical member which can be radially divided and expanded. A split sleeve 7 having a structure in which the material 7b is wound around and embedded therein to constantly compress itself to be able to be integrally attached to the tapered bolt 4, and (c) a plurality of peripheral edges of a reaction force base plate 9a having a center hole. The taper bolt 4
Table 9a capable of vertically holding the plate, and (d) the reaction table 9a.
An intermediate sleeve 8 inserted between the sleeve 7 and the split sleeve 7 at the distal end, (e) an intermediate block 10 with a center hole provided on the reaction force base plate 9a, and (f) a screw on the screw portion 4b. And a rotating nut 5a for mounting the tapered bolt 4 on the upper surface 2b of the concrete body 2a via the reaction table 9 and the intermediate block 10. 4c is a washer for the nut 5a.

[0007] As described above, the tapered bolt 4 inserted through the split sleeve 7 and the upper intermediate sleeve 8 in the contracted state by the tapered wedge portion 4b is perforated vertically through the concrete body 2a. Into the prepared hole 3 vertically. FIG. 1 shows a state before the operation in the initial state in which it is inserted. Because it is removable with respect to pilot hole 3,
It can be inserted after being assembled outside. The operation of this destruction device starts when the tapered bolt 4 is pulled upward by the rotation of the nut 5a. The details are as described in the above-mentioned operation section, and as a result, the split sleeve 7 is expanded. The state is as shown in FIG.

In the embodiment shown in FIG. 2, a hydraulic cylinder 6 is used as a lifting device 5 for screws and the like. The hydraulic cylinder 6 is mounted on an intermediate block 10a having a large center hole, and its piston rod 6a is connected to the tapered bolt 4 via a connection joint 6b, and the tapered bolt 4 is moved up and down instead of the nut 5a. Except for the connection with the hydraulic cylinder 6, the configuration and operation are the same as those of the embodiment of FIG. When the hydraulic cylinder 6 is used, it is possible to increase the lifting force and increase the breaking force by increasing the hydraulic pressure or the piston.

As shown in FIG. 3, an adjacent pilot hole 3 drilled at an appropriate pitch in a concrete block, rock or the like 2.
In the meantime, if the inclined continuous cracks 11 generated by the present breaking device 1 are formed in an intersecting state, the large-scale concrete body 2a can be continuously and entirely broken.

As shown in FIG. 4, the tapered bolt 4 of the present apparatus is inserted into the split sleeve 7 and the intermediate sleeve 8 and assembled. Then, as shown in FIG. 5, when the tapered bolt 4 is pulled up, the split sleeve 7 is expanded by the engagement between the tapered wedge portion 4a and the tapered portion 7c.

[0011]

According to the present invention, since the present invention has a configuration utilizing the principle of wedges, it is possible to break concrete or the like without noise and without vibration and more statically than before. Further, even when the concrete body is wide and has high rigidity in the horizontal direction, continuous cracks can be crossed and easily broken by drilling pilot holes at appropriate pitches in front, rear, left and right.
In addition, strong destructive power can be expected by using a hydraulic cylinder for lifting. Moreover, it is easy to move with a simple and inexpensive configuration, and there is no danger of noise and vibration pollution. Therefore, it is suitable for dismantling concrete structures in urban areas.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of the present destruction device using a rotating nut for lifting.

FIG. 2 is an overall configuration diagram of the present destruction device using a hydraulic cylinder for lifting.

FIG. 3 is an explanatory view showing the occurrence of an intersecting state of continuous cracks between adjacent prepared holes.

FIG. 4 is a perspective view of a tapered bolt, a split sleeve 7, and an intermediate sleeve.

FIG. 5 is a perspective view showing an expanded state of a split sleeve when a taper bolt is pulled up.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Breaking device 2 Concrete, bedrock, etc. 2a Concrete body 2b Upper surface 2c Lower surface 2d Expanding portion 3 Pilot hole 4 Tapered bolt 4a Tapered wedge portion 4b Screw portion 4c Washer 5 Screw pulling device 5a Rotating nut 6 Hydraulic cylinder 6a Piston rod 6b Continuous joint 7 Split sleeve 7a Depressed groove 7b Elastic material 7c Tapered portion 8 Intermediate sleeve 9 Reaction force table 9a Reaction force plate 9b Patch bolt 10 Intermediate block 10a Intermediate block for hydraulic cylinder 11 Continuous crack

Claims (3)

(57) [Claims] A tapered bolt formed with a tapered wedge portion that expands downward at a lower portion; a split sleeve into which the tapered bolt is inserted and which is engaged with the tapered wedge portion to expand; Taper bolt raising means for raising the taper bolt to expand the split sleeve, and the taper bolt raising means has a center hole.
The peripheral edge of the reaction force base plate with multiple
The taper bolt can be held vertically and concrete
Through a reaction table installed on the upper surface of
The taper bolt is pulled up,
And between the reaction table and the split sleeve at the lower end, a cylindrical
Pull up the taper bolt through the intermediate sleeve
The sleeve in which the tapered bolt is fitted and inserted is inserted into a pilot hole having an outer diameter into which a sleeve formed in concrete or the like can be inserted, and the tapered bolt is pulled up by a screw or hydraulic pressure. Wherein the split sleeve is expanded so that the concrete or the like is statically compressed and destroyed. 2. A structure in which an elastic material such as a spring is wound around and embedded in a concave groove provided around a split sleeve, and the split sleeve is constantly contracted and biased to be integrally mounted on a tapered bolt. A destruction device for concrete or the like according to claim 1 . Wherein the lower inside of the split sleeve, destruction device such as concrete according to claim 1 or 2, characterized by having a tapered portion for engaging corresponding tapered wedge taper bolt.