KR20150034341A - The concrete pipe pile cutting device for a constructing foundation work - Google Patents

Abstract

The present invention relates to a concrete pile cutting device for a foundation work. The concrete pile cutting device for a foundation work comprises: a main bracket formed in a plate shape vertically stood, and where an upper end and a lower end are horizontally bent in each concrete pile direction; two upper roller installing brackets installed in a hole, vertically penetrating through a bent upper portion of the main bracket to be rotatable, and installing upper rollers in a horizontal direction as the other side is vertically bent downward; a lifting bracket horizontally extended; two lower roller installing brackets installed in a hole, vertically penetrating through in the lifting bracket to be rotatable, and installing lower rollers in a horizontal direction as the other side is vertically bent downward; and a driving motor rotating one of the lower rollers.

Description

[0001] The present invention relates to a concrete pile cutting device for a concrete pile cutting device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a concrete pile cutting apparatus for a foundation hole, and more particularly, to a concrete pile cutting apparatus for a foundation hole, The present invention relates to a concrete pile cutting apparatus for a pile of concrete piles, which is developed in order to prevent the cut concrete from being damaged due to its own weight and to stop the operation or damage of the pile.

When constructing various structures such as buildings, bridges and dams on the ground, it is necessary to construct a work to transfer the vertical load due to the structure's own weight and the horizontal load due to earthquake and wind to the ground. do.

In particular, in the case of soft grounds such as reclaimed landfills and sub-basins that are under water flow and limestone areas where safety concerns are serious, foundation work must be carried out to fix steel pipes or concrete piles in the ground. It can be said that the depth and spacing of such a file greatly influences the stability of the structure.

FIG. 18 is a sectional view of a foundation in which a general foundation work file is installed. The height of the file 1 is not constant since the state of the indicator is uneven after the work of putting the file 1 is performed. After the work, It is not easy to cut a file made of solid concrete, although it is necessary to set a constant height and then cut it.

For this purpose, a device has been developed to cut and rotate the file around a file (1) while being fixed at a certain height. However, it is difficult to install one worker with comparatively heavy equipment. The cut concrete file (1) There is a problem that the cutting edge is interrupted to interrupt or break the rotation.

(Patent Document 1) Korean Patent Registration No. 10-0357897-0000 (October 09, 2002) (Patent Document 2) Korean Patent Registration No. 10-0711708-0000 (April 19, 2007) (Patent Document 3) Korean Patent Registration No. 10-0760869-0000 (September 17, 2007) (Patent Document 4) Korean Patent Registration No. 10-0813595-0000 (Mar. 07, 2008) (Patent Document 5) Korean Patent Registration No. 10-0941571-0000 (Feb. 02, 2010)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a concrete structure for a concrete structure, which can easily perform a work for installing a guide for wrapping a concrete file to cut a concrete file, And to develop a file cutting device.

It is another object of the present invention to provide a concrete file cutting apparatus for a foundation operator who can prevent a concrete file on an upper portion from falling during a cutting process of a concrete file to prevent the cutting edge of the grinder from being rotated or broken due to its own weight.

According to an aspect of the present invention, there is provided a concrete pile comprising: a rail having a circular shape having a diameter larger than an outer diameter of a concrete pile, the rail being divided into two halves; a hinge provided at a central portion of the rail to be folded or folded in half; A guide comprising a plurality of radially internal radii in the rail to securely mount the rail on the concrete pile and a catch to securely fix the body to the pile after it is installed to surround the pile, A driving motor for rotating one of the rollers and the rollers, and a cutting device for cutting a concrete file on which a guide is mounted, the apparatus comprising:

Wherein the guide has a semicircular shape having an extension angle (?) Of at least 10 degrees greater than 180 degrees, and upper and lower rails having a circular cross section by a first connection bracket are vertically connected and fixed at both ends, 1) a fixing bracket to which a guide fixing bolt mounted in the center of the file is coupled;

The upper rail and the lower rail having a circular cross section are vertically connected and fixed by the second connection brackets at both ends and in the middle at an angle of less than 10 degrees at 180 °, And a guide fixing bolt mounted on the fixing guide, wherein the fixing guide is composed of an opening / closing guide which is hinged to one end and is coupled to the other end by a catch;

Wherein the cutting device comprises a main bracket formed in a vertically installed plate shape and having upper and lower ends bent horizontally in the direction of a concrete pile; Two upper roller mounting brackets rotatably mounted in a hole vertically passing through the bent upper portion of the main bracket and the other side bent to a vertical lower portion and mounted with a horizontal upper roller; An ascending / descending bracket extending horizontally; Two lower roller mounting brackets rotatably mounted on vertically penetrating holes formed in the ascending / descending bracket and the other side bent to a vertical lower portion and mounted with a horizontal lower roller; A driving motor for rotating any one of the lower rollers; A pair of guide bolts inserted into the holes vertically passing through the bent lower portion of the main bracket from below and inserted into the compression coil spring and fixed to the upward and downward brackets so that a compression force is applied to the compression coil spring; A main lifting bracket fixed to the lifting bracket via a vertical pipe at an upper end of the main bracket; a handle rotatably connected to the clamp mounting rib extended upward from the upper end of the main bracket, And a connecting link having both ends rotatably connected to an upper end of the ascending / descending axle and a position spaced apart from the clamp mounting rib of the handle link; A rotation bracket rotatably connected to one end of the main bracket by a fixing bolt, one end fixed to the rotation bracket, and the other end fixed to the horizontally bent lower end of the main bracket, A spring for allowing the other side of the bolt to rotate in the direction of the concrete pile; a grinder having a circular rotating cutting edge fixedly mounted on the bottom surface of the rotation bracket; And the cutting blade of the grinder is operated by a ground bar which is in close contact with the outer diameter surface of the concrete pile before the concrete pile reaches the inner diameter surface of the rotary bracket, And a limit switch for moving the guide along the guide.

In addition, the lower roller that is rotated by the driving motor may further include a non-slip packing mounted along a circular surface in close contact with the lower rail.

Further, the main bracket and the lifting / lowering bracket on which the upper roller mounting bracket and the lower roller mounting bracket are mounted are further provided with curved guide slots each having a center of rotation about the upper roller mounting bracket and the lower roller mounting bracket, respectively ;

And the lower roller mounting bracket and the lower roller mounting bracket have a guide protrusion inserted into the guide slot.

As described above, according to the present invention, the operation of installing the guide for wrapping around the concrete pile can fix the guide to the steel pipe file and then connect the opening and closing guide, so that the guide can be easily installed and easily performed by a single person It is effective.

In addition, since the cutting line is completely cut to the inner diameter surface of the concrete pile so that the glue line is cut while leaving a portion adjacent to the inner diameter of the concrete pile, the upper pile of concrete is dropped, It is possible to prevent the grinder or the cutting edge from being damaged by the load or by the load.

Figure 1 is a perspective view of an embodiment of the present invention.
2 is a plan view showing a state before coupling of a guide according to an embodiment of the present invention;
3 is a plan view showing a state in which only the fixed guide according to the embodiment of the present invention is engaged;
4 is a plan view showing a state in which a guide according to an embodiment of the present invention is engaged;
5 is a plan view showing a state where a cutting device is mounted on a guide according to an embodiment of the present invention.
6 is a perspective view illustrating a cutting apparatus according to an embodiment of the present invention.
7 is a rear perspective view illustrating a cutting apparatus according to an embodiment of the present invention.
8 is an exploded perspective view showing a cutting apparatus according to an embodiment of the present invention.
9 to 10 are sectional side views showing a process of mounting a cutting device on a rail according to an embodiment of the present invention.
11 to 12 are a front view showing a process of mounting a cutting device on a rail according to an embodiment of the present invention
13 is a conceptual diagram illustrating the operation of the glinarizer according to an embodiment of the present invention.
14-15 are conceptual diagrams showing the operation of the limit switch according to an embodiment of the present invention.
16 is a conceptual diagram illustrating operation of a cutting apparatus according to an embodiment of the present invention.
17 is a plan view showing each variation of the roller according to an embodiment of the present invention.
Fig. 18 is a cross-sectional view of a foundation in which a general foundation file is installed

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a plan view showing a state before a guide according to an embodiment of the present invention is assembled, and FIG. 3 is a perspective view illustrating a state in which only a fixed guide according to an embodiment of the present invention FIG. 4 is a plan view showing a state where a guide according to an embodiment of the present invention is coupled, FIG. 5 is a plan view showing a state where a cutting device is mounted on a guide according to an embodiment of the present invention, FIG. A hinge which is formed in a circular shape so as to have a diameter larger than the outer diameter of the concrete pile 1 and is formed in a central portion thereof so as to be folded or folded in half by dividing the rail into two halves; A plurality of bushings are provided to firmly mount the rail on the concrete pile 1, (2) for moving the guide (2), two or more rollers moving along the guide (2), a driving motor for rotating one of the rollers, and a cutting 1. A concrete pile cutting device for a foundation hole, comprising: a device (3);

The guide 2 has a semicircular shape having an extension angle? Extending by more than 10 degrees from 180 degrees and has an upper rail 21 and a lower rail 21 having a circular cross- A fixing guide 2a to which a guide fixing bolt 24 mounted in the center of the concrete pile 1 is coupled to the first connection bracket 23;

An upper rail 21 and a lower rail 22 having a circular cross section are vertically connected and fixed by a second connection bracket 25 at both ends and in the middle thereof with a semicircular shape lacking more than 10 degrees from 180 °, A guide fixing bolt 24 is attached to the second connection bracket 25 in the center of the concrete pile 1. The fixing guide 2a has one end coupled to the hinge 26, And an opening / closing guide (2b) coupled by a guide (27).

In the past, the guide was formed as a round cylinder, and the rail was formed at the upper part and the lower part. However, when the plate is formed as a plate, the weight is considerably heavy. Therefore, it is difficult to install the guide. It was possible.

Furthermore, if the guide is bisected by 180 ° and locked with the claw 27 and the guide fixing bolt 24 is not tightened, it is not fixed and the operation becomes more inconvenient.

However, in this embodiment, the fixing guide 2a can be fixed only by the guide fixing bolt 24 formed on the fixing guide 2a so that the fixing guide 2a has an angle of 180 degrees or more, The opening and closing guide 2b is fixedly engaged with the locking block 27 so that the operator can be easily mounted. When the installation of the guide 2 is completed, the cutting device 3 And is mounted on the guide 2.

FIG. 6 is a perspective view illustrating a cutting apparatus according to an embodiment of the present invention, FIG. 7 is a rear perspective view illustrating a cutting apparatus according to an embodiment of the present invention, FIG. 8 is a cross- 9 to 10 are side cross-sectional views illustrating a process of mounting a cutting device on a rail according to an embodiment of the present invention, and FIGS. 11 to 12 are sectional views of a cutting apparatus according to an embodiment of the present invention, A main bracket 31 formed in a vertically installed plate shape and having upper and lower ends bent horizontally in the direction of the concrete pile 1;

Two upper roller mounting brackets 32 mounted rotatably in holes vertically penetrating the bent upper portion of the main bracket 31 and the other side bent up to a vertical lower portion and mounted with a horizontal upper roller 321;

An ascending / descending bracket 33 extending horizontally;

Two lower roller mounting brackets 34 which are rotatably mounted on vertically penetrating holes formed in the ascending / descending bracket 33 and whose other side is bent to a vertical lower portion and to which a horizontal lower roller 341 is mounted;

A drive motor (35) for rotating any one of the lower rollers (341); Inserted into the hole vertically through the bent lower portion of the main bracket 31 from below and inserted into the compression coil spring 361 and then fixed to the upward and downward bracket 33 to be fixed to the compression coil spring 361 A pair of guide bolts (36) for applying a compressive force;

A lifting and lowering shaft 371 which is fixed at the upper end of the main bracket 31 by a vertical tube to a lifting bracket 33 at the lower end and a clamp mounting rib 372 extending upward from the upper end of the main bracket 31 A grip link 374 whose one end is rotatably connected and the other end is formed with a knob 373 and a position where the upper end of the ascending and descending axis 371 is spaced apart from the clamp mounting rib 372 of the handle link 374 And a connecting link 375 rotatably connected at both ends thereof, respectively;

A rotation bracket 382 rotatably connected to a lower bent end of the main bracket 31 by a fixing bolt 381 and a rotation bracket 382 fixed to one side of the rotation bracket 382 and the other side of the main bracket A spring 383 which is fixed to the horizontally bent lower end of the rotation bracket 381 and rotates the other side of the rotation bracket 382 on which the fixing bolt 381 is mounted in the direction of the concrete pile 1; A grinder 38 mounted and fixed to the bottom surface and having a circular rotating cutting edge 384;

The cutting edge 384 of the grinder 38 is extended from the other end of the rotary bracket 382 to which the fixing bolt 381 of the rotary bracket 382 is attached so that the cutting edge 384 of the grinder 38 is pressed against the inner surface of the concrete pile 1 And a limit switch 39 which is operated by a grounding bar 391 which is in close contact with an outer diameter surface to operate the drive motor 35 to move the cutting device 3 along the guide 2. [

Two upper rollers 321 and two lower rollers 341 are provided so as to be in close contact with the upper portion of the upper rail 21 and the lower portion of the lower rail 22 and operated by the drive motor 35 The lower roller 341 is rotated so that the cutting device 3 can move.

The lower roller 341 is mounted on the ascending and descending bracket 33 and is lifted and lowered by the fixing clamp 37. When the handle 373 is lifted up by the connection link 375, The lower link roller 341 is moved upward so that the linking part of the gripping link 374 is positioned above the connection part between the clamping linking rib 372 and the handle link 374, ) Are combined with each other.

Conversely, when the knob 373 is folded downward, the connection portion between the connection link 375 and the knob link 374 is positioned below the connection portion between the clamp mounting rib 372 and the knob link 374, The lower roller 341 descends and the cutting device 3 becomes detachable.

At this time, the cutting device 3 including the grinder 38 has a considerable load. In order to carry out the mounting and separation work while bearing the load, the main bracket 31 is provided with a moving knob 312 to facilitate the movement thereof. .

In addition, since the grinder 38 generates considerable vibration during use and incorporates a motor and its own weight is considerable in weight, the grinder 38 may not be securely fixed by simply mounting the grinder 38 on the rotation bracket 382.

Therefore, the main bracket 31 may be further provided with an auxiliary fixing bracket 313 capable of holding and holding the rear portion of the grinder 38 so that the rear portion of the grinder 38 can be fitted and fixed to the auxiliary fixing bracket 313. [ It is also a preferred embodiment.

The lower roller 341 rotated by the drive motor 35 is further provided with a sliding keypad packing 342 mounted along a circular surface in close contact with the upper rail 21 so that the lower roller 341 slides So that it can be moved by stable rotation.

FIG. 13 is a conceptual diagram illustrating the operation of the glue line according to an embodiment of the present invention, FIGS. 14 to 15 are conceptual diagrams showing the operation of the limit switch according to an embodiment of the present invention, In the case of the concrete file 1 made of concrete, when the inner diameter surface of the concrete pile 1 is completely cut during the cutting process, the cut concrete pile 1 is lowered The cutting edge 384 is pressed against the cutting edge 384 and the rotation is stopped frequently. This phenomenon affects the working speed and the load is applied to the grinder 38 by the impact and the stop due to the repeated falling, Is generated. In this case,

Therefore, in this embodiment, the grinder 38 is gradually subjected to the depth cutting operation by the spring 383, and at any moment the ground bar 391 comes into contact with the outer surface of the concrete pile 1, and the ground bar 391 presses Upon receiving the limit switch 39, the drive motor 35 is operated to drive the limit switch 39 so that the same part is no longer cut and moved to cut another part so that a part adjacent to the inner diameter surface is not cut.

With this configuration, not only the complete cut of the concrete pile 1 but also a part of the pile adjacent to the inside diameter is not cut, and the operator can dismantle the cutting device 3 and the guide 2, So as to prevent the grinder 38 from being damaged and the work progress being delayed.

17 is a plan view showing a variation of each of the rollers according to an embodiment of the present invention. The main bracket 31 and the ascending / descending bracket 33, on which the upper roller mounting bracket 32 and the lower roller mounting bracket 34 are mounted, Further comprises a curved guide slot 311 centered on the rotation center of the upper roller mounting bracket 32 and the lower roller mounting bracket 34, respectively;

The lower roller mounting bracket 32 and the lower roller mounting bracket 34 are provided with guide protrusions 322 which are inserted into the guide slots 311.

The upper roller 321 or the lower roller 341 may be rotated by the shock and vibration that may occur when the upper roller mounting bracket 32 and the lower roller mounting bracket 34 are simply mounted, The cutting device 3 may be disengaged when it is tilted so as to be perpendicular to the traveling direction of the lower roller mounting bracket 32 and the lower roller mounting bracket 34.

1: File
2: Guide
2a: Fixed guide 2b: Opening and closing guide
21: upper rail 22: lower rail
23: first connection bracket 24: guide fixing bolt
25: second connection bracket 26: hinge
27: Clasp
3: Cutting device
31: Main bracket
311: guide slot 312: shift handle
313: Secondary fixing bracket
32: Upper roller mounting bracket
321: upper roller 322: guide projection
33: ascending / descending bracket
34: Lower roller mounting bracket
341: Lower roller 342: Non-slip packing
35: drive motor
36: Guide bolt
361: Compression coil spring
37: Fixing clamp
371: ascending / descending axial shaft 372: clamp mounting rib
373: Handle 374: Handle link
375: Connection link
38: Grinder
381: Fixing bolt 382: Rotation bracket
383: spring 384: cutting edge
39: Limit switch
391: Grounding bar

Claims (3)

A rail which is formed in a circular shape so as to have a diameter larger than the outer diameter of the concrete pile 1 and which is divided in half and a hinge provided at the central portion of the rail so that the rail is divided in half and folded or folded, A guide (2) provided with a bushing (2) for mounting the rail firmly to the concrete pile (1) and a cushion for firmly fixing the body to the pile And a cutting device (3) for cutting a concrete file (1) equipped with a guide motor (2) and a drive motor for rotating one of the rollers and one of the rollers.
The guide 2 has a semicircular shape having an extension angle? Extending by more than 10 degrees from 180 degrees and has an upper rail 21 and a lower rail 21 having a circular cross- A fixing guide 2a to which a guide fixing bolt 24 mounted in the center of the concrete pile 1 is coupled to the first connection bracket 23;
An upper rail 21 and a lower rail 22 having a circular cross section are vertically connected and fixed by a second connection bracket 25 at both ends and in the middle thereof with a semicircular shape lacking more than 10 degrees from 180 °, A guide fixing bolt 24 is attached to the second connection bracket 25 in the center of the concrete pile 1. The fixing guide 2a has one end coupled to the hinge 26, Closing guide (2b) coupled by a guide (27);
The cutting device (3) has a main bracket (31) formed in a vertically installed plate shape and having upper and lower ends bent horizontally in the direction of the concrete pile (1); Two upper roller mounting brackets 32 mounted rotatably in holes vertically penetrating the bent upper portion of the main bracket 31 and the other side bent up to a vertical lower portion and mounted with a horizontal upper roller 321; An ascending / descending bracket 33 extending horizontally; Two lower roller mounting brackets 34 which are rotatably mounted on vertically penetrating holes formed in the ascending / descending bracket 33 and whose other side is bent to a vertical lower portion and to which a horizontal lower roller 341 is mounted; A drive motor (35) for rotating any one of the lower rollers (341); Inserted into the hole vertically through the bent lower portion of the main bracket 31 from below and inserted into the compression coil spring 361 and then fixed to the upward and downward bracket 33 to be fixed to the compression coil spring 361 A pair of guide bolts (36) for applying a compressive force; A lifting and lowering shaft 371 which is fixed at the upper end of the main bracket 31 by a vertical tube to a lifting bracket 33 at the lower end and a clamp mounting rib 372 extending upward from the upper end of the main bracket 31 A grip link 374 whose one end is rotatably connected and the other end is formed with a knob 373 and a position where the upper end of the ascending and descending axis 371 is spaced apart from the clamp mounting rib 372 of the handle link 374 And a connecting link 375 rotatably connected at both ends thereof, respectively; A rotation bracket 382 rotatably connected to a lower bent end of the main bracket 31 by a fixing bolt 381 and a rotation bracket 382 fixed to one side of the rotation bracket 382 and the other side of the main bracket A spring 383 which is fixed to the horizontally bent lower end of the rotation bracket 381 and rotates the other side of the rotation bracket 382 on which the fixing bolt 381 is mounted in the direction of the concrete pile 1; A grinder 38 mounted and fixed to the bottom surface and having a circular rotating cutting edge 384; The cutting edge 384 of the grinder 38 is extended from the other end of the rotary bracket 382 to which the fixing bolt 381 of the rotary bracket 382 is attached so that the cutting edge 384 of the grinder 38 is pressed against the inner surface of the concrete pile 1 And a limit switch (39) which is operated by a grounding bar (391) which is in close contact with an outer diameter surface to operate the driving motor (35) so that the cutting device (3) moves along the guide (2) Concrete file cutting device. The motorcycle according to claim 1, further comprising a non-slip packing (342) mounted along a circular surface in close contact with the lower rail (22) on the lower roller (341) rotated by the drive motor (35) Concrete pile cutting device for basic use. The apparatus according to claim 1 or 2, wherein the main bracket (31) and the lifting bracket (33) on which the upper roller mounting bracket (32) and the lower roller mounting bracket (34) And a curved guide slot 311 about the center of rotation of the lower roller mounting bracket 34;
Wherein the upper roller mounting bracket (32) and the lower roller mounting bracket (34) have a guide protrusion (322) inserted into the guide slot (311).

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