KR100859871B1 - Disposible bit of attach and remove-type and the anchor constructing method thereof - Google Patents

Abstract

The present invention relates to a disposable detachable bit and an anchor construction method using the detachable bit, and more particularly, to a disposable detachable bit and an anchor construction method using the same. An engaging protrusion formed at a predetermined spacing in a flange portion of the main body; An insertion protrusion formed to protrude in a cylindrical shape from the inside of the flange portion of the main body and inserted and coupled with the insertion protrusion; And a blade piece that is attached to the front surface of the main body at equal intervals in the form of an inclined surface on one side.

According to the present invention, the casing bit used for perforating the paper through the perforating device is detachably attached to the tip of the casing bit to prevent the residue generated during the perforation of the hole from being introduced into the casing of the perforator, It is possible to perform the perforation operation itself, thereby maximizing the working efficiency, and the insert can maintain an accurate position in the hole.

Perforation device, disposable, bit, casing, detachable, insert, anchor, reinforcing

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a disposable detachable bit and an anchor construction method using the detachable bit,

1 is a perspective view of a disposable detachable bit according to the present invention,

Fig. 2 is an assembled cross-sectional view of a disposable detachable bit according to the present invention coupled to a casing bit; Fig.

3 is an assembled cross-sectional view of a disposable detachable bit according to the present invention,

FIGS. 4A through 4E illustrate a construction procedure for explaining an anchor construction method using a disposable detachable bit according to the present invention. FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

1: insert 100: disposable detachable bit

110: main body 120: engaging projection

130: insertion projection 140:

200: casing bit 300: casing

The present invention relates to a disposable detachable bit and an anchor construction method using the disposable detachable bit. More particularly, the present invention relates to a disposable detachable bit and an anchor construction method for detachably attaching a detachable bit to a tip of a casing bit used for perforating an inner portion of an earth surface through a perforation device. The present invention relates to a disposable detachable bit and an anchor construction method using the detachable bit, and more particularly, to a disposable detachable bit capable of performing a perforation operation by itself while preventing the residue generated in the perforation process from flowing into the casing of the perforation device.

Generally, in the field of various construction and civil engineering works, a hole is formed for inserting an anchor or a ground hardener into the inside of the ground surface, and such a hole is formed through a perforator.

Such a perforating device is a condition for effectively perforating the hole, and is determined by a stronger rotational force and a pressing force, and a discharge output which rapidly discharges soil or rock debris generated in the perforating process to the outside.

On the other hand, in the punching apparatus, the structure of the punching means includes a rotary head operated by hydraulic pressure; A rod or casing mounted vertically below the rotary head; And a bit mounted on the lower end of the rod or casing to substantially perforate the hole. When the drilling operation is performed, the rotary head is rotated by the power source, and a rod or a casing connected to the lower end of the rod or casing rotates In addition, the bit attached to the lower end is rotated to perform the boring operation.

However, in the conventional punching apparatus, there is a problem that, as the bits attached to the tip of the casing are rotated during the drilling of the holes, residues or the like generated in the holes are introduced into the casing and the hole drilling efficiency is lowered.

That is, in the conventional perforating device, a casing bit having a circular hollow pipe structure is formed at the tip end of a casing in which the coupling structure of the perforating means has a circular pipe shape.

Accordingly, there is a problem in that the residue enters through the internal space of the exposed casing bit during perforation of the hole. In spite of this problem, the end of the casing bit can not be opened to the outside The reason for this is that, after the drilling operation of the hole, an operation of filling the anchor body or the filler of the weight body is performed for the purpose of reinforcing the soft foundation into the casing having the shape of the hollow portion, and after the work is performed, Only the casing and the casing bit must be drawn out to the outside.

Particularly, in the existing drilling operation, the cost is reduced due to the double operation in which the casing is firstly inserted into the surface of the earth and then the foreign matter introduced into the casing is removed by using a rod or the like. For example, when the ground of the perforated area has a strength higher than a certain level, an excessive force is required when inserting the casing, so that the casing is consumed in a large amount and the connection portion between the casings There is a problem that the puncturing operation can not be completely performed at the desired point and the third point has to be restarted because the puncturing operation is often broken.

In addition, even if the primary casing work smoothly progresses, foreign substances in the cage can not be completely removed during the operation of the secondary rod, so that the foreign matter adhered to the surface of the anchor body when the anchor body is inserted into the casing, Causing problems.

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 casing bit used for perforating the ground through a perforating device, which is detachably attached to a tip of the casing bit, The present invention provides a disposable detachable bit and an anchor construction method using the disposable detachable bit, which can maximize work efficiency by allowing perforation work to be carried out while preventing entry of the bit.

It is another object of the present invention to provide a disposable detachable bit and an anchor construction method using the disposable bit for enabling an insert to maintain an accurate position in a hole.

According to an aspect of the present invention,

A body formed in a disc shape and having a flange portion formed along the rear periphery thereof; An engaging protrusion formed at a predetermined spacing in a flange portion of the main body; An insertion protrusion formed to protrude in a cylindrical shape from the inside of the flange portion of the main body and inserted and coupled with the insertion protrusion; And a blade piece that is attached to the front surface of the main body at equal intervals in the form of an inclined surface on one side.

Here, the insert is an anchor or a reinforcing bar.

Here, the insertion protrusion is formed with a guiding sloped surface at an end thereof, and a coupling groove is formed in the inner periphery.

Here, the engaging groove is formed with an inclination at the inner periphery of the insertion protrusion.

According to another aspect of the present invention,

The method comprising: forming a perforation hole by piercing the casing with a casing bit having the disposable detachable bit to a predetermined depth; Inserting the injection tube up to the tip of the casing and injecting the injection material under a certain pressure; Inserting an insert into the casing into which the injection material is injected; And injecting the injection material at a predetermined pressure through the injection tube while drawing out the casing and the injection tube when the insertion of the insert is completed.

Wherein the step of inserting the insert into the casing detaches from the casing bit after engaging the insert with the engaging projection of the disposable detachable bit.

Also here, the insert is an anchor or a rebar.

Here, the predetermined pressure is 3 to 5 kg / cm 2.

Hereinafter, the configuration of the disposable detachable bit according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

FIG. 1 is a perspective view of a disposable detachable bit according to the present invention, FIG. 2 is an assembled cross-sectional view of a disposable detachable bit according to the present invention coupled to a casing bit, Fig.

1 to 3, the disposable detachable bit 100 according to the present invention includes a main body 110, a coupling protrusion 120, an insertion protrusion 130, and a blade piece 140 .

First, the main body 110 is formed in a disk shape, and a flange portion 111 is formed along the rear periphery thereof.

The engaging projections 120 are formed on the flange 111 of the main body 110 at predetermined intervals.

The insertion protrusions 130 are formed to protrude in a cylindrical shape from the inside of the flange portion 111 of the main body 110, so that the insert 1 is press-fitted. The insertion protrusion 130 has a guide sloped surface 131 at its end and a coupling groove 133 at the inner periphery of the insertion protrusion 130. The coupling groove 133 is inclined at an inner periphery of the insertion protrusion 130 And is formed. Herein, the insert 1 is an anchor or a reinforcing bar, and the engaging groove 133 can be selectively formed only when the insert 1 is a reinforcing bar, so that the engaging groove 133 corresponds to the protrusion 1-1 formed on the outer periphery of the reinforcing bar And the engaging groove 133 is formed with an inclination.

On the other hand, the blade pieces 140 are attached to the front surface of the main body 110 at regular intervals in the form of an inclined surface. Each blade piece 140 is connected to the main body 110 at equal intervals toward the center thereof so that the blade tip 140 forms a vertex of each blade piece 140. In the present invention, The present invention is not limited to the structure shown in the embodiment, and various changes can be made without departing from the spirit of the present invention.

The casing bit 200, to which the disposable detachable bit 100 according to the present invention is coupled, has a front surface formed as an opening, a coupling groove 210 formed at an inner surface of the opening, The detachable detachable bit 100 to which a plurality of blade pieces 140 are attached is further detachably coupled to the one side surface through the guide hole 210 so that the detachable detachable bit 100 is inevitably generated in the process of perforating the hole inwardly of the ground surface So that the residue is discharged to the outside through the screw 310 formed integrally with the outer circumferential surface of the casing 300 without flowing into the casing 300.

That is, in the present invention, the casing bit 200 coupled with the casing 300 has a coupling groove 210 formed at an inner peripheral surface thereof with a predetermined spacing interval, and the disposable detachable bit 100 The detachable coupling protrusion 120 is detachably coupled and the front side of the casing bit 200 is sealed with the disposable detachable bit 100.

Hereinafter, an anchor construction method using the disposable detachable bit according to the present invention will be described in detail with reference to FIGS. 1 to 4D.

4A to 4E are construction diagrams for explaining an anchor construction method using the disposable detachable bit according to the present invention.

Referring to FIGS. 1 to 4E, first, as shown in FIG. 4A, only the casing 300 having the disposable detachable bit 100 and the casing bit 200 coupled thereto is pierced to a predetermined depth in the ground, ). At this time, the ground is general slope, slope, sandy gravel and omnivorous layer, slope section with joint and joint surface, section with groundwater flow, soft ground. Further, when the hole is drilled, the residue is discharged to the outside through the screw 310 of the casing 300.

4B, the injection tube 105 connected to the injection pump (not shown) is inserted to the tip of the casing 300, and the injection material (milk croutting or the like) is pressurized at a pressure of 3 to 5 kg / do.

When the injection of the injection material is completed, an insert 1 such as an anchor or a reinforcing bar is inserted into the casing 300 as shown in Figs. 4C and 4D. At this time, when the insert 1 is inserted, the end of the insert 1 is engaged with the engaging projection 120 of the disposable detachable bit 100, and a force is applied in the inserting direction so that the disposable detachable bit 100 ).

Then, as shown in FIG. 4E, the injection material is injected at a pressure of 3 to 5 kg / cm 2 through the injection tube 105 while slightly drawing out the casing 300 and the injection tube 105.

Accordingly, in the present invention, the front of the casing bit 200 is sealed with the disposable detachable bit 100, so that the efficiency of the perforation operation is enhanced. This is because the casing bit 200 connected to the casing 300 during the perforation of the hole rotates When the disposable detachable bit 100 coupled to the distal end of the disposable detachable bit 100 rotates, the teeth piece 140 formed on one side of the disposable detachable bit 100 rotates at the same time so that the puncturing operation can be performed more quickly do.

Even if the residue is generated in the hole drilling operation, the generated residue is not introduced into the casing 300 at all by the casing bit 200, but is discharged only through the screw 310 integrally formed on the outer circumferential surface thereof Respectively.

Therefore, according to the present invention, there is no residue or the like in the casing 300 after the hole is punched, so that it is not necessary to separately discharge the residue as in the conventional art.

When the insert 1 is inserted into the internal space of the casing 300 during the insertion operation of the insert 1 such as an anchor, a reinforcing bar or the like, which is performed after the hole drilling operation, the tip of the insert 1 is moved downward, Detachable bit 100 detachably connected to the tip of the detachable detachable bit 100 and is separated from the casing bit 200 so that the inserter 1 can be easily inserted into the casing 100 after the puncturing operation It is possible to input.

Also, since the disposable detachable bit 100 is detached while being held in engagement with the insert 1 and the disposable detachable bit 100 is fixed to the bottom of the hole due to the weight of the insert 1, It is possible to maintain an accurate position in this hole.

According to the disposable detachable bit and the anchor construction method using the disposable detachable bit as described above, a coupling groove is formed at the inner side of the tip of a casing bit having a front surface as an opening portion, The disposable bit is detachably coupled to the opening of the casing bit so that the residue generated during the perforation process of the hole is prevented from being introduced into the casing of the perforation device, By eliminating the rod work, the efficiency of the work can be maximized.

In addition, according to the present invention, the disposable detachable bit is detached while being held in engagement with the insert, and the disposable detachable bit is fixed to the bottom of the hole due to the weight of the insert, so that the insert can maintain its correct position in the hole.

And the perforation operation itself is carried out together with the casing bit by the blade reformation formed on one side of the disposable bit, so that the efficiency of the perforation operation can be simultaneously enhanced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

Claims (8)

A body formed in a disc shape and having a flange portion formed along the rear periphery thereof; An engaging protrusion formed at a predetermined spacing in a flange portion of the main body; An insertion protrusion formed to protrude in a cylindrical shape from the inside of the flange portion of the main body and inserted and coupled with the insertion protrusion; And a blade piece attached to the front surface of the main body at regular intervals in a shape of a sloped side at one side thereof. The method according to claim 1, The insert, Wherein the detachable bit is an anchor or a reinforcing bar. 3. The method of claim 2, The insertion protrusion Wherein a guide slope is formed at an end thereof, and a coupling groove is formed at an inner periphery thereof. The method of claim 3, The coupling groove And is formed with an inclination at the inner periphery of the insertion protrusion. 5. An anchor construction method using a disposable detachable bit according to any one of claims 1 to 4, Forming a perforation hole by piercing the casing bit having a disposable detachable bit to a predetermined depth using a casing coupled to the casing bit; Inserting the injection tube up to the tip of the casing and injecting the injection material under a certain pressure; Inserting an insert into the casing into which the injection material is injected; And And injecting the injection material at a predetermined pressure through the injection tube while drawing out the casing and the injection tube when the insertion of the insert is completed. 6. The method of claim 5, The step of inserting the insert into the casing comprises: Wherein the insert is detached from the casing bit after engaging with the engaging projection of the disposable detachable bit. 6. The method of claim 5, The insert, Characterized in that the anchor is an anchor or a reinforcing bar. 6. The method of claim 5, The constant- 3 to 5 kg / cm < 2 >.

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