KR102405317B1 - Pile cutting apparatus - Google Patents

Abstract

A file cutting device is disclosed. The pile cutting device of the present invention includes a first guide part for guiding the rotational movement and a monorail part formed on the lower part, and a ring-shaped cutting plane setting part for setting a cutting reference plane by tightening the construction pile; a rotating member formed with a length corresponding to an arc of a certain angle with respect to the cutting surface setting unit, moving along the first guide unit, and coupled to a cutting unit for cutting the file; and a rail moving unit coupled to both sides of the rotating member and movably coupled to the monorail unit.

Description

Pile cutting apparatus

The present invention relates to a file cutting device.

A pile is a structure buried in the ground to reinforce the strength of the soft ground in construction such as a building.

By constructing the pile, the pile supports the building instead of the soft ground, so the strength of the support base intended by the builder can be obtained.

After the pile is buried, the operation of cutting the top (head) of the pile to equalize the height of the plurality of piles is involved.

The file is cut along the circumference of the file using a circular rotary cutter.

The setting of the cut surface of the file can be done manually, but the accuracy is too low, which is inefficient.

The setting of the file cut surface may use an annular clamp. The inner circumferential surface of the clamp is in close contact with the file and serves to firmly fix the file and the clamp, and along the outer circumferential surface, the cutter moves in the circumferential direction to cut the file.

Although this conventional cutting device has the effect of accurately setting the cutting surface of the file, it has a disadvantage in that it has a significant weight for an individual to easily move the device and combine it with the file due to its structure.

In addition, the conventional cutting device was custom designed for a file of a specific size, so it was difficult to apply it to a file of various sizes.

The technical problem to be solved by the present invention is to provide a file cutting device with a simplified structure, applicable to files of various sizes, and stable work and installation.

In order to solve the above technical problem, the pile cutting device according to an embodiment of the present invention includes a rotation guide part for guiding the rotational movement and a monorail part formed in the lower part, and tightens the construction pile to set the cutting reference plane. cutting plane setting unit; a rotating member formed with a length corresponding to an arc of a certain angle with respect to the cutting surface setting unit, moving along the rotating guide unit, and coupled to a cutting unit for cutting the file; and a rail moving part coupled to both sides of the rotating member and movably coupled to the monorail part, wherein the rotating guide part has a groove into which a part of the rotating member is inserted along a circumference at a central position of the outer circumferential surface. and the monorail part is coupled to a shape protruding downward by a predetermined length from the front end of the lower surface of the rotation guide part, and the rotation member is inserted into the groove formed in the rotation guide part to be coupled to the rotation guide part, and the rail moving part may include a yaw-shaped guide-shaped portion to which the monorail portion is inserted and coupled, and a portion extending outwardly therefrom and coupled to a portion of a lower surface of the rotation member that is not inserted into the rotation guide portion.

In one embodiment of the present invention, at least two bolt fixing parts installed at the same angular interval on the upper part of the cut surface setting part; and adjusting bolts each through-coupled to the bolt fixing part and projecting the same length in the inner direction of the cut surface setting part.

In one embodiment of the present invention, a handle rotatably coupled at both ends of the cutting plane setting unit; further comprising, the handle may have a maximum horizontal distance with the cutting plane setting unit adjusted according to a rotation angle of the handle.

In one embodiment of the present invention, the cut surface setting unit is composed of at least two separate parts, a hinge for rotatably fastening one end of the two separated parts; and a fastening part for fastening or separating the other ends of the two separated parts.

In one embodiment of the present invention, the fastening portion, the first auxiliary fastening portion is respectively installed on the upper surface of the other end of the fastening portion of the cut surface setting portion, to form a mutually concave-convex structure to engage; and a second auxiliary fastening part.

In one embodiment of the present invention, the fastening portion, the engaging portion formed on one surface of the first auxiliary fastening portion; a rotating shaft formed on one surface of the second auxiliary fastening part; a locking ring fastened to the locking part; a fastening control unit for controlling the movement of the locking ring; and a connecting bar spaced apart from the rotation shaft by a predetermined distance and rotatably coupled to the fastening control unit to support the locking ring.

The present invention has the effect of being lightweight due to a simplified structure, applicable to files of various sizes, and capable of stable work and installation.

1 shows a pile cutting device according to an embodiment of the present invention.
Figure 2 shows a partial configuration of a pile cutting device according to an embodiment of the present invention.
Figure 3 is a cross-sectional view of some configuration of the pile cutting device according to an embodiment of the present invention and a comparison of the prior art.
Figure 4 shows a state in which the operator uses the pile cutting device according to an embodiment of the present invention.
Figure 5 shows the state of fastening or unfastening the pile cutting device according to an embodiment of the present invention.
Figure 6 shows the operation of some configuration of the pile cutting device according to an embodiment of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a pile cutting device 100 according to an embodiment of the present invention.

Referring to FIG. 1 , the file cutting device 100 according to an embodiment of the present invention includes a cutting surface setting unit 110 , a rotating member 120 , a rail moving unit 122 , a cutting unit 130 , and a handle 140 . , it may include a bolt fixing part 150 , a hinge part 160 and a fastening part 170 .

The cut surface setting unit 110 may have a ring-shaped structure corresponding to the size of the pile 200 . Specifically, the cut surface setting unit 110 includes an inner peripheral surface and an outer peripheral surface in close contact with the pile 200, and is formed to a predetermined thickness between the inner peripheral surface and the outer peripheral surface, and an upper surface and a lower surface thereof may be formed.

The inner circumferential surface of the cut surface setting unit 110 is composed of a flat surface corresponding to the outer circumferential surface of the pile 200 .

A rotation guide unit 112 may be formed on the outer peripheral surface of the cut surface setting unit 110 .

A bolt fixing part 150 , a hinge part 160 , and a fastening part 170 may be coupled to the upper surface of the cut surface setting part 110 .

A monorail unit 114 may be formed on a lower surface of the cut surface setting unit 110 .

The cutting plane setting unit 110 may be closely coupled to the outer peripheral surface of the pile 200 to form a cutting reference plane.

The cut surface setting unit 110 may be made of a lightweight aluminum material.

The cutting plane setting unit 110 includes a rotation guide unit 112 and a monorail unit 114 .

The rotation guide unit 112 may be in the shape of a groove formed to a predetermined depth along the circumference at a central position of the outer peripheral surface of the cut surface setting unit 110 .

The rotation member 120 may be inserted into the rotation guide unit 112 to guide the movement of the rotation member 120 on a circular path.

The monorail unit 114 is coupled to the front end of the lower surface of the cut surface setting unit 110 and may have a ring shape.

The monorail unit 114 may be coupled to the rail moving unit 122 so that the rail moving unit 122 moves along a circular path along the monorail unit 114 .

The cut surface setting unit 110 including these components may be formed in a ring shape having a cross section of the letter 'ㄹ' without the '-' at the bottom as a whole.

The rotating member 120 may be formed to have a length enough to draw an arc of a predetermined angle with respect to the pile cutting device 100 .

A part of the rotating member 120 may be inserted into the rotation guide unit 112 and the other part may protrude to the outside to be combined with other components.

A rail moving part 122 for cutting the pile 200 , the cutting part 130 , and the handle 140 may be coupled to the rotating member 120 .

In an embodiment of the present invention, the rotating member 120 may protrude from both ends to the outside by a predetermined area.

At the upper end of the protruding part, a 'L'-shaped bracket that mediates the coupling of the handle 140 may be installed. A fastening hole is formed at the upper end of the bracket so that both ends of the 'C'-shaped handle 140 can be rotatably through-coupled.

The cut portion 130 may be coupled to the lower end of one side of the protruding portion. The cutting unit 130 may be coupled to be able to rotate in the yaw direction based on the coupled position, so that the interval between the cutter and the file 200 may be adjusted.

The cutting unit 130 has a built-in spring for pressing the cutter forward, so that the file 200 can be cut while advancing a predetermined distance from a point set by the operator.

Rail moving parts 122 may be coupled to the lower surfaces of both ends of the rotating member 120 .

The coupling form of the rotating member 120 can be seen in more detail with reference to the angle in FIG. 2 and the cross-sectional view of FIG. 3B . 3B is a cross-sectional view taken along line A-A' of FIG. 2 . In this cross-sectional view, a protrusion for coupling with the handle 140 and the like is omitted for convenience of description.

The rail moving part 122 does not have to be formed to have a length encompassing all of the length of the rotating member 120 . As shown in the figure, the rail moving part 122 is sufficient if only the length required for fastening is formed at both ends of the rotating member 120 .

A cross-section of the rail moving unit 122 may be similar to that of the cutting surface setting unit 110 . However, the rail moving part 122 has a groove corresponding to the rotation guide part 112 of the cutting plane setting part 110 facing the upper part, so the cross section of the cutting plane setting part 110 is rotated 90 degrees clockwise. .

That is, the rail moving part 122 may be composed of a part for coupling with the rotating member 120 and a part for guiding the monorail part 114 .

The rail moving part 122 moves in a circular orbit along the monorail part 114 and gives stability to the circular orbit movement of the rotating member 120 . Specifically, when there is only the rotating member 120, the rotating member 120 may receive a bending force in the pitching direction. By adding the rail moving part 122 to the rotating member 120, the pitching direction Structural stability that suppresses warpage is given.

In addition, the structural characteristics of the rotating member 120 and the rail moving part 122 have the following advantages compared to the prior art.

Figure 3a shows a cross section of a partial configuration of the pile cutting device 100 according to the prior art, Figure 3b shows a cross section of a partial configuration of the present invention corresponding to the partial configuration according to an embodiment of the present invention.

Referring to FIG. 3 , in the prior art, rails were formed on both upper and lower sides in order to couple the rotating member 20 to the cut surface setting unit 10 . That is, the cut surface setting unit 10 includes an upper rail 11 and a lower rail 12 .

The rotary member 20 according to the prior art required an upper rotation guide part 21 and a lower rotation guide part 22 having a shape surrounding each rail in order to correspond to the shape of the rail described above.

In contrast, the pile cutting device 100 according to the present invention performed structural stabilization while installing only one rail at the bottom, and as a result, the material corresponding to the part B and the material corresponding to C were unnecessary compared to the prior art. The present invention achieves the object of weight reduction by taking a simplified structure.

On the other hand, in the drawing shown in FIG. 3, the rotation member 120 of the present invention is shown to protrude more to the left, which is a part for coupling with other components, which is also required in the prior art. For convenience of description in FIG. 3 , the illustration is only omitted.

The handle 140 is disposed to form a predetermined angle with the cut surface, and may have a 'C' shape.

Both ends of the handle 140 are coupled to the rotating member 120 so as to adjust the angle until they are parallel to the cut surface.

In other words, the maximum horizontal distance of the handle 140 with the cut surface setting unit 110 may be adjusted according to the rotation angle. Here, 'maximum' is intended to refer to the farthest part of the cut plane setting unit 110 among all parts of the handle 140, and the 'horizontal distance' is the horizontal distance between the handle 140 and the cutting plane setting unit 110. . To put it simply, it is the distance on the horizontal plane between the rod part held by hand and the cutting plane setting unit 110 .

The operator lowers the angle of the handle 140 by applying downward force as shown in FIG. 4, and then adjusts the rotation member 120 to rotate along the path of the rotation guide unit 112 while holding the handle 140 to turn the file ( 200) can be cut.

When the handle 140 is used, the operator can move away from the cutting point as compared to working by directly holding the cutting unit 130 , thereby enabling safer work.

The bolt fixing unit 150 may be installed at least two or more at the same angular interval above the cutting surface setting unit 110 . For example, four bolt fixing units 150 may be installed at intervals of 90 degrees, two at intervals of 180 degrees, and six at intervals of 60 degrees.

In one embodiment of the present invention, three bolt fixing parts 150 are installed at intervals of 120 degrees.

The installation of the bolt fixing unit 150 on the cutting surface setting unit 110 is because the upper surface of the cutting surface setting unit 110 is flat and does not interfere with the movement of the rotating member 120 .

The bolt fixing part 150 has a substantially rectangular parallelepiped shape and may include a coupling hole formed toward the pile 200 so that the adjusting bolt 152 can be coupled thereto.

The adjustment bolt 152 is fastened to the coupling hole formed in the bolt fixing unit 150 and protrudes into the cut surface setting unit 110 .

The adjustment bolt 152 makes the end of the adjustment bolt 152 protrude to the inside instead of adjusting the length of the inner circumferential surface of the cut surface setting unit 110, so that the file 200 has a smaller diameter than the inner circumferential surface of the cut surface setting unit 110. The cutting device 100 is installed so that it can be used.

For example, in a pile 200 having a diameter of 600 Φ, after separating the adjustment bolt 152 from the bolt fixing part 150, the inner peripheral surface of the cut surface setting part 110 is fixed in close contact with the outer peripheral surface of the pile 200, In the pile 200 having a diameter of 500 Φ, the file cutting device 100 is fixed by fastening the adjusting bolt 152 to the bolt fixing part 150 and fixing the end of the adjusting bolt 152 to the outer circumferential surface of the pile 200. It is to be installed in the file 200 . In this case, the length at which the adjustment bolt 152 protrudes inward may be 100 Φ.

On the other hand, the cut surface setting unit 110 may be composed of at least two separate parts.

In the embodiment of the present invention, the cut surface setting unit 110 is a cut surface setting unit 110 segmented by a length of about a semicircle, one end of which is rotatably connected by a hinge unit 160, and the other end is connected to the fastening unit 170 . It can be separated or fastened by

This operation of the present invention is represented in FIG. Referring to FIG. 5 , the cutting surface setting unit 110 can open and close the hinge unit 160 centered on the opening and closing operation, so that the operator can easily install the pile cutting device 100 on the pile 200 by himself or herself.

The hinge unit 160 includes a first hinge ring 162 , a second hinge ring 164 , and a hinge bar 166 .

The first hinge ring 162 may be formed at one end of the separated one cut surface setting unit 110 .

The second hinge ring 164 may be coupled to one end of the other separated cut surface setting unit 110 .

The hinge bar 166 is an auxiliary component for coupling the second hinge ring 164 to the other separated cut surface setting unit 110, and the other cut surface setting unit 110 may be coupled to one end of the upper surface. have.

The reason why the hinge part 160 is formed above the cutting plane setting unit 110 is because the upper surface of the cutting plane setting unit 110 is flat and does not interfere with the movement of the rotating member 120 .

6 is an enlarged view for showing the fastening portion 170 of the file cutting device 100 according to an embodiment of the present invention and its operation.

Referring to FIG. 6 , the fastening part 170 includes a first auxiliary fastening part 171 , a second auxiliary fastening part 172 , a locking part 173 , a locking ring 174 , a rotating shaft 175 , and a connecting bar ( 176) and a fastening control unit 177.

The first auxiliary fastening part 171 and the second auxiliary fastening part 172 have a substantially rectangular block shape.

The first auxiliary fastening part 171 may be coupled to the upper surface of the other end of the one separated cut surface setting unit 110 , and the second auxiliary fastening unit 172 is the separated other cut surface setting unit 110 of the second auxiliary fastening unit 172 . The other end may be coupled to the upper surface.

The first auxiliary fastening portion 171 and the second auxiliary fastening portion 172 may be installed adjacent to each other, and abutting portions may be formed in a concave-convex shape.

The first auxiliary fastening part 171 and the second auxiliary fastening part 172 can prevent the risk that the separated cut surface setting unit 110 may be twisted in the process of contacting and tightening each other. That is, the cut surface setting unit 110 formed to have a relatively thin thickness for weight reduction may be vulnerable to bending or twisting due to a narrow contact area. In order to do this, a relatively thick and concave-convex structure is applied to form a structure that is strong against bending or torsion.

The locking part 173 is formed in a ring shape, and is formed on one surface of the first auxiliary fastening part 171 . Specifically, the locking part 173 is formed on the front surface of the first auxiliary fastening part 171 .

The locking ring 174 is a component for hanging on the locking part 173 and may have an approximately 'C' shape.

The rotating shaft 175 is coupled to the front surface of the second auxiliary fastening part 172 and a portion extending to a point protruding a predetermined distance from the front of the second auxiliary fastening part 172 is connected to one end of the fastening control unit 177 and fastened The control unit 177 forms a rotating shaft.

A connecting bar 176 is disposed at a position spaced apart from the rotation shaft 175 by a predetermined distance.

The connecting bar 176 may be through-coupled to the fastening control unit 177 between the other end of the fastening control unit 177 and the rotation shaft 175 .

Since the connecting bar 176 is rotatable with respect to the fastening control unit 177 , the operator can control the angle at which the engaging ring 174 can be fastened to the engaging unit 173 .

The connecting bar 176 may support the locking ring 174 .

The locking ring 174 is coupled through the upper and lower portions of the connecting bar 176, respectively, and may be fixed with a nut.

The fastening control unit 177 may be rotatably coupled to the rotation shaft 175 .

The connecting bar 176 and the connecting ring may be rotated and moved in a straight direction in association with the operation of the fastening control unit 177 .

6A shows a state in which the fastening control unit 177 is rotated counterclockwise. In this case, the locking ring 174 may be disposed in a state in which it can move out from the locking part 173 in the right direction or is bound to the locking part 173 in a form in which movement in the right direction is restricted. When the locking ring 174 does not catch on the locking part 173 only by counterclockwise and clockwise rotation of the fastening control unit 177, the position of the locking ring 174 can be changed by rotating the locking ring 174.

6B shows a state in which the fastening control unit 177 is rotated clockwise in a state in which the locking ring 174 is caught in the locking part 173 . The locking ring 174 may receive a pulling force in the right direction while being caught by the locking part 173 .

The relative length of the fastening control unit 177, the locking ring 174, the connecting bar 176, etc. is preferably set to such a degree that the file 200 can be sufficiently tightened and fixed while the cut surface setting unit 110 separated from each other is fastened. do.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

100: file cutting device
110: cutting plane setting unit
112: rotation guide part
114: monorail part
120: rotating member
122: rail moving part
130: cut part
140: handle
150: bolt fixing part
152: adjustment bolt
160: hinge
162: first hinge ring
164: second hinge ring
166: hinge bar
170: fastening part
171: first auxiliary fastening part
172: second auxiliary fastening part
173: catch
174: catch hook
175: rotation shaft
176: connecting bar
177: fastening control unit
200: file

Claims (6)

An annular cutting surface setting unit including a rotation guide unit for guiding the rotational movement and a monorail unit formed on the lower portion, and setting a cutting reference plane by tightening a construction file;
a rotating member formed with a length corresponding to an arc of a certain angle with respect to the cutting surface setting unit, moving along the rotating guide unit, and coupled to a cutting unit for cutting the file; and
and a rail moving part coupled to both sides of the rotating member and movably coupled to the monorail part;
The rotation guide portion is formed with a groove in which a part of the rotation member is inserted along the circumference at the central position of the outer peripheral surface,
The monorail part is coupled in a shape protruding a certain length downward from the front end of the lower surface of the rotation guide part,
The rotation member is inserted into the groove formed in the rotation guide portion is coupled to the rotation guide portion,
The rail moving part,
A yaw-shaped guide-shaped portion to which the monorail portion is inserted and coupled, and a portion extending outwardly therefrom and coupled to a portion of a lower surface of the rotation member that is not inserted into the rotation guide portion,
The cutting plane setting part consists of at least two separate parts,
a hinge for rotatably fastening one end of the two separated parts; and
Further comprising; a fastening part for fastening or separating the other ends of the two separated parts;
The fastening part,
a first auxiliary fastening part which is respectively installed on the upper surface of the other end fastening part of the cut surface setting part, and engages by forming a mutually concave-convex structure;
a second auxiliary fastening part;
a locking part formed on one surface of the first auxiliary fastening part;
a rotating shaft formed on one surface of the second auxiliary fastening part;
a locking ring fastened to the locking part;
a fastening control unit for controlling the movement of the locking ring; and
A file cutting device comprising a; spaced apart from the rotation shaft by a predetermined distance and rotatably through-coupled to the fastening control unit, and a connecting bar supporting the locking ring.
According to claim 1,
a bolt fixing part installed at least two or more at the same angular interval on the upper part of the cut surface setting part; and
Control bolts each through-coupled to the bolt fixing part and projecting the same length in the inner direction of the cut surface setting part; further comprising
File cutting device, characterized in that.

According to claim 1,
A handle rotatably coupled to both ends of the cut surface setting unit; further comprising
The maximum horizontal distance with the cut surface setting unit is adjusted according to the angle of rotation of the handle
File cutting device, characterized in that.
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