KR20210029860A - Packer - Google Patents

Abstract

The present invention relates to a packer. According to an embodiment of the present invention, the packer is an apparatus to be inserted into a punched hole, into which a reinforcing member is inserted for reinforcing the ground, and to prevent grouting or water from leaking to the outside from the punched hole, comprising: a mainframe unit which forms an insertion space, into which the reinforcing member is inserted in a vertical direction, and a filled space, which is separated from the insertion space and which is filled with a filler material; and a filled unit which is connected to the mainframe unit, and which forms an injection space for the filler material to fill the filled space. The filler material includes a first filler material and a second filler material which is different from the first filler material. The filled unit can include: a first filled unit which forms a first injection space which stores the first filler material; and a second injection space which is separated from the first injection space and which stores the second filler material.

Description

Packer

The present invention relates to a packer, and more particularly, to a packer that is inserted into a perforated hole into which a reinforcing material for reinforcing the ground is inserted to limit grouting or water leakage from the perforated hole to the outside.

In general, for order or ground reinforcement of the soft ground, the ground reinforcement method by the chemical solution injection method is used.

In particular, in the tunnel excavation work, after tunnel excavation, after the tunnel excavation, that is, in the rock in the tunnel, a perforation hole is formed in the radial direction to prevent relaxation of the excavation surface, The reinforcement grouting method is applied in which reinforcement is purchased and grouting is performed.

In this case, the reinforcing material and grouting buried in the perforated hole fall out of the perforated hole by gravity, thereby causing a problem that an empty space is formed in the perforated hole.

In order to solve this problem, a method of filling the grouting after closing the entrance region of the drilling hole by injecting a rapidly hardening filler into the entrance region of the drilling hole has been used.

However, in the case of injecting the filler in the above manner, there is a problem that the filler is excessively injected or a too small amount is injected due to an unskilled operation of the operator, so that good quality grouting cannot be formed.

In addition, the operator spends a lot of time closing the entrance area of Cheongonghong through the filler, and the quality of grouting depends on the operator's work skill level, so the operator's high work skill level is required.

On the other hand, the Korean Utility Model Registration 20-0214302 (2000.12.08.Registration) announces a double air packer for grouting.

However, in that air is injected to seal the perforated hole, there is a disadvantage that a separate air injection device such as an air compressor is required.

The present invention is to solve the above problems, and is to provide a packer through which an operator can easily seal a perforated hole.

The problem to be solved by the present invention is not limited to the above-described problems, and problems that are not mentioned will be clearly understood by those of ordinary skill in the art from the present specification and the accompanying drawings. .

The packer according to an embodiment of the present invention is a device that is inserted into a perforation hole into which a reinforcing material for reinforcing the ground is inserted to limit grouting or leakage of water from the perforated hole to the outside, wherein the reinforcing material is inserted in the height direction And a main body partitioned from the insertion space and forming a filling space into which a filling material is filled. And a filling unit connected to the main body and forming an injection space so that a filling material can be injected onto the filling space, wherein the filling material includes a first filling material and a second filling material different from the first filling material, The filling portion includes a first filling portion defining a first injection space in which the first filling material is stored, and a second filling portion partitioned with the first injection space and forming a second injection space in which the second filling material is stored. can do.

According to the packer according to an embodiment of the present invention, there is an advantage that the operator can easily seal the perforated hole.

The effects of the present invention are not limited to the above-described effects, and effects that are not mentioned will be clearly understood by those of ordinary skill in the art from the present specification and the accompanying drawings.

1 is a schematic perspective view of a packer according to an embodiment of the present invention.
2 is a schematic cross-sectional perspective view of a packer according to an embodiment of the present invention.
Figure 3 is a schematic partial perspective view for explaining the rotation of the packer according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention can add, change, or delete other elements within the scope of the same idea. Other embodiments included within the scope of the inventive concept may be easily proposed, but this will also be said to be included within the scope of the inventive concept.

The packer according to an embodiment of the present invention is a device that is inserted into a perforation hole into which a reinforcing material for reinforcing the ground is inserted to limit grouting or leakage of water from the perforated hole to the outside, wherein the reinforcing material is inserted in the height direction And a main body partitioned from the insertion space and forming a filling space into which a filling material is filled. And a filling unit connected to the main body and forming an injection space so that a filling material can be injected onto the filling space, wherein the filling material includes a first filling material and a second filling material different from the first filling material, The filling portion includes a first filling portion defining a first injection space in which the first filling material is stored, and a second filling portion partitioned with the first injection space and forming a second injection space in which the second filling material is stored. can do.

In addition, the position of the filling portion is moved by an external force, and pressurizes the filling material injected into the injection space to discharge the filling material from the injection space into the filling space. The unit includes a first discharge unit moving on the first injection space and a second discharge unit moving on the second injection space, and the first discharge unit and the second discharge unit may be simultaneously moved by an external force.

In addition, the discharge unit may further include a gripping unit connected to the first discharge unit and the second discharge unit to receive an external force.

In addition, a mixing unit for forming a mixing space in communication with the first injection space and the second injection space; further comprising, the first filling material and the second filling material are mixed with each other in the mixing space, the filling It can be discharged into space.

In addition, the mixing unit may include a mixing body forming the mixing space, and a mixing induction part disposed on the mixing space to induce mixing of the first filler and the second filler.

In addition, the mixing body part is detachable from the mixing inlet and the mixing inlet forming a flow path from the first injection space and the second injection space to the mixing space, and a flow path from the mixing space to the filling space It may be provided with a mixed discharge portion forming a.

In addition, a restraining unit disposed on the filling space and connected to the main body to constrain the mixing unit so that the mixing unit is positioned on the filling space may be further included.

In addition, the filling part, the discharge part, and the mixing part may be rotated on the main body by an external force based on an imaginary axis in the height direction so as to agitate the filling material in the filling space.

Components having the same function within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

1 is a schematic perspective view of a packer according to an embodiment of the present invention, and an outer skin portion to be described below is represented by a dashed-dotted line in order to clearly describe the internal structure.

2 is a schematic cross-sectional perspective view of a packer according to an embodiment of the present invention.

Figure 3 is a schematic partial perspective view for explaining the rotation of the packer according to an embodiment of the present invention.

In the accompanying drawings, in order to more clearly express the technical idea of the present invention, parts that are inferior to the technical idea of the present invention or that can be easily derived from those skilled in the art have been simplified or omitted.

1 to 3, the packer 10 according to an embodiment of the present invention is inserted into a perforated hole into which a reinforcing material for reinforcing the ground is inserted to limit grouting or leakage of water from the perforated hole to the outside. It may be a device that does.

In general, in civil works, reinforcing materials such as rock bolts, soil nails, or anchors are installed in the drilled hole to stabilize the ground.At this time, a method of filling the grouting after closing the entrance area of the drilled hole to fill the drilled hole. Is being used.

At this time, it is very important to close the entrance area of the perforated hole closely.

The packer 10 according to an embodiment of the present invention is installed in the inlet region of the perforated hole to focus on a function of restricting grouting or leakage of water from the perforated hole to the outside.

Here, as an example, the packer 10 is a body portion 100 that is partitioned from the insertion space S1 into which the reinforcing material is inserted and the insertion space S1 in the height direction, and forms a filling space S2 into which the filler is filled. ) Can be included.

As an example, the body portion 100 is a head portion 110 forming an inlet of the insertion space S1, a body portion 120 connected to the head portion 110 and forming the insertion space S1 , It is connected to the lower end of the body portion 120 and is connected to the bottom portion 130 forming the outlet of the insertion space (S1) and the head portion 110 and the bottom portion 130, and the body portion 120 ) To form the filling space (S2) may be provided with an outer skin (140).

For example, the insertion space S1 and the filling space S2 may be partitioned from each other by the body portion 120.

That is, the filling material filled on the filling space S2 to be described below is disposed only on the filling space S2, and cannot be introduced into the insertion space S1 by the body 120.

The reinforcing material may sequentially pass through the head portion 110, the body portion 120, and the bottom portion 130 and are inserted into the insertion space S1 to be disposed in the perforation hole.

Here, as an example, the packer 10 may further include a filling portion 200 connected to the body portion 100 and forming an injection space so that a filling material can be injected into the filling space S2. .

For example, the filling part 200 may be connected to the head part 110, and may be inserted into the filling space S2 through the head part 110.

For example, the filling material capable of sealing the perforation hole may be injected into the injection space.

For example, the filler may include a first filler and a second filler different from the first filler.

For example, the first filler may be a water expander that expands in volume when contacted with water.

For example, the first filler may be water-expandable urethane or bentonite, which is a type of water-inflating agent.

For example, the second filler may be water.

Accordingly, when the first filler and the second filler are in contact and mixed with each other, the filler may expand in volume in the filling space S2 to close the perforated hole.

To this end, the outer skin 140 may be rubber, synthetic resin, fiber, etc. that are expanded by an external force.

Here, as an example, the filling portion 200 is partitioned from the first filling portion 210 and the first injection space S3 forming a first injection space S3 in which the first filling material is stored, and the A second filling part 220 forming a second injection space S4 in which the second filling material is stored may be provided.

For example, the first filling unit 210 and the second filling unit 220 may form the first injection space S3 and the second injection space S4 that are separated from each other and are independent from each other.

For example, the first filling material injected into the first injection space S3 and the second filling material injected into the second injection space S4 are the first filling unit 210 and the second filling unit ( 220) can be isolated from each other without mixing.

Accordingly, the filling may not expand in the first injection space S3 and the second injection space S4.

Here, as an example, the packer 10 is moved in position with respect to the filling part 200 by an external force, and presses the filling material injected into the injection space so that the filling material on the injection space is filled in the filling space ( S2) It may further include a discharge unit 300 for discharging to the top.

For example, the discharge unit 300 may be positioned on the injection space to pressurize the filling material disposed on the injection space to move to the filling space S2.

For example, the discharge unit 300 may be moved downward in the height direction to discharge the filling material injected into the injection space into the filling space S2.

Here, as an example, the discharge unit 300 includes a first discharge unit 310 moving on the first injection space S3 and a second discharge unit 320 moving on the second injection space S4. Can be equipped.

That is, the first filling material injected into the first injection space S3 may be discharged to the filling space S2 by the pressure applied by the first discharge unit 310, and the second injection space ( The second filling material injected onto S4) may be discharged to the filling space S2 by the pressure applied by the second discharge unit 320.

For example, the filling part 200 and the discharge part 300 may be operated on the same principle as a mutual syringe.

The discharge part 300 may be attached to and detached from the filling part 200.

Here, as an example, the first discharge unit 310 and the second discharge unit 320 may be simultaneously moved by an external force.

To explain this in more detail, when an operator applies an external force to the discharge unit 300, the first discharge unit 310 and the second discharge unit 320 are interlocked with each other and move at the same time, so that the first filling material And the second filling material may be discharged into the filling space S2 at the same time.

To implement this, as an example, the discharge unit 300 may further include a gripping unit 330 connected to the first discharge unit 310 and the second discharge unit 320 and receiving an external force from an operator. have.

For example, the gripping part 330 may be connected to upper ends of the first discharge part 310 and the second discharge part 320 exposed to the outside.

Therefore, when the operator grips the gripping part 330 and presses it downward in the height direction, the first discharge part 310 and the second discharge part 320 connected to the gripping part 330 are The first filling unit 210 and the second filling unit 220 are simultaneously moved downward in the height direction so that the first filling material and the second filling material are simultaneously discharged into the filling space S2.

Here, as an example, the packer 10 may further include a mixing unit 400 forming a mixing space S5 communicating with the first injection space S3 and the second injection space S4, and , The first filling material and the second filling material may be mixed with each other in the mixing space S5 and then discharged into the filling space S2.

To explain this in more detail, the mixing unit 400 may be connected to the lower end of the filling unit 200 and accommodates the filling material moving from the injection space in the direction of the filling space S2 to receive the mixing space S5. ) On the first filler material and the second filler material may be mixed with each other and then discharged to the filling space (S2).

If the first filling material and the second filling material are immediately discharged to the filling space S2 without passing through the mixing space S5, the first filling material and the second filling material are not properly mixed with each other. Can occur.

To solve this problem, the mixing unit 400 is disposed on the path from the injection space to the filling space S2, and the first filling material and the second filling material are sufficiently mixed and then discharged to the filling space S2. You can do it.

For example, the mixing unit 400 may be disposed on the filling space S2.

Here, as an example, the mixing unit 400 is disposed on the mixing body 410 forming the mixing space S5 and the mixing space S5 to mix the first and second fillers. It may be provided with a mixing induction unit 420 to induce.

For example, the mixing body 410 may form the mixing space S5 communicating with the injection space and forming an outlet into the filling space S2.

For example, the mixing induction part 420 may be connected to the mixing body part 410 to further induce mixing between the first filler and the second filler introduced into the mixing space S5.

As an example, the mixing induction part 420 may be formed as a perforated plate, and although not shown in the drawing, it may be formed in a screw shape to induce mixing of the first filler and the second filler.

Here, as an example, the mixing body 410 includes a mixing inlet 411 forming a flow path from the first injection space S3 and the second injection space S4 to the mixing space S5, and A mixing and discharging part 413 which is detachable from the mixing inlet 411 and forms a flow path from the mixing space S5 to the filling space S2 may be provided.

Here, as an example, the mixing induction part 420 is disposed between the mixing inflow part 411 and the mixing discharge part 413, so that the mixing inflow part 411 and the mixing discharge part 413 are interconnected. In this case, the mixing inlet 411 and the mixing discharge part 413 may be pressed and fixed on the mixing space S5.

For example, the mixing inlet 411 may form an opening to receive the filling material from the filling portion 200 by a hose connecting the filling portion 200 and the mixing inlet 411.

The hose may be attached to and detached from each of the filling part 200 and the mixing inlet part 411.

Here, as an example, the packer 10 is disposed on the filling space S2 and connected to the main body 100 so that the mixing unit 400 is positioned on the filling space S2. It may further include a restraining portion 500 for restraining the portion 400.

For example, the constraining part 500 may be connected to the body part 120 or the bottom part 130, and forms a constraining space constraining the mixing part 400 so that the mixing part 400 Position movement on the filling space S2 may be restricted.

The mixing part 400 may be inserted into the constraining space and constrained to the constraining part 500 by force fitting with the constraining part 500.

Here, as an example, the filling unit 200, the discharge unit 300, and the mixing unit 400 are virtually charged in the height direction by an external force to stir the filling material in the filling space S2. It may be rotated on the main body 100 based on the axis X.

The virtual axis may mean a central axis of the insertion space S1 in the height direction.

For example, after an operator exerts an external force to discharge the first filling material and the second filling material into the filling space S2, stirring between the first filling material and the second filling material in the filling space S2 is further promoted. When the gripping part 330 is gripped so that the gripping part 330 is rotated about the virtual axis, the filling part 200, the discharge part 300, and the mixing part 400 It may be rotated about the virtual axis in the filling space S2.

In addition, the constraining part 500 connected to the mixing part 400 may also be rotated in conjunction with the mixing part 400.

To implement this, the restraint part 500 may be connected on a connection ring rotatably connected to the body part 120, and when the restraint part 500 receives a rotational force, the connection ring It can be rotated on the body portion 120.

Although not shown in the drawing, the first filling portion 210 and the second filling portion 220 may be rotatably connected to the head portion 110 in a sliding manner, and when receiving a rotational force applied by an operator , It may be slidably rotated on the head part 110 based on the virtual axis.

As a result, the first filling material and the second filling material filled in the filling space S2 are the filling portion 200, the discharge portion 300, the mixing portion 400, and the restraining portion 500 It can be further mixed by receiving the rotational force of.

For example, a water-hardening third filler such as cement or mortar may be filled in the filling space S2.

As a result, when the first filling material and the second filling material are discharged from the injection space to the filling space (S2), the third filling material is mixed with the first filling material and the second filling material to form the perforation hole. It can be tightly sealed.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and it is understood that various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art, and therefore, such changes or modifications should be found to fall within the scope of the appended claims.

100: main body
200: filling part
300: discharge unit
400: mixing part
500: fixed part

Claims (8)

In the packer that is inserted into the perforated hole into which a reinforcing material reinforcing the ground is inserted to limit grouting or water leakage from the perforated hole to the outside,
A body portion defining an insertion space into which the reinforcing material is inserted and a filling space in which the reinforcing material is inserted, and is partitioned with the insertion space; And
Includes; a filling unit connected to the main body and forming an injection space so that the filling material can be injected into the filling space,
The filling material,
Including a first filler and a second filler different from the first filler,
The filling part,
A first filling part forming a first injection space in which the first filling material is stored, and
And a second filling part partitioned from the first injection space and forming a second injection space in which the second filling material is stored,
Packer.
The method of claim 1,
A discharging part which is moved in position relative to the filling part by an external force and pressurizes the filler material injected into the injection space to discharge the filler material from the injection space into the filling space, and further includes,
The discharge unit,
A first discharge unit moving on the first injection space, and
It has a second discharge unit that is moved on the second injection space,
The first discharge unit and the second discharge unit,
Simultaneously moved by external force,
Packer.
The method of claim 2,
The discharge unit,
The first discharge unit and the second discharge unit connected to the further comprising a grip portion receiving an external force,
Packer.
The method of claim 3,
A mixing unit for forming a mixing space in communication with the first injection space and the second injection space; further comprises,
The first filler and the second filler,
After mutually mixing in the mixing space,
Discharged onto the filling space,
Packer.
The method of claim 4,
The mixing unit,
A mixing body forming the mixing space and
It is disposed on the mixing space and has a mixing guide unit for inducing mixing of the first filler and the second filler,
Packer.
The method of claim 5,
The mixed body part,
A mixing inlet part forming a flow path from the first injection space and the second injection space to the mixing space, and
Removable from the mixing inlet portion, and having a mixing discharge portion forming a flow path from the mixing space to the filling space,
Packer.
The method of claim 4,
A restraining part disposed on the filling space and connected to the main body to constrain the mixing part so that the mixing part is fixed in position on the filling space;
Packer.
The method of claim 4,
The filling part, the discharge part, and the mixing part,
To stir the filling material on the filling space,
Rotated on the body part based on a virtual axis in the height direction by an external force,
Packer.

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