KR102338405B1 - Packer - Google Patents

Abstract

The packer according to an embodiment of the present invention is a device that is inserted into a perforated hole into which a reinforcing material for reinforcing the ground is inserted, thereby restricting grouting or water leakage from the perforated hole to the outside, and an insertion space into which the reinforcing material is inserted in the height direction and a body part partitioned from the insertion space and forming a filling space in which a filling material is filled; and a filling part connected to the body part and forming an injection space so that a filling material can be injected into 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 part includes a first filling part forming a first injection space in which the first filling material is stored, and a second filling part partitioning from the first injection space and forming a second injection space in which the second filling material is stored. can do.

Description

Packer {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, thereby restricting grouting or water leakage from the perforated hole to the outside.

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

In particular, in the tunnel excavation work, after tunnel excavation, a drilling hole is formed in the radial direction to prevent relaxation of the excavation surface on the excavation surface of the tunnel, that is, on the rock in the tunnel, and then a rock bolt, a nail nail and an anchor in the drilling hole. Reinforcement grouting method in which reinforcement material is purchased and grouting is performed is applied.

In this case, the reinforcing material and the grouting embedded in the perforated hole are dropped to the outside of the perforated hole by gravity, thereby causing a problem in which 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 area of the drilling hole by injecting a rapidly hardening filler into the inlet area of the drilling hole is used.

However, when the filler is injected in the same way as described above, the filler is injected excessively or a too small amount is injected due to the unskilled work of the operator, thereby causing a problem in that good quality grouting cannot be formed.

In addition, the operator spends a lot of time in the operation of closing the entrance area of cheongonghong through the filler, and the quality of the grouting depends on the operation skill of the operator, which requires high work skill of the operator.

On the other hand, the Republic of Korea Registered Utility Model No. 20-0214302 (Registered on Dec. 8, 2000) discloses a double air packer for grouting.

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

An object of the present invention is to solve the above problems, and it is an object of the present invention to provide a packer in which an operator can easily seal the perforation hole.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and the problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs 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 perforated hole into which a reinforcing material for reinforcing the ground is inserted, thereby restricting grouting or water leakage from the perforated hole to the outside, and an insertion space into which the reinforcing material is inserted in the height direction and a body part partitioned from the insertion space and forming a filling space in which a filling material is filled; and a filling part connected to the body part and forming an injection space so that the filling material can be injected into 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 part includes a first filling part forming a first injection space in which the first filling material is stored, and a second filling part partitioning from 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 perforation hole.

Effects of the present invention are not limited to the above-described effects, and effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention pertains from the present specification and 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 may add, change, delete, etc. other elements within the scope of the same spirit, and may use other degenerative inventions or the present invention. Other embodiments included within the scope of the present invention may be easily proposed, but these will also be included within the scope of the present invention.

The packer according to an embodiment of the present invention is a device that is inserted into a perforated hole into which a reinforcing material for reinforcing the ground is inserted, thereby restricting grouting or water leakage from the perforated hole to the outside, and an insertion space into which the reinforcing material is inserted in the height direction and a body part partitioned from the insertion space and forming a filling space in which a filling material is filled; and a filling part connected to the body part and forming an injection space so that a filling material can be injected into 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 part includes a first filling part forming a first injection space in which the first filling material is stored, and a second filling part partitioning from the first injection space and forming a second injection space in which the second filling material is stored. can do.

In addition, a discharging unit for discharging the filling material from the injection space into the filling space by being moved relative to the filling portion by an external force and pressing the filling material injected into 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 gripper connected to the first discharge unit and the second discharge unit to receive an external force.

In addition, it further includes; a mixing unit for forming a mixing space communicating with the first injection space and the second injection space, wherein the first filling material and the second filling material are mixed with each other on the mixing space, and then 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 inducing unit disposed on the mixing space to induce mixing of the first filling material and the second filling material.

In addition, the mixing body part is detachable from the mixing inlet and the mixing inlet forming flow paths 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 mixing discharge unit to form a.

In addition, it is disposed on the filling space, is connected to the main body portion constraining portion for constraining the mixing portion so that the mixing portion is fixed in position on the filling space; may further include.

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

Elements 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, the outer skin to be described below in order to clearly explain the internal structure is expressed by a dash-dot line.

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 spirit of the present invention, parts that are not related to the technical spirit 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 the perforated hole into which the reinforcing material for reinforcing the ground is inserted, and grouting or water leakage from the perforated hole is restricted. It may be a device that

In general, in civil engineering works, reinforcement materials such as rock bolts, nail nails, or anchors are installed in the drilling hole to stabilize the ground. this is being used

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

The packer 10 according to an embodiment of the present invention is installed in the inlet area of the drilling hole to focus on the function of limiting grouting or water leakage from the drilling hole to the outside.

Here, as an example, the packer 10 has an insertion space S1 into which the reinforcement is inserted in the height direction and a filling space S2 which is partitioned from the insertion space S1 and filled with the filling material 100. ) may be included.

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

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

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

The reinforcing material may sequentially penetrate the head 110 , the body 120 and the bottom 130 and be 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 part 200 connected to the body part 100 and forming an injection space so that the 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 filler capable of sealing the perforation hole may be injected onto the injection space.

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

For example, the first filler may be a water expanding agent that expands in volume when in contact with water.

For example, the first filler may be water expandable urethane or bentonite, which is a kind of water expander.

For example, the second filler may be water.

Accordingly, when the first filling material and the second filling material are in contact with and mixed with each other, the filling material may expand in volume in the filling space S2 to seal the perforation hole.

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

Here, as an example, the filling part 200 is partitioned from the first filling part 210 forming the first injection space S3 in which the first filling material is stored and the first injection space S3, 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 part 210 and the second filling part 220 may form the first injection space S3 and the second injection space S4 spaced apart and independent from each other, respectively.

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 part 210 and the second filling part ( 220) can be isolated without mixing with each other.

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

Here, as an example, the packer 10 is moved with respect to the filling part 200 by an external force, and pressurizes the filling material injected into the injection space to put the filling material on the injection space into the filling space ( S2) may further include a discharge unit 300 for discharging upward.

For example, the discharge unit 300 may be configured to move into the filling space S2 by pressing the filling material disposed on the injection space by being moved in the position of the injection space.

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 in the first injection space S3 and a second discharge unit 320 moving in the second injection space S4. can be provided

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

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

The discharge unit 300 may be detachably attached to the filling unit 200 .

Here, for 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 simultaneously discharged onto the filling space S2.

To implement this, as an example, the discharge unit 300 may further include a holding 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 gripper 330 may be connected to upper ends of the first discharge unit 310 and the second discharge unit 320 exposed to the outside.

Accordingly, when an operator grips the gripper 330 and presses it downward in the height direction, the first discharge unit 310 and the second discharge unit 320 connected to the gripper 330 are The first filling part 210 and the second filling part 220 may be simultaneously moved downward in the height direction so that the first filling material and the second filling material are discharged to the filling space S2 at the same time.

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 accommodate the filling material moving from the injection space to the filling space S2 in the mixing space S5. ) may be configured such that the first filling material and the second filling material are mixed with each other and then discharged to the filling space (S2).

If the first filling material and the second filling material are discharged directly into 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. This can happen.

To solve this, the mixing part 400 is disposed on the path from the injection space to the filling space S2, and after the first filling material and the second filling material are sufficiently mixed, it is discharged into the filling space S2. can make it happen

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 and the mixing space S5 forming the mixing space S5 to mix the first and second fillers. A mixing induction unit 420 for inducing may be provided.

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 inducing part 420 may be connected to the mixing body part 410 to further induce mixing between the first filling material and the second filling material introduced into the mixing space S5.

For example, the mixing inducing unit 420 may be formed of a perforated plate, and although not shown in the drawing, may be formed in a screw shape to induce mixing of the first and second fillers.

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 The mixing inlet 411 and detachable may include a mixing outlet 413 forming a flow path from the mixing space S5 to the filling space S2.

Here, as an example, the mixing induction part 420 is disposed between the mixing inlet 411 and the mixing outlet 413, and the mixing inlet 411 and the mixing outlet 413 are interconnected. In this case, it may be fixed on the mixing space S5 by being pressurized by the mixing inlet 411 and the mixing outlet 413 .

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

A hose may be detachably attached to 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 part 400 is fixed in position on the filling space S2. It may further include a restraining unit 500 constraining the unit 400 .

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

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

Here, as an example, the filling part 200 , the discharge part 300 and the mixing part 400 are virtual virtual machines in the height direction by an external force so as to agitate the filling material in the filling space S2 . It may be rotated on the body part 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 the operator applies an external force to discharge the first and second fillings into the filling space (S2), agitation between the first filling and the second filling is further enhanced in the filling space (S2) When the gripper 330 is gripped to rotate the gripper 330 based on the virtual axis, the filling part 200, the discharge part 300 and the mixing part 400 are It may be rotated based on the virtual axis in the filling space (S2).

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

To implement this, the restraining part 500 may be connected to a connecting ring rotatably connected to the body part 120 , and when the restraining part 500 receives rotational force, the connecting ring is the It may be rotated on the body part 120 .

Although not shown in the drawings, the first filling part 210 and the second filling part 220 may be rotatably connected on the head part 110 in a sliding manner, and when the rotational force applied by the operator is transmitted , may be slidably rotated based on the virtual axis on the head 110 .

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

For example, on the filling space S2, a water-curable third filling material such as cement or mortar may be filled.

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 sealed more tightly.

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 is intended that such changes or modifications will be apparent to those skilled in the art, and therefore fall within the scope of the appended claims.

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

Claims (8)

In the packer which is inserted into the perforated hole into which the reinforcing material for reinforcing the ground is inserted to limit the grouting or water leakage from the perforated hole to the outside,
a main body forming an insertion space into which the reinforcing material is inserted in a height direction and a filling space partitioned from the insertion space and filled with a filling material; and
and a filling part connected to the main body and forming an injection space so that a filling material can be injected into the filling space.
The filling is
a first filling material and a second filling material different from the first filling material;
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;
The body part,
a body portion forming the insertion space; and
and an outer skin that surrounds the body and is spaced apart from the body to form the filling space,
The reinforcing material inserted into the insertion space,
It is surrounded by the body and does not come into contact with the outer skin,
It further includes; a discharging part which is moved relative to the filling part by an external force and pressurizes the filling material injected into the injection space to discharge the filling material in the injection space into the filling space,
The discharge unit,
a first discharge unit moving on the first injection space; and
and a second discharge unit moving on the second injection space;
The first discharge unit and the second discharge unit,
are simultaneously moved by an external force,
The discharge unit,
Further comprising a gripper connected to the first discharge unit and the second discharge unit to receive an external force,
It further includes; a mixing unit for forming a mixing space communicating with the first injection space and the second injection space,
The first filling material and the second filling material,
After mixing with each other in the mixing space,
discharged onto the filling space,
It is disposed on the filling space, and is connected to the main body to constrain the mixing part so that the mixing part is fixed in position on the filling space; further comprising:
packer.
delete delete delete The method of claim 1,
The mixing unit,
a mixed body portion forming the mixing space; and
and a mixing inducing part disposed on the mixing space to induce mixing of the first filling material and the second filling material;
packer.
6. The method of claim 5,
The mixed body part,
a mixing inlet forming a flow path from the first injection space and the second injection space to the mixing space; and
It is detachable from the mixing inlet and having a mixing outlet forming a flow path from the mixing space to the filling space,
packer. delete According to claim 1,
The filling part, the discharge part and the mixing part,
to stir the filling on the filling space,
rotated on the body part based on an imaginary axis in the height direction by an external force,
packer.

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