JP2007151386A - Buried plug for closing hole, and hole closing method using the plug - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To skillfully and completely close a hole provided in a structural body of a concrete electric pole or the like, for instance, that has been constructed vertically. <P>SOLUTION: This invention is a plug for the hole provided in a structural body to close the concerned hole, which comprises a shaft-shaped bolt 1, a nut part 57 screwed to this bolt 1, a fastener part 5 having a cylindrical pipe unit 51 for turnably holding the concerned bolt 1 and an arm part 55 for degenerating, when axial compression force is received between the nut part 57 and the pipe unit 51, its axial length, and a buried plug part 7 consisting of an elastic member, interposed between the bolt 1 and the fastener part 5, which can close the hole to be extended in a direction orthogonal to the concerned shaft, when axial compression force is received by the nut part 57 screwed to the bolt 1 due to its rotation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hole closing plug and a hole capable of easily and completely closing a hole provided in a concrete electric pole, for example, standing as a structure and easily checking the state inside the structure. The present invention relates to a hole closing method using a closing plug.

  In recent years, a method for reinforcing an electric pole that reinforces an electric pole by filling a hollow portion of the electric pole with a reinforcing material such as mortar has been widely practiced.

  When reinforcing such a utility pole, it is common to completely fill a hole provided in the utility pole and then fill a reinforcing material such as mortar.

  For example, a hole drilled on the side of a standing electric pole, such as a ground wire outlet (ground hole), a hardware mounting hole (a hole for mounting a scaffolding bolt), or a utility pole drilled for work When the opening is closed, the hole is filled and closed with water-stopping mortar or water-stopping cement. After the hole is closed, the water-stopping mortar used for closing is solidified, and then a reinforcing material (non-shrinking mortar, reinforcing bar, etc.) is put into the hollow part of the electric pole from the top opening of the electric pole. The part is filled with a reinforcing material.

  However, in the case of this construction method, the worker has to wait for the reinforcement work to be interrupted until the mortar used for blocking completely solidifies, which is inefficient. If the filling method or solidification is incomplete, when the mortar for reinforcement is filled in the hollow part of the utility pole, the internal pressure is increased by these mortars, etc., and the plug of the mortar used for occlusion is removed to the outside. There was a risk of leaking mortar.

  In addition, a construction member called a so-called board fastener is known for attaching a device to a hollow wall that is difficult to work from the back side. These insert the board fastener into the hole provided in the wall material, and expand the leg of the board fastener in the hollow part of the wall material, so that the board fastener is fixed to the hollow wall and the device is hooked on this board fastener. To do. Therefore, it cannot be assumed that the board fastener is used for closing the hole, and even if it is used, fluid such as mortar leaks from the gap between the board fastener and the hole, and the hole cannot be closed. Further, the board fastener has a limit in the thickness of the wall to be attached.

Also, when throwing non-shrink mortar from the top opening of the utility pole into the hollow part inside the pole, the non-shrink mortar while visually checking the relationship with the top position of the reinforcing material such as reinforcing bars already put in from the top opening The amount of input required must be adjusted, skill is required, and safety considerations are required due to the work at a high place.
Japanese Patent Application No. 2005-196864 No. 37-29318

  As described above, since the conventional hole closing method uses water-stopping mortar or the like, the reinforcing work of the utility pole must be interrupted until the water-stopping mortar or the like solidifies, and the filling method or solidification In the case of incompleteness, there was a possibility that the reinforcing process would be incomplete. Furthermore, as described above, if the hardware mounting hole is filled with water-stopping mortar or the like and closed, there is a problem that it becomes impossible to attach a scaffold bolt for climbing the utility pole at a later date.

  The present invention has been made in view of the above. The hole can be completely closed in a short time and easily, and the next operation can be performed immediately after the closing and the state inside the structure can be easily checked. An object of the present invention is to provide a hole closing plug and a hole closing method using the hole closing plug.

  In order to solve the above problems, the hole closing embedded plug according to claim 1 is inserted into a hole provided in the structure and closes the hole, and the hole closing embedded plug includes: A plug portion that expands in a direction orthogonal to the central axis and closes the hole when receiving a compressing force in a direction along the central axis direction; and the plug in the direction along the central axis direction of the hole And a compression means for compressing the part.

  In the hole closing plug of claim 1, the hole in the structure can be easily closed in a short time from the front side of the structure, and further, the hole is closed by the expansion of the plug portion by compression, so that the hole is immediately after closing. The following operations can be performed.

  The hole closing embedded plug according to claim 2 is a hole closing embedded plug which is inserted into a hole provided in the structure and closes the hole, and includes a shaft-shaped male screw member, and the male screw member and the screw. A female screw member having a female screw portion to be joined, and a cylindrical tube body that rotatably holds the male screw member, and is interposed between the male screw member and the female screw member. And a plug portion made of an elastic member that expands in a direction orthogonal to the shaft and closes the hole when receiving a force compressing in the axial direction by a female screw portion screwed into the male screw member. And

  In the hole closing embedded plug according to claim 2, the hole in the structure can be easily closed in a short time only by rotating the male screw member from the front side of the structure, and further, by compression from the female screw by the rotation of the male screw member. Since the hole is closed by the expansion of the plug portion, the next operation can be performed immediately after the closing.

  According to a third aspect of the present invention, there is provided the plug for closing the hole according to claim 3, wherein the female screw member has an arm portion for reducing the axial length of the female screw member when receiving a force compressing in the axial direction between the female screw portion and the cylindrical body. It is summarized as having.

  In the hole closing plug of claim 3, when the male screw member receives a force compressing in the axial direction between the female screw part and the cylindrical body, the arm part degenerates its axial length. As a result, the plug portion can be effectively compressed, whereby the plug portion can be expanded in a direction perpendicular to the axis to close the hole.

  According to a fourth aspect of the present invention, there is provided a plug for closing a hole according to claim 4, wherein when the plug is inserted into the hole provided in the structure, at least a part of the outer peripheral surface of the plug is in contact with the inner wall surface of the hole. The gist of the present invention is that it has a size and a shape that cause resistance to the extent that it does not rotate following the rotation of the bolt.

  In the hole closing plug of claim 4, at least a part of the outer peripheral surface of the plug portion comes into contact with the inner wall surface of the hole and causes resistance, so that the bolt can be rotated easily and efficiently. .

  The embedding plug for hole closing according to claim 5 is characterized in that the embedding portion is formed by enlarging a diameter of a part of the embedding portion in the axial direction.

  In the embedding plug for hole closure according to claim 5, since the diameter of a part of the embedding portion in the axial direction is enlarged, the outer peripheral surface of the embedding portion contacts the inner wall surface of the hole at the enlarged portion. Since the resistance is generated, the bolt can be rotated easily and efficiently.

  The embedding plug for hole closure according to claim 6 is characterized in that the embedding portion is provided with a protrusion on the outer peripheral surface of the embedding portion.

  In the plug for closing a hole of claim 6, since the protrusion is provided on the outer peripheral surface of the plug part, the outer peripheral surface of the plug part comes into contact with the inner wall surface of the hole at the protrusion and causes resistance. Therefore, the bolt can be rotated easily and efficiently.

  The embedding plug for hole closing according to claim 7 is characterized in that the embedding portion has a truncated cone shape having a circular bottom surface.

  Since the hole closing plug according to claim 7 has a circular truncated conical shape, it contacts the inner wall surface of the hole at the outer peripheral portion of the circular truncated conical bottom surface of the embedding part, and causes resistance. The rotation can be performed easily and efficiently.

  The embedding plug for hole closing according to claim 8 is characterized in that the elastic member of the embedding portion is formed of either natural rubber or synthetic rubber, or a mixture thereof.

  In the embedding plug for hole closure according to claim 8, since the elastic member of the embedding part is formed of either natural rubber or synthetic rubber, or a mixture thereof, the embedding part is expanded by compression or the expansion. The hole can be closed more efficiently and reliably.

  Claim 9 is a hole closing method using the hole closing embedded plug according to claim 1, wherein the plug portion of the hole closing embedded plug penetrates the hole provided in the structure. The gist of the present invention is a step of press-fitting to a position where it does not, and a step of compressing the plug portion by a compression means, expanding the plug portion in a direction perpendicular to the central axis direction of the hole, and closing the hole.

  In the hole closing method using the hole closing plug of claim 9, the hole in the structure can be easily closed in a short time from the front side of the hole regardless of the depth of the hole of the structure, and further compressed. Since the hole is closed by the expansion of the plug portion due to the above, it is possible to perform the next operation immediately after the closing.

  Claim 10 is a hole closing method using the hole closing plug according to any one of claims 2 to 8, wherein the hole closing plug is embedded in a hole provided in the structure. Press-fitting to a position where the portion does not penetrate the hole, rotating the male screw member and compressing the plug portion in the axial direction by the female screw portion screwed into the male screw member, and by this compression step, the plug portion is And a step of closing the hole by inflating in a direction orthogonal to the central axis direction.

  In the hole closing method using the hole closing embedded plug according to claim 10, the hole in the structure can be easily closed in a short time, and the next operation can be performed immediately after the closing. .

  Claim 11 is a hole closing method using the hole closing embedded plug according to claim 10, wherein the plug portion of the hole closing embedded plug does not penetrate the hole provided in the structure. A step of press-fitting to a position, a step of rotating the male screw member and compressing the plug portion in the axial direction by a female screw portion screwed into the male screw member, and a step of compressing the plug portion perpendicular to the central axis direction of the hole A step of expanding in the direction to close the hole, a step of rotating the male screw member in a direction opposite to the rotation direction and extracting the male screw member from the plug portion, and after extracting the male screw member from the plug portion The present invention includes a step of inserting the male screw member from the opening and screwing the male screw member and the female screw portion again after maintaining the penetration state with the inside of the structure through the opening.

  In the hole closing method using the hole closing embedded plug according to claim 11, the through-hole with the inside of the structure is easily provided even after the hole provided in the structure is firmly closed. In addition, it can be easily closed again.

  Claim 12 is a hole closing method using the hole closing embedded plug according to claim 11, wherein the opening after the male screw member is extracted from the plug part is a hole for checking the state inside the structure. Use as a gist.

  In the hole closing method using the hole closing embedded plug according to claim 12, the opening after the male screw member is removed from the plug portion even after the hole provided in the structure is firmly closed. Can be used as a confirmation hole for confirming the state of the inside of the structure by visual observation or outflow of fluid such as mortar from the inside.

  According to the hole plugging plug and the hole plugging method using the hole plugging plug of the present invention, the holes in the structure can be closed in a short time and easily, and the next operation is performed immediately after the plugging. This makes it possible to check the situation inside the structure.

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

  FIG. 1 is a perspective view showing the structure of a hole closing implant plug 10 according to an embodiment of the present invention. FIGS. It is a figure which shows the 1st process sequence at the time of obstruct | occluding the provided hole. FIG. 6 is a diagram for explaining a state in which the hole is closed in the hole closing plug 10.

  First, the configuration of the hole closing plug 10 will be described with reference to FIG. The hole closing plug 10 includes a bolt 1, a flange 3 and a fastener portion 5 into which the bolt 1 is rotatably fitted, that is, a plug portion 7 into which the fastener portion 5 is inserted, And a washer 9.

  The bolt 1 is slightly longer than the fastener portion 5, the flange 3 and the fastener portion 5 are fixedly provided, and a locking claw 31 is provided on the flange 3. Since the locking claw 31 is press-fitted and locked to the head-side end face of the plug part 7, the flange 3, the fastener part 5 and the plug part 7 are integrated.

  The fastener portion 5 is generally cylindrical and is divided into a cylindrical body 51, a slot 53, an arm portion 55, and a nut portion 57. The arm portion 55 includes four slit-like holes provided in the central axis direction, that is, four arm portions (upper portions) 55 a and arm portions (lower portions) 55 b formed by the groove holes 53. The connecting portion between the portion (upper portion) 55a and the arm portion (lower portion) 55b is provided with a bent portion 59 that is convexly formed outward. That is, the arm portion 55 is thinner than the outer circumferential length of the cylindrical body 51 by the groove width 53 and the groove width of four, and the outer convex portion is processed so that the arm portion (upper portion) is formed. Between 55a and the arm part (lower part) 55b, it is a structure which can be easily expanded outward with the bent part 59 as a vertex.

  Note that the bolt 1 and the fastener portion 5 as the male screw member, or the arm portion 55 and the nut portion 57 of the bolt 1 and the fastener portion 5 constitute compression means for compressing the plug portion.

  The embedding part 7 is formed of a natural rubber having strong elasticity and excellent weather resistance in a substantially cylindrical shape (specifically, a truncated cone shape having a slightly smaller diameter at the tip in the insertion direction). A hole having a diameter substantially the same as or slightly smaller than the outer diameter of the cylindrical body 51 of the fastener portion 5 is formed on the shaft. The cylindrical body 51 of the fastener portion 5 is fitted into this hole.

  In addition, the hardness and external shape of the plug part 7 are changed according to the diameter of the opening 21 drilled in the utility pole. For example, when the diameter of the opening 21 is large, the hardness of the plug portion 7 is increased and the outer diameter and length are increased. At this time, it goes without saying that the outer diameter and thickness of the washer 9 are increased.

  Next, referring to FIGS. 2 to 4, a first processing procedure when the opening 21 formed in the utility pole is closed using the hole closing plug 10 will be described according to the processing procedure. For example, referring to FIG. 11, this first processing procedure is suitable when a hole formed in a portion where the concrete thickness D1 near the utility pole base is thick is closed.

  First, as shown in FIG. 2, the hole closing plug 10 is lightly pushed into the opening 21 by hand, and the hole closing plug 10 is temporarily fixed in the opening 21. The driver D is fitted to the head of 1, and the hole closing plug 10 is driven into the opening 21 with a hammer H to a predetermined depth. Here, the predetermined depth is such that the head of the bolt 1 of the plug 10 for closing the hole is normally hidden from the surface of the utility pole, but when the surface is treated by filling the opening 21 with mortar or the like. It ’s a good idea to push it back slightly.

  Next, the bolt 1 is rotated by the driver D as shown in FIG. By the rotation of the bolt 1, the nut portion 57 of the fastener portion 5 screwed with the bolt 1 is drawn toward the head side of the bolt 1, and a force acts in the drawing direction (compression direction). At this time, the arm portion 55 is thinner than the cylindrical body 51 by four slots 53, and between the arm portion (upper portion) 55a and the arm portion (lower portion) 55b, the bent portion 59 is an apex direction. Therefore, the arm portion 55 starts to expand outward due to the force in the compression direction.

  Since the radius of the bent portion 59 of the expanded arm portion 55 is larger than the inner diameter of the washer 9, the washer 9 inserted and inserted into the bent portion 59 by the expansion of the arm portion 55 has an arm formed by the expansion. The slope of the portion 55 starts to move toward the head side of the bolt 1. This movement of the washer 9 compresses the plug portion 7 between the washer 9 and the flange 3 in the axial direction.

  Subsequently, as shown in FIG. 5, the bending portion 59 presses the inner wall surface 21 a of the opening 21 by the expanding force F <b> 2 of the arm portion 55, but the arm portion 55 expands beyond the radius of the opening 21 by the inner wall surface 21 a. Therefore, the arm part (upper part) 55a starts to bend so as to protrude in the direction opposite to the head of the bolt 1 (the state shown in FIG. 5).

  Due to the bending of the arm part (upper part) 55a, the arm part 55 further compresses the plug part 7 in the axial direction via the washer 9, and the plug part 7 further expands in the radial direction, thereby causing a pressure F1 in the radial direction. To increase.

  The hole closing plug 10 is firmly fixed in the opening 21 by the pressure F1.

  Further, by forming the notch 11 in the bolt 1, for example, when the tip of the bolt 1 protrudes into the hollow portion, the tip portion of the bolt 1 can be easily cut off.

  Next, with reference to FIGS. 6 to 8, a second processing procedure when the opening 23 formed in the utility pole is closed using the hole closing plug 10 will be described according to the processing procedure. This second processing procedure is suitable when, for example, referring to FIG. 11, a hole or a hardware mounting hole drilled in a portion where the concrete thickness D2 near the top of the utility pole is thin is closed.

  First, as shown in FIG. 6, the hole closing plug 10 is lightly pushed into the opening 23 by hand to temporarily fix the hole closing plug 10 into the opening 23. Thereafter, the driver D is fitted to the head of the bolt 1 of the hole closing plug 10 and the hammer H is inserted into the hole closing hole 10 at a predetermined depth, that is, the washer 9 at the tip of the plug 7. Drive until it reaches the hollow part of the utility pole. At this time, if the depth D2 of the opening 23 is measured in advance, the driving amount of the hole closing plug 10 can be reliably grasped.

  Next, the bolt 1 is rotated by the driver D as shown in FIG. By the rotation of the bolt 1, the nut portion 57 of the fastener portion 5 screwed with the bolt 1 is drawn toward the head side of the bolt 1, and a force acts in the drawing direction (compression direction).

  At this time, the arm portion 55 is thinner than the outer peripheral length of the cylindrical body 51 by the groove width 53 and the groove width of four, and between the arm portion (upper portion) 55a and the arm portion (lower portion) 55b. Since the convex portion is processed outward so that the bent portion 59 can be easily expanded outward from the apex, the arm portion 55 expands outward from the bent portion 59 to the apex by the force in the compression direction. Start to open.

  As a result, the four arm portions 55 are expanded in the electric pole hollow portion as shown in FIG. 8, and the arm portion (upper portion) 55a and the arm portion (lower portion) 55b are expanded in four directions outward from the bent portion 59 as a vertex. Then, it is hooked at the inner wall surface of the electric pole hollow portion and the bent portion 59 (shown by a circle in FIG. 10).

  On the other hand, the washer 9 fitted into the bent portion 59 by the expansion of the arm portion 55 is formed by the expansion because the radius of the bent portion 59 of the arm portion 55 is larger than the inner diameter of the washer 9. Begins to move the slope of the arm 55 to the head side of the bolt 1. This movement of the washer 9 compresses the plug portion 7 between the washer 9 and the flange 3 in the axial direction. By this axial compression, the plug portion 7 expands in the radial direction as shown in FIG. 9, and increases the pressure F3 in the radial direction. The hole closing plug 10 is firmly fixed in the opening 23 by the pressure F3.

  In FIG. 9, when pressure P1 is applied to push the hole closing plug 10 from the outside into the electric pole hollow portion, the hole closing plug 10 is pushed in by the radial pressure F3. In FIG. 10, the bent portion 59 of the arm portion 55 hooked on the peripheral portion of the opening 23 with respect to the pressure P2 from the hollow portion side, such as mortar injected into the hollow portion. Is repelled, indicating that the hole closing plug 10 cannot be pushed out in the same manner.

  In addition, although this invention demonstrated the obstruction | occlusion of the hole of the standing electric pole, this invention is not limited to the hole of an electric pole, For example, it can apply also to the hole of arbitrary structures, such as a concrete wall surface. . Moreover, although the case where the shape of the embedding part is a truncated cone has been described, depending on the shape of the hole and the shape of the closed portion (for example, when only half of the hole is closed), the cube, rectangular parallelepiped, the cross-sectional shape is oval, the cross-sectional shape May be semicircular, and the height (depth) of the truncated cone may be appropriately changed according to the depth of the corresponding hole.

  Furthermore, the material of the plug portion is not limited to natural rubber, synthetic rubber or a synthetic body (mixture) thereof, and any material may be selected as long as it has elasticity such as silicon rubber, butyl rubber, or foamed resin thereof. Can do. Such a material is selected depending on the material of the structure (concrete, new building material, wood-based material, etc.) and the pressure received (in this embodiment, mortar filled for reinforcement).

  Further, the shape of the embedding portion may be a truncated cone as in the present embodiment, but for example, it has a shape having a protrusion shape such as a piston ring-shaped rubber ring wound around a cylindrical surface. There may be. Note that it is arbitrary whether the rubber ring is actually wound so as to be tightened or formed integrally in a shape having a protrusion shape in advance.

  Next, referring to FIG. 12 to FIG. 20, a third processing procedure for closing the opening 21 drilled in the utility pole using the hole closing plug 60 and providing a confirmation hole is shown in FIG. Explain according to the procedure. This third processing procedure is, for example, in the case of closing a hole drilled in the vicinity of the injection position of the base mortar when the mortar is put into the utility pole in two steps as is apparent from FIGS. Is preferred.

  The hole closing plug 60 used in this third processing procedure has a truncated cone shape in which the diameter of the plug portion in the insertion direction is extremely small. Further, the hole provided in the central axis may be formed slightly larger.

  First, as shown in FIG. 12, the hole closing plug 60 is lightly pushed into the opening 21 by hand, and the hole closing plug 60 is temporarily fixed in the opening 21. Thereafter, the driver D is fitted to the head of the bolt 1 of the hole closing embedded plug 60, and the hole closing embedded plug 60 is driven into the opening 21 with a hammer H to a predetermined depth. Here, the predetermined depth is such that the head of the bolt 1 of the plug 60 for closing the hole is normally hidden from the surface of the utility pole, but when the opening 21 is filled with mortar or the like and surface treatment is performed, etc. It ’s better to push it a little further.

  Next, the bolt 1 is rotated by the driver D as shown in FIGS. As a result, the four arm portions 63 each expand outward in four directions with the bent portion of the arm portion 63 as a vertex. At this time, since the bending portion 63 presses the inner wall surface of the opening 21 by the expanding force of the arm portion 63, the fastener portion is strongly fixed in the opening 21 by the four arm portions 63.

  On the other hand, by the rotation of the bolt 1, washers at both front and rear ends of the plug portion 70 compress the plug portion 70 in the axial direction. By this axial compression, the plug portion 70 expands in the radial direction as shown in FIG. 15 and increases the pressure in the radial direction. With this pressure, the hole closing plug 60 is firmly fixed in the opening 21.

  Then, the formation procedure of the confirmation hole for the state confirmation inside a structure is demonstrated.

  First, as shown in FIG. 16, the bolt 1 is rotated in the direction opposite to the rotation direction by the driver D, and the bolt 1 is removed from the hole closing plug 60 (see FIG. 17). At this time, the four arm portions 63 of the fastener portion maintain the state in which the inner wall surface of the opening 21 is pressed and fixed even after the bolt 1 is removed due to the plasticity of the metal. Also, the shape of the plug part 70 is a truncated cone having a large diameter on the opening side (outside), and the frictional force between the outer peripheral surface of the plug part 70 and the inner wall surface of the opening 21 is large (because rubber (buried) Due to the frictional force between the plug part 70) and the concrete (inner wall surface), the plug part 70 itself hardly expands in a short time.

  Next, as shown in FIG. 18, the state inside the utility pole is confirmed by visual observation I from the opening 61 after the bolt 1 is removed from the plug portion. This also confirms that the inside and outside of the utility pole are in a penetrating state.

  Subsequently, mortar M is introduced from the top of the utility pole. The mortar M charging state can be confirmed from the opening 61 after the bolt 1 is removed from the plug portion 70 as shown in FIGS. When the mortar M is further introduced, a part of the mortar M flows out from the opening 61 (mortar Ma), and the amount (height) of the mortar M can be accurately grasped. The amount of mortar M to be added thereafter can be accurately set since the current mortar input height is clear.

  Next, as shown in FIG. 20, before the mortar M dries, the bolt 1 is inserted from the opening 61, the bolt 1 is tightened by the driver D, and the bolt 1 and the female thread portion of the fastener portion are screwed again. Thereby, the opening 21 of the utility pole can be easily closed again in a short time.

  As described above, according to the present embodiment, since the hole provided in the utility pole can be easily closed in a short time, and the confirmation hole can be easily provided as appropriate. You can easily check the internal situation.

It is a perspective view which shows the structure of the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the blockade process procedure of the hole using the embedding plug for hole closure of this invention. It is a figure which shows the blockade process procedure of the hole using the embedding plug for hole closure of this invention. It is a figure which shows the blockade process procedure of the hole using the embedding plug for hole closure of this invention. It is a figure which shows the stress in a hole obstruction | occlusion state. It is a figure which shows the procedure in the obstruction | occlusion process of the other hole using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the procedure in the obstruction | occlusion process of the other hole using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the procedure in the obstruction | occlusion process of the other hole using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the stress in the hole obstruction | occlusion state shown in FIG. It is a figure which shows the stress in the hole obstruction | occlusion state shown in FIG. It is a figure which shows the example which used the embedding plug for hole obstruction | occlusion of this invention for the hole obstruction | occlusion of a utility pole. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention. It is a figure which shows the reopening process procedure of the hole obstruct | occluded using the embedding plug for hole obstruction | occlusion of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Bolt 3 ... Flange 5 ... Fastener part 7,70 ... Plug part 9 ... Washer 10 ... Hole plugging plug 20 ... Telephone pole 21,23 ... Opening 31 ... Locking part 51 ... Cylindrical body 53 ... Slot 55 , 63 ... arm part 55a ... arm part (upper part)
55b ... Arm (lower part)
57 ... Nut 59 ... Bend D ... Driver H ... Hammer M ... Mortar

Claims (12)

An embedding plug for hole closing inserted into a hole provided in the structure and closing the hole,
A plug portion that expands in a direction orthogonal to the central axis to close the hole when receiving a force compressing in a direction along the central axis direction of the hole;
Compression means for compressing the plug portion in a direction along the central axis direction of the hole;
An embedding plug for closing a hole, comprising: An embedding plug for hole closing inserted into a hole provided in the structure and closing the hole,
An axial male screw member;
An internal thread member having an internal thread portion that is screwed with the external thread member, and a cylindrical tubular body that rotatably holds the external thread member;
When the male screw member interposed between the male screw member and the male screw member receives a compressive force in the axial direction by the female screw portion screwed into the male screw member, the direction is perpendicular to the axis. A plug part made of an elastic member that can expand and close the hole;
An embedding plug for closing a hole, comprising:   The said internal thread member has an arm part which degenerates the length of the axial direction, when receiving the force compressed to an axial direction between the said internal thread part and a cylinder. An embedding plug for hole closure as described in 1.   When the plug portion is inserted into a hole provided in the structure, at least a part of the outer peripheral surface of the plug portion is in contact with the inner wall surface of the hole and is rotated following the rotation of the bolt. The hole closing plug according to any one of claims 1 to 3, which has a size and a shape that cause resistance to such an extent as not to occur.   The hole plugging embedding plug according to claim 4, wherein the plug portion is formed by enlarging a diameter of a part of the plug portion in the axial direction.   5. The plug for embedding holes according to claim 4, wherein the plug part is provided with a protrusion on the outer peripheral surface of the plug part.   5. The hole closing plug according to claim 4, wherein the plug portion has a truncated cone shape having a circular bottom surface.   The hole plugging embedding plug according to any one of claims 1 to 7, wherein the elastic member of the embedding portion is formed of either natural rubber or synthetic rubber, or a mixture thereof. A hole closing method using the hole closing embedded plug according to claim 1,
A step of press-fitting into a hole provided in the structure to a position where the plug portion of the plug for closing the hole does not penetrate the hole;
Compressing the plug portion by a compression means, inflating the plug portion in a direction perpendicular to the central axis direction of the hole, and closing the hole;
A hole closing method using a hole closing embedded plug characterized by comprising: A hole closing method using the hole closing embedded plug according to claim 2,
A step of press-fitting into a hole provided in the structure to a position where the plug portion of the plug for closing the hole does not penetrate the hole;
Rotating the male screw member and compressing the plug portion in the axial direction by the female screw portion screwed into the male screw member;
A step of expanding the plug portion in a direction perpendicular to the central axis direction of the hole by this compression step and closing the hole;
A hole closing method using a hole closing embedded plug characterized by comprising: A step of press-fitting into a hole provided in the structure to a position where the plug portion of the plug for closing the hole does not penetrate the hole;
Rotating the male screw member and compressing the plug portion in the axial direction by the female screw portion screwed into the male screw member;
A step of expanding the plug portion in a direction perpendicular to the central axis direction of the hole by this compression step and closing the hole;
Rotating the male screw member in a direction opposite to the rotation direction and extracting the male screw member from the plug portion;
The process of inserting the male screw member from the opening and screwing the male screw member and the female screw portion again after holding the penetrating state with the inside of the structure by the opening after extracting the male screw member from the plug portion. The hole closing method using the hole closing plug according to claim 10, characterized by comprising:   12. The hole closing method using the hole closing embedded plug according to claim 11, wherein an opening after the male screw member is removed from the plug part is used as a state confirmation hole inside the structure. .

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