JP2014206024A - Temporary fixation device for broken tapered hollow columnar body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and stably support a reinforcement pipe, inserted into an underground remaining part of a broken tapered hollow column body, in the underground remaining part.SOLUTION: A temporary fixation device for broken tapered hollow columnar body including a reinforcement pipe which is inserted into a cavity part of an underground remaining part of a broken tapered hollow column body so that an upper part is exposed on the ground, and temporary fixing means of holding and temporarily fixing an overground remaining part of the broken tapered hollow column body to an upper part of the reinforcement pipe exposed on the ground includes: reinforcement pipe support means comprising: a plurality of support parts which are arranged at predetermined intervals in a peripheral direction and an axial direction of the reinforcement pipe so as to support the reinforcement pipe in the cavity part, and provided to contact and leave a tapered inner surface of the cavity part; a drive part which moves the support parts toward and away from the tapered inner surface of the cavity part; and a position restriction part which presses the individual support parts against the tapered inner surface of the cavity part at predetermined positions.

Description

  The present invention is a broken tapered hollow columnar object, for example, when a power pole collides with a vehicle or the like, breaks at the ground near the root, and when the ground remaining part of the broken power pole is displaced from the ground remaining part, The present invention relates to a temporary fixing device for a broken tapered hollow pillar-shaped object for temporarily fixing a ground remaining portion of a broken electric pole as an emergency measure to a reinforcing pipe supported in the underground remaining portion.

  Tapered hollow pillars, for example, utility poles with distribution lines, etc., are made of reinforced concrete, are cylindrical bodies with hollow holes formed, and about one-sixth of the bottom is buried in the ground It has been. When the vehicle A or the like collides with the ground of such a power pole, as shown in FIG. 8A, the concrete on the ground is damaged, the rebar 5 is bent, and the ground remaining portion P2 of the broken power pole P is damaged. Without being hooked on the distribution line, the position may be displaced from the underground remaining portion P1 of the broken pole P.

  In such a case, as shown in FIG. 9, the temporary fixing means 3 may be temporarily restored by temporarily fixing the underground remaining portion P1 and the ground residual portion P2 of the broken utility pole P. More specifically, the reinforcing tube 60 having a smaller diameter than the underground remaining portion P1 is inserted into the underground remaining portion P1 of the broken utility pole P so that the upper portion of the reinforcing tube 60 is exposed to the ground. The And the upper part of the reinforcement pipe | tube 60 which protruded on the ground and the ground residual part P2 of the broken utility pole P are connected by the chain 31 etc. FIG. That is, the ground remaining portion P2 of the broken utility pole P is held and temporarily fixed to the upper portion of the reinforcing pipe 60 that has come out on the ground.

  And as a means to support the reinforcement pipe | tube 2 inserted in the underground remaining part P1 of the broken electric pole P, as shown in FIG.8 (b), opening of underground remaining part P1 of the broken electric pole P is shown, for example It is known that a wedge-shaped spacer S is inserted between the end portion and the reinforcing tube 60 to support the reinforcing tube 60 in the underground remaining portion P1 (Patent Document 1).

  Further, for example, as shown in FIGS. 10 and 11, an outrigger 10 including a pair of bending arms 7 and contact plates 8 and 8 attached to the ends of the pair of bending arms 7 is provided. A plurality of reinforcing pipes 60 arranged in the axial direction are known (Patent Document 2).

  In the case of the device shown in Patent Document 2, the reinforcing pipe 60 having a smaller diameter than the underground remaining portion P1 is inserted into the underground remaining portion P1 of the broken utility pole P so that the upper side portion appears on the ground. Next, the bending arms 7 and 7 of the outrigger 10 disposed in the reinforcing pipe 60 are extended, and the contact plates 8 and 8 of the outrigger 10 are in pressure contact with the inner surface of the underground remaining portion P1. By doing so, the reinforcing pipe 60 is supported in the underground remaining portion P1. The ground remaining portion P2 is temporarily fixed to the upper portion of the supported reinforcing pipe 60 by the temporary fixing means 3 for a predetermined period.

JP 2009-293274 A JP-A-6-323040

  However, in the case of the apparatus shown in Patent Document 1, since the spacer S is inserted between the open end of the underground remaining portion P1 of the broken utility pole P and the reinforcing pipe 60, it is fragile by the collision of the vehicle A. It is conceivable that the strength of the open end of the underground remaining portion P1 is further reduced. In this case, the ground remaining portion P2 of the broken utility pole P is temporarily fixed to the reinforcing pipe 60 for a predetermined period, but the open end of the underground remaining portion P1 collapses during the temporary fixing period, and the ground There is also a possibility that the remaining portion P2 is inclined. Moreover, since the work process with respect to the spacer S increases, workability | operativity is not good. Further, after the restoration, the work of pulling out the spacer S inserted from the open end of the underground remaining portion P1 is not easy and requires a lot of time and labor.

  In the case of the device shown in Patent Document 2, the extension length of the bending arms 7 and 7 of the outrigger 10 is at any position even though the inner surface of the underground remaining portion P1 of the broken utility pole P is a tapered inner surface. It is constant. For this reason, actually, it is not configured to support the reinforcing pipe 60 in a stable state in the underground remaining portion P1.

  Therefore, in view of the above problems, the present invention provides a broken taper that can easily and stably support the reinforcing tube inserted into the underground remaining portion of the tapered hollow columnar object that has been broken. It aims at providing the temporary fixing apparatus of a hollow columnar thing.

  A temporary fixing device for a broken tapered hollow columnar object according to the present invention is a reinforcing tube inserted so that the upper part protrudes to the ground in the hollow portion of the underground part of the broken tapered hollow columnar object, In a temporary fixing device for a broken tapered hollow columnar article, comprising a temporary fixing means for temporarily holding and fixing the ground remaining part of a broken tapered hollow columnar object to the upper part of the reinforcing tube that protrudes to the ground, A plurality of support portions disposed at predetermined intervals in the circumferential direction and the axial direction of the reinforcement tube so as to be able to support the reinforcement tube in the cavity portion, and provided so as to be able to contact and separate from the tapered inner surface of the cavity portion; A reinforcing pipe comprising: a drive unit that advances and retracts the plurality of support parts with respect to the taper inner surface of the cavity part; and a position regulation part that presses each support part against the taper inner surface of the cavity part at a predetermined position. Supporting means is provided.

  According to such a configuration, the plurality of support portions advance toward the tapered inner surface of the hollow portion by the driving portion, and the individual support portions advanced by the position restricting portion at a predetermined position on the tapered inner surface of the hollow portion. Since it press-contacts, a reinforcement pipe | tube can be supported in the said hollow part in the stable state. Therefore, it becomes possible to temporarily fix the ground remaining portion of the broken hollow columnar object to the reinforcing pipe for a predetermined period.

  Moreover, as an aspect of the present invention, the support portion may be configured to include a contact plate that is detachably attached to the tip portion of the rod and contacts the tapered inner surface of the cavity portion.

  In this case, when the operation shaft is rotated in the positive direction, the contact plate comes into contact with the tapered inner surface of the cavity. On the other hand, when the operation shaft is rotated in the opposite direction, the contact plate is separated from the tapered inner surface of the cavity.

  Further, as another aspect of the present invention, the drive unit is close to the reinforcing tube by rotating the operating shaft in the positive direction by operating the operating shaft inserted along the axis of the reinforcing tube, A pair of movers that are separated by rotating the operation shaft in the reverse direction and one end portions facing each other are rotatably connected, and the other end portions are connected to the pair of movers. It is preferable that the arm and a rod disposed at a connecting portion of both end portions of the bending / extending arm so as to extend toward the tapered inner surface of the hollow portion with the operation shaft as a center.

  In this case, when the operation shaft is rotated in the forward direction, the pair of movers move in the approaching direction, the bending / extension arm bends, and the rod advances toward the tapered inner surface of the hollow portion. On the other hand, when the operation shaft is rotated in the opposite direction, the pair of movers move away from each other, and the bending / extension arm extends to retract the rod from the tapered inner surface of the cavity.

  As another aspect of the present invention, it is preferable that the position restricting portion is configured such that an extension length of the rod is set according to a tapered inner surface of the hollow portion with respect to the rod. .

  In this case, since the extension length of the rod is set according to the taper inner surface of the cavity portion, the contact plate can be pressed in accordance with the inner diameter of the taper inner surface of the cavity portion in the axial direction, It is possible to support the reinforcing pipe in a substantially upright state with respect to the hollow portion.

  As another aspect of the present invention, the position restricting portion may be configured to rotate idly when a torque exceeding a predetermined torque value is applied to the operation shaft with respect to the pair of movers.

  In this case, when a torque exceeding a predetermined torque value is applied to the operating shaft when the contact plate is in pressure contact with the tapered inner surface of the cavity, the pair of movers move in the proximity direction, that is, Therefore, the advancing position of the contact plate is regulated at the position where the contact plate is pressed against the tapered inner surface of the cavity, and the contact plate is pressed against the tapered inner surface of the cavity. Thus, the reinforcing pipe is supported.

  According to the present invention, it is possible to easily and stably support the reinforcing tube inserted into the underground remaining portion of the broken tapered hollow columnar object in the underground remaining portion.

The front view which shows the temporary fixing apparatus of the tapered hollow columnar thing (electric pole) based on one Embodiment of this invention, and the enlarged view which shows the support part of this temporary fixing apparatus. The expansion perspective view which shows the state which the bending arm of the drive part extended | stretched and the support part is spaced apart from the inner surface of the underground remaining part of the broken electric pole. It is a figure which shows the usage condition of the said temporary fixing apparatus, and is sectional drawing which shows the state which inserts a reinforcement pipe | tube in the said underground remaining part. Sectional drawing which shows the state which inserted the reinforcement pipe | tube in the said underground remaining part. Sectional drawing which shows the state which supported the reinforcement pipe | tube inserted in the said underground remaining part. The expansion perspective view which shows the state which the bending arm of a drive part bends, and a support part press-contacts to the inner surface of the underground remaining part of the broken hollow columnar thing. Sectional drawing which shows the state which temporarily fixes the ground residual part of the broken utility pole to the upper part of the reinforcement pipe | tube supported in the said underground residual part which protruded on the ground by temporary fixing means. (A) is a figure which shows the state which the vehicle collided with the utility pole and the utility pole was broken, (b) is a figure which shows the temporary fixing apparatus of the conventional broken utility pole, and the underground remaining part of the broken utility pole The perspective view which shows the state which inserted the wedge-shaped spacer between the opening edge part of this, and the reinforcement pipe | tube. In the conventional temporarily fixing device for a broken utility pole shown in FIG. 8 (b), the ground remaining portion is temporarily mounted by temporary fixing means on the upper portion of the reinforcing pipe that is exposed to the ground and supported in the underground remaining portion. Sectional drawing which shows the state to fix. Sectional drawing which shows the other conventional temporary fixing apparatus of the broken utility pole. The enlarged view which shows the principal part of the temporary fixing apparatus of the broken utility pole shown in FIG.

  A broken-down tapered hollow columnar temporary fixing device according to an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, an example in which the electric pole is broken as a result of a vehicle colliding with the electric pole P on which an electric wire is installed as a broken hollow columnar object will be described. 2 and 6, only the reinforcing pipe support means is shown, omitting the underground remaining portion of the broken utility pole, the reinforcing pipe, and the buffer member. Although not shown in FIGS. 1, 3, 4, and 5, the length of the rod is adjusted according to the tapered inner surface of the remaining underground portion.

  As shown in FIG. 1, a temporary fixing device 1 for a tapered tapered hollow columnar object according to the present embodiment includes a reinforcing pipe 2, a temporary fixing means 3, and a reinforcing pipe support means 4.

  The reinforcing tube 2 is composed of a long tube made of metal or hard synthetic resin. The reinforcing tube 2 has a smaller diameter than the inner diameter of the underground remaining portion P1 of the broken utility pole P. Further, the reinforcing pipe 2 is set to a length such that the upper part of the reinforcing pipe 2 protrudes to the ground in a state where the reinforcing pipe 2 is inserted into the hollow portion H of the underground portion P1 of the broken utility pole P. The ground remaining portion P2 of the broken pole P is temporarily fixed by the temporary fixing means 3 to the protruding portion of the reinforcing pipe 2 protruding to the ground (see FIG. 7).

  The temporary fixing means 3 is composed of a pair of insertion members 30 and 30, chains 31, 31 and a fastening tool, and the ground remaining portion of the broken utility pole P is formed on the upper portion of the reinforcing pipe 2 that projects to the ground. Hold P2 and temporarily fix it. The pair of insertion members 30 and 30 and the chains 31 and 31 of the temporary fixing means 3 are attached to the reinforcing pipe 2 in advance.

  The pair of insertion members 30 and 30 are interposed between the upper part of the reinforcing pipe 2 that protrudes to the ground and the remaining ground part P2, and the upper surface of the reinforcing pipe 2 that protrudes to the ground. In addition, an arcuate contact surface is formed (not shown) so as to be in close contact with the surface of the remaining ground portion P2.

  The chains 31 and 31 are used to tighten and integrate the upper portion of the reinforcing tube 2 that protrudes to the ground, the insertion members 30 and 30 and the ground remaining portion P2 with a fastening tool (not shown). .

  As shown in FIG. 2, the reinforcing tube support means 4 includes a support portion 40, a drive portion 41, and a position restricting portion.

  As shown in FIG. 2, the support unit 40 includes a rod 400, a contact plate 401, and a buffer member (not shown).

  As shown in FIG. 2, the rod 400 is disposed at predetermined intervals in the circumferential direction and the axial direction of the reinforcing tube 2 so that the reinforcing tube 2 can be supported in the hollow portion H, and the hollow portion It is provided so as to be close to and away from the inner surface of the taper of H. The rod 400 is composed of a short metal screw rod. The rod 400 is connected to both ends of the bending arm 412 of the drive unit 41 described later so as to extend toward the tapered inner surface of the hollow portion H around the operation shaft 410 of the drive unit 41 described later. And is attached to the support plate 4120 by screwing into a screw hole (not shown) at a substantially central portion of the support plate 4120.

  The contact plate 401 is formed of a rectangular plate member made of metal or synthetic resin. As shown in FIG. 2, the center of the back surface of the contact plate 401 is detachably attached to the tip of the rod 400, and the surface of the contact plate 401 is in contact with and separated from the tapered inner surface of the cavity H. To do.

  The buffer member 402 is made of a rubber plate fixed to the surface of the contact plate 401. As shown in FIG. 1, the buffer member 402 has irregularities formed on the surface so as to be in close contact with the tapered inner surface of the cavity H. The buffer member 402 is not limited to a rubber member, and may be a flexible synthetic resin sheet.

  As shown in FIG. 2, the drive unit 41 includes an operation shaft 410, a pair of movers 411 a and 411 b, and a bending / extending arm 412. And the drive part 41 is comprised so that the some rod 400, ... of the support part 40 may be advanced or retracted with respect to the taper inner surface of the said cavity part H. As shown in FIG.

  The operation shaft 410 is composed of a long metal screw rod. As shown in FIG. 2, the operation shaft 410 is inserted into the reinforcing tube 2 along the axis of the reinforcing tube 2 and is rotatably supported. Further, as shown in FIG. 1, the upper end portion of the operation shaft 410 protrudes from the opening end portion of the reinforcing tube 2 and is bent at approximately 90 degrees. Note that the upper end portion of the operation shaft 410 may be formed in a hexagonal shape so that an operation tool such as a ratchet can be fitted therein.

  The pair of movers 411a and 411b includes a female screw 411a having a screw hole formed in the forward direction and a female screw 411b having a screw hole formed in the reverse direction. Then, as shown in FIG. 6, the pair of movers 411a and 411b approach each other by rotating the operation shaft 410 in the forward direction, and rotate the operation shaft 410 in the opposite direction as shown in FIG. Separate by operating.

  As shown in FIG. 2, the bending arms 412 and 412 have one end portions opposed to each other rotatably connected to both end portions of a support plate 4120 described later, and the other end portions of the pair of movers 411a. , 411b. And the connection part of a pair of bending-extension arms 412 and 412 exists in the intermediate position of a pair of needle | mover 411a, 411b.

  As shown in FIG. 2, the support plate 4120 is formed of a rectangular plate member, and has a screw hole (not shown) into which the rod 400 is screwed at the center thereof. As described above, the support plate 4120 is rotatably connected to the opposite ends of the bending arms 412, 412, and in a state orthogonal to the rod 400, the taper inner surface of the cavity H It is configured to move forward and backward.

  The position restricting portion individually contacts the individual rods 400,... According to the tapered inner surface of the cavity H in order to press the individual rods 400,. Lengths (extending lengths L1 to L3) from the support plate 4120 of the rods 400,. .

  Next, a usage mode will be described with reference to FIGS. When the utility pole P is broken, first, as shown in FIG. 3, the reinforcing pipe 2 is inserted into the hollow portion H of the underground remaining portion P1 of the broken utility pole P. At this time, as shown in FIGS. 2 and 4, the pair of insertion members 30, 30 of the temporary fixing means 3 and the chains 31, 31 are attached to the reinforcing pipe 2 in advance. In addition, the bending / extending arms 412 and 412 of the drive part 41 of the reinforcing pipe support means 4 in the reinforcing pipe 2 extend, and a plurality of rods 400 arranged in the circumferential direction and the axial direction in the underground remaining part P1. It is in a state of retreating from the tapered inner surface of the underground remaining portion P1. Further, when viewed from the ground, the plurality of rods 400 are arranged radially (on the orthogonal center line) with the operation shaft 410 as the center.

  Further, as described above, as shown in the enlarged view of FIG. 1, the individual rods 400,... Are supported by the support plates 4120 of the individual rods 400,. The length from the connecting portion 412 and 412) to the contact plate 401 (extension lengths L1 to L3) is set. That is, the extension length (L1) from the support plate 4120 to the contact plate 401 of each rod 400,... Arranged on the base end side of the underground remaining portion P1 is set to be the longest, and the underground The extension length (L1 <L <L3) from the support plate 4120 to the contact plate 401 of each rod 400,... Is shortened toward the tip of the remaining portion P1, and the ground The extension length (L3) from the support plate 4120 to the contact plate 401 of each rod 400,... Arranged on the distal end side of the remaining portion P1 is set to be the shortest.

  Next, as shown in FIGS. 5 and 6, when the operation shaft 410 of the drive unit 41 is rotated in the forward direction, the pair of movers 411 a and 411 b move in the approaching direction, and the bending arms 412 and 412 are moved. The plurality of rods 400,... Are bent toward the taper inner surface of the cavity H of the remaining underground portion P1, and the contact plate 401 comes into close contact with the taper inner surface of the cavity H.

  Accordingly, in the underground remaining portion P1, the plurality of rods 400,... Radiate toward the inner surface of the underground remaining portion P1, and the reinforcing pipe 2 is substantially upright and stable. It will be supported in the state.

  Next, as shown in FIG. 7, the ground remaining portion P2 of the broken utility pole P is brought close by a moving means such as a crane (not shown). Then, the chains 31, 31 are wound around the upper portion of the reinforcing pipe 2 that has come out on the ground and the residual ground portion P2, and are fastened and fixed by a fastening tool (not shown), so that the residual ground portion P2 becomes the reinforcing pipe 2 Is temporarily fixed to the underground remaining portion P1. Thereafter, power transmission is started.

  When the temporary fixing device 1 is removed after the temporary restoration, the fastening tool (not shown) is loosened, the chains 31 and 31 are removed, and the insertion inserted between the upper portion of the reinforcing pipe 2 and the ground remaining portion P2. The members 30 and 30 are taken out. Then, the operation shaft 410 of the drive unit 41 of the reinforcing tube support means 4 is rotated in the reverse direction to extend the bending / extending arms 412 and 412 so that the plurality of rods 400,. The contact plates (buffer members 402) 401,... Of the support portion 40 are separated from the taper inner surface of the underground remaining portion P1. Thereafter, the reinforcing pipe 2 is pulled out from the hollow portion H of the underground remaining portion P1.

  As described above, according to the temporary fixing device 1 for a broken tapered hollow columnar object according to this embodiment, a plurality of support portions 40 are directed toward the taper inner surface of the hollow portion H by the drive portion 41 of the reinforcing tube support means 4. The rods 400,... Are advanced, and the individual rods 400,... That are advanced by the position restricting portion are pressed against the tapered inner surface of the cavity H at a predetermined position, so that the reinforcing pipe 2 can be easily placed in the cavity H. And can be supported in a stable state. Therefore, the ground remaining portion P2 of the broken utility pole P can be temporarily fixed to the reinforcing pipe 2 for a predetermined period.

  In addition, the temporary fixing apparatus 1 of the tapered tapered hollow columnar object according to the present invention can be variously modified without being limited to the above embodiment.

  For example, in the case of the above-described embodiment, the extension lengths L1 to L3 of the individual rods 400,... Are set as the position restricting portions. It may be configured to idle when a torque exceeding a predetermined torque value is applied. Also in this case, the contact plate 401 can be brought into close contact with the tapered inner surface of the underground remaining portion P1 as described above.

  In the case of the above-described embodiment, the electric pole P on which an electric wire is installed has been described as an example of the hollow columnar object.

DESCRIPTION OF SYMBOLS 1 ... Temporary fixing apparatus of the broken tapered hollow columnar thing, 2 ... Reinforcement pipe, 3 ... Temporary fixing means, 4 ... Reinforcement pipe support means, 40 ... Support part, 41 ... Drive part, 400 ... Rod, 401 ... Contact plate , 402 ... buffer member, 410 ... operation shaft, 411a, 411b ... mover, 412 ... bending arm, P ... utility pole (broken tapered hollow columnar), P1 ... residual part in the ground, P2 ... residual part on the ground, H ... Cavity

Claims (5)

A reinforcing tube inserted into the hollow portion of the underground portion of the tapered hollow columnar material that has been broken, so that the upper side portion is exposed to the ground;
In a temporary fixing device for a broken tapered hollow columnar article, comprising a temporary fixing means for temporarily holding and fixing the ground remaining part of a broken tapered hollow columnar object to the upper part of the reinforcing tube that protrudes to the ground,
A plurality of support portions disposed at predetermined intervals in the circumferential direction and the axial direction of the reinforcement tube so as to be able to support the reinforcement tube in the cavity portion, and provided so as to be able to contact and separate from the tapered inner surface of the cavity portion; ,
A drive part for moving the plurality of support parts forward and backward with respect to the tapered inner surface of the cavity part;
A temporary fixing device for a broken tapered hollow columnar article, comprising reinforcing tube support means comprising a position restricting portion that presses each supporting portion against a tapered inner surface of the hollow portion at a predetermined position.   2. The broken tapered hollow column-shaped object according to claim 1, wherein the support portion includes a contact plate that is detachably attached to a distal end portion of the rod and contacts a tapered inner surface of the cavity portion. Temporary fixing device.   The drive unit is close to the reinforcement tube by rotating the operation shaft in the forward direction and the operation shaft inserted along the axis of the reinforcement tube and rotating the operation shaft in the reverse direction. A pair of movers that are spaced apart from each other, a bending arm that is connected to the pair of movers with one end opposite to each other pivotably connected to the pair of movers, and the operation axis. It is comprised with the rod arrange | positioned at the connection part of the both ends of the said bending-extension arm so that it may extend toward the taper inner surface of the said cavity part, The Claim 1 or 2 characterized by the above-mentioned. Temporary fixing device for broken hollow columnar objects.   The said position control part is comprised so that the extension length of the said rod may be set with respect to the said rod according to the taper inner surface of the said cavity part. A temporary fixing device for a broken tapered hollow columnar object according to claim 1.   The said position control part is comprised so that it may rotate idly when the torque exceeding a predetermined torque value is added to an operating shaft with respect to a pair of said needle | mover. The temporary fixing apparatus of the tapered tapered hollow columnar object described in 1.

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