JP2010273435A - Cross arm exchange device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cross arm exchange device that safely exchanges a cross arm to which an anchor tool with a lateral strain insulator is fitted, and also exchanges the cross arm even while being energized when an overhead wire is an electric wire. <P>SOLUTION: The cross arm exchange device includes a fixed member 10 which is temporarily fixed to an electric pole in a direction following the overhead wire 100, a swinging member 20 erected on a tip side of the fixed member 10 so that an attitude is converted into a devotion attitude and an erection attitude, an operation means 30 which bridges the fixed member 10 and the swinging member 20 and converts the attitude of the swinging member 20, a coupling member 40 coupling the swinging member 20 and the overhead wire 100, a bar 50 whose one end side can freely slide to the swinging member 20 and whose other end side is turned to a direction of the strain insulator 111a, and an insulator holding member 60 which is fitted to the other end of the bar 50 and holds the strain insulator 111a. A supporting member 70 which slidably supports the other end side of the bar 50 is erected toward the strain insulator 111a from the base end side of the fixed member 10. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bracelet exchanging device for exchanging a brace fixed to a utility pole, and more particularly, an exchanging brace for exchanging a brace attached with a tensioning tool having a lateral tension insulator. Relates to the device.

  An overhead wire such as an electric wire or a telephone line is laid on a brace fixed to a utility pole. Patent Document 1 discloses a lifting-type temporary arm for exchanging the arm metal.

  The lifting-type temporary arm includes a fixing member fixed to the utility pole, an elongated arm member held by the fixing member orthogonal to the utility pole, and a lifting member attached to the arm member. The lifting portion is for lifting the electric wire from the armrest in a tight-wired state, and includes a winding portion for winding and rewinding the lifting belt in the suspended state.

  In this lifting-type temporary arm, the fixing member is fixed to the utility pole at a position above the arm and the arm member is arranged in parallel to the arm. Then, the electric wire is wound around the tip of the lifting belt that is suspended from the arm member, and by winding the lifting belt, the electric wire is temporarily held while being stretched, and the lever and arm metal are exchanged. The

JP-A-6-153343

  Since the lifting-type temporary arm disclosed in Patent Document 1 has to wrap an electric wire around the tip of the lifting belt, it becomes a power failure operation, which has a great influence on electric consumers. Furthermore, although the lifting-type temporary arm disclosed in Patent Document 1 can replace the arm metal to which the vertical pin insulator is fixed, it replaces the arm metal 101 attached with the retainer 110 as shown in FIG. Can not do it.

  The tensioning tool 110 shown in the figure has two sideways tension insulators 111a and 111b connected in series (although not shown, one or three or more tension insulators may be connected). A strap 112 is connected to one end of 111 a, a tension clamp (not shown) is connected to the other end of the other tension insulator 111 b, and the tension clamp is covered with a cover 114. The strap 112 is attached to the arm metal 101, and the cable clamp is held on the arm metal 101 fixed to the utility pole 103 by holding the electric wire 100.

  When the strap 112 is removed from the arm metal 101, the strap 112 and the tension insulators 111a and 111b may hang down and the operator may be injured. Therefore, the arm metal 101 to which such a retainer 110 is attached cannot be easily replaced.

  Therefore, the present invention can safely replace a brace attached with a retainer equipped with a throat on a lateral tension insulator, and even when the overhead wire is an electric wire, even in an energized state. It is an object of the present invention to provide a bracelet changing apparatus.

  The brace exchanging device according to the present invention is for exchanging brace attached with a retainer having a plurality of laterally tensioning insulators fixed to a power pole and connected in series. A brace exchanging device, a fixing member temporarily fixed to a power pole in a direction along the overhead line, and a swinging member erected on the distal end side of the fixing member so that the posture is changed between a tilting posture and a standing posture And an operating means that spans between the fixed member and the swinging member and changes the posture of the swinging member, a connecting member that connects the swinging member and the overhead wire, and one end side is slidable on the swinging member The other end is directed to the tension insulator, and the insulator holding member that is attached to the other end of the bar and holds the tension insulator is provided. .

  According to this armrest changing apparatus, for example, the fixing member is temporarily fixed to the power pole in the direction along the overhead line on the lower side of the armrest to be exchanged, and the swinging member is in a tilting posture so that its tip side is separated from the power pole, The front end side of the swinging member and the overhead wire are connected by a connecting member, and the lever holding member holds the tension insulator, and then the operating means is operated to move the swinging member from the tilted posture to the standing posture or Use a tilted posture approaching the power pole.

  Then, the portion of the overhead wire connected to the connecting member is drawn to the arm metal side, and the tension applied to the arm metal from the overhead wire via the retainer is moved from the connecting member of the arm metal changing device to the swinging member, It can be converted into a fixing member so that no tension is applied to the arm metal. In such a state, the strap is removed from the bracelet and the bracelet is exchanged.

  Then, by attaching the retainer to the replaced new brace, and then operating the operating means, the swinging member is changed from the standing posture or the posture leaning in the direction approaching the electric pole to the inclined posture separating from the electric pole, and the overhead wire Then, the tension applied to the swinging member and the fixing member is converted to a new brace that has been replaced from the retainer so that it cannot be applied to the swinging member. Finally, when the fixing member is removed from the utility pole, a series of operations is completed.

  Further, in the brace exchanging apparatus according to the present invention, a support member that slidably supports the other end side of the bar is erected from the base end side of the fixing member toward the tension insulator. It is preferable.

  According to this arm metal changing apparatus, the support member is erected on the base end side of the fixing member, and the support member slidably supports the other end side of the bar, whereby the insulator attached to the other end portion of the bar In a state where the holding member holds the tension insulator, the tension insulator can be supported by the support member.

  Further, in the brace exchanging apparatus according to the present invention, the support member can adjust a fixing position in which the supporting member protrudes from the fixing member toward the tension insulator and / or a fixing position in a direction away from the utility pole. It is preferable to be fixed to the fixing member.

  According to this armrest changer, the position at which the fixing member is temporarily fixed to the utility pole is adjusted to a certain degree by adjusting the fixing position at which the support member protrudes from the fixing member toward the tension insulator and being fixed to the fixing member. Even so, the support member can support the bar in an appropriate posture. Then, the support member is adjusted to the fixing position in the direction away from the utility pole and fixed to the fixing member, so that the bar is supported with the support member in a vertical posture even if the length of the retaining device is different. Can do.

  Moreover, in the armrest changing apparatus according to the present invention, it is preferable that a bifurcated portion for guiding the overhead wire so as not to drop off is provided at the tip of the swinging member.

  According to this brace exchanging device, since the bifurcated portion is provided at the tip of the swinging member, when the connecting member connecting the overhead wires is pulled toward the arm bracket side by the operating means and returned, It is possible to prevent deviation from the erected line.

  Further, in the arm replacement apparatus according to the present invention, it is preferable that the operation means is detachable from a fixing member and a swinging member.

  According to this brace changing apparatus, the operating means is detachable from the fixing member and the swinging member, so that the fixing member is temporarily fixed to the utility pole with the operating means removed from the fixing member and the swinging member. In the case where the workability is improved and the operation means is prone to failure, the operation means can be replaced with a non-failed operation means.

  According to the present invention, even when the brace is attached to a retainer having a side tension insulator, the brace can be safely exchanged, and the overhead wire is an electric wire. In the meantime, since an indirect hot wire tool can be used for work, there is no power outage and inconvenience can be avoided for electric consumers.

It is a front view showing one embodiment of a brace exchange device concerning the present invention. It is a front view which shows the 1st step which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the 2nd step | paragraph which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the 3rd step | paragraph which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the 4th step which replaces | exchanges a brace with the brace replacement | exchange apparatus which concerns on this invention. It is a front view which shows the 5th step which replaces | exchanges a brace with the brace replacement | exchange apparatus which concerns on this invention. It is a front view which shows the 6th step which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the 7th step which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the 8th step which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the 9th step | paragraph which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the 10th step | paragraph which replaces | exchanges a brace with the brace changing apparatus which concerns on this invention. It is a front view which shows the last step which replaces | exchanges a bracelet with the brace replacement | exchange apparatus which concerns on this invention. It is a front view which shows the state by which the overhead wire was temporarily installed in the brace by the retainer.

  An embodiment of an arm replacement apparatus according to the present invention will be described with reference to FIGS. This arm metal changing apparatus is used as an apparatus for exchanging the arm metal 101 on which the overhead wire 100 is installed by the retainer 110 described in FIG.

  That is, the tensioning tool 110 is separated from the electric pole 103 by two linear tension insulators 111a and 111b, a strap 112 connected to one end of the tensile insulator 111a on the side close to the electric pole 103, and the like. A tension clamp (not shown) connected to the other end of the tension insulator 111b on the other side and a cover 114 covering the tension clamp are provided.

  Further, the tension insulators 111a and 111b may be only one or three or more in series, although not shown in the figure, and are mainly molded by a porcelain to have an annular groove, and are partially made of a metal core. (Not numbered) is exposed. The strap 112 is provided with a through hole (not shown) at the tip, a bolt 115 or the like is inserted into the through hole and a through hole provided in the arm metal 101, and the nut 116 is fastened to tighten the arm. Attached to gold 101.

  Since the tension clamp holds the overhead wire 100, tension is applied from the overhead wire 100 to the arm metal 101 via the tension insulators 111a and 111b and the strap 112. Such a retainer 110 is disposed at a predetermined position of the arm metal 101 and lays one to three overhead wires 100 arranged in parallel.

  As shown in FIG. 1, the armrest changing apparatus according to the present embodiment includes a fixing member 10 that is temporarily fixed to the utility pole 103, and a distal end of the fixing member 10 so that the posture is changed between a tilting posture and a standing posture. The oscillating member 20 standing on the side, the fixing member 10 and the oscillating member 20 are spanned, and the operating means 30 for changing the attitude of the oscillating member 20 is connected to the oscillating member 20 and the overhead wire 100. A connecting member 40, one end side of which is slidably supported by the swinging member 20, and the other end side is attached to the tension insulator 111a, and the other end of the bar 50 is attached to the tension member. And an insulator holding member 60 for holding the insulator 111a.

  The fixing member 10 is formed into a rectangular tube shape or a prism shape, and is temporarily fixed to the utility pole 103 in a horizontal posture. On the base end side of the fixing member 10, strap portions 11, 11 are provided to sandwich the temporary arm metal 102 temporarily fixed to the power pole 103 by a band (not shown) below the arm metal 101 from above and below. Yes.

  The upper and lower surfaces of the temporary arm metal 102 are provided with through holes at a plurality of locations, and the strap portions 11 and 11 of the fixing member 10 are provided with through holes to communicate with the through holes of the temporary arm metal 102. The fixing member 10 is temporarily fixed to the temporary arm metal 102 by inserting a bolt through the through hole of the temporary arm metal 102 and the through holes of the strap portions 11 and 11 and fastening the nut.

  Further, the fixing member 10 is provided with, for example, an inverted U-shaped locking portion 12 at a position adjacent to the upper strap portion 11. One end of the operating means 30 is hooked on the locking portion 12. One end of the operating means 30 is provided with a hook 30a so as to be easily attached to and detached from the locking portion 12.

  The swinging member 20 is fixed to a locking portion 12 provided at the distal end portion of the fixing member 10 with a pin so that the posture can be changed between a tilting posture and a standing posture. Further, a bifurcated portion 21 is provided at the tip (upper end) of the swinging member 20 so as to guide the overhead wire 100 so as not to drop, that is, to be slidably sandwiched. The bifurcated portion 21 may not be provided depending on the usage situation.

  Further, ring-shaped locking portions 22 and 23 are provided on the surface of the swinging member 20 on the side facing the utility pole 103 and the surface on the opposite side, for example. A hook 30 b provided at the other end of the operating means 30 is locked to one locking portion 22.

  The operation means 30 is not limited as long as the swinging member 20 can be switched between the tilting posture and the standing posture by remote operation. For example, the operation means 30 partitions the cylinder 31 and the inside of the cylinder 31 into two chambers. A piston (not shown) and a piston rod 32 that is fixed to the piston and protrudes / retreats to the other end of the cylinder can be provided. In the operation means 30, one hook 30 a is provided at the base end portion of the cylinder 31, and the other hook 30 b is provided at the distal end portion of the piston rod 32.

  The connecting member 40 includes a grip portion 41 that grips the core wire 100a of the overhead wire 100 or the covering, a hook 42 that is hooked on the other locking portion 23 of the swing member 20, and a grip portion 41. What is also called a main body separation type provided with a suspension part 43 such as an annular rope or chain for connecting the tool 42 can be used. The hook 42 of the connecting member 40 is used without removing it from the locking portion 23 of the swinging member 20, and includes a carabiner having a lever that is opened and closed by a spring force so that the suspension portion 43 can be easily attached and detached. Is preferably used.

  Although not shown, the connecting member 40 is referred to as a body-integrated type in which a holding portion that holds the overhead wire 100 and a connecting portion having an arc-shaped lever portion that is fixed to the distal end portion of the swinging member 20 are integrated. May be used.

  The bar 50 is slidably supported at one end by the connecting member 40, and the other end is directed toward the tension insulator 111a. The bar 50 is in an inclined posture in which the other end is slightly upward. . The bar 50 is slidably supported by a support member 70 erected on the fixing member 10 at the distal end side.

  The support member 70 has a flat rod-like columnar portion 71 that is in a vertical posture or a slightly inclined posture from the vertical direction, and a pair of slits that fit the fixing member 10 and penetrate the column portion 71 on the upper and lower surfaces. And a rectangular tube-shaped slide portion 72 formed so as to face each other. Therefore, the support column 71 is sandwiched between the fixing member 10 and one surface of the slide unit 72.

  Further, the upper end portion of the column portion 71 is provided with a bifurcated portion 71a that guides the other end portion side of the bar 50 so as to be slidably sandwiched.

  Further, a plurality of fixing holes 71b, 71b,... Are formed in the length direction at least on the lower side of the support column 71, and a female screw is formed on the surface where the slide unit 72 overlaps the support column 71. A fixing tool 73 such as a thumbscrew penetrates the fixing hole 71b of the support column 71 from the female screw of the slide unit 72, and the front end portion presses the side surface of the fixing member 10, so that the support column 71 is brought into a predetermined position. Fixed.

  That is, when the fixing tool 73 passes through the upper fixing hole 71 b of the support column 71, the bifurcated portion 71 a is positioned on the lower side, and the fixing tool 73 passes through the lower fixing hole 71 b of the support column 71. The bifurcated portion 71a is located on the upper side. Moreover, the slide part 72 externally fits the fixing member 10, so that the slide part 72 can be fixed at an arbitrary position from a position close to the utility pole 103 to a position away from the power pole 103.

  The insulator holding member 60 attached to the other end of the bar 50 includes, for example, an annular groove portion of the tension insulator 111a or a substantially U-shaped holder portion surrounding the metal core about a half circumference, and an annular groove portion of the tension insulator 111a. Alternatively, an I-shaped pressing portion that slides so as to come in contact with and away from the metal core and a lock portion that maintains a state in which the pressing portion presses the tension insulator 111a.

  This bracelet exchanging apparatus is configured as described above. Next, a method for exchanging the bracelet 101 will be described. In addition, an indirect hot wire tool can be used for the following work.

  First, as shown in FIG. 2, the covering of the overhead wire 100 in the vicinity of the cover 114 covering the retention clamp of the retention device 110 is peeled off to expose the core wire 100a. Note that tension is applied to the brace 102 from the overhead wire 100 via the tension insulators 111 a and 111 b and the strap 112.

  Next, as shown in FIG. 3, the core wire 100 a where the grip portion 41 of the connecting member 40 is exposed is gripped so that the connecting member 40 can draw the overhead wire 100 toward the arm metal 101. If the connecting member 40 can grip the covering and draw the overhead wire 100 without slipping between the covering and the core wire 100a, the gripping portion 41 can remove the sheath of the overhead wire 100 without exposing the core wire 100a. It may be gripped.

  Then, as shown in FIG. 4, the temporary arm metal 102 is temporarily fixed to the lower power pole 103 of the arm metal 101, and the strap portions 11 of the fixing member 10 are temporarily fixed to the temporary arm metal 102. Note that the operation member 30 is not attached to the fixing member 10, and the weight is reduced accordingly, and the burden of temporarily fixing the fixing member 10 to the temporary arm metal 102 is reduced.

  In addition, the fixing member 10 is temporarily fixed in a horizontal posture in the direction along the overhead line 100, in the drawing, below the cover 114, and the distal end portion is located between the connecting member 40 and the cover 114. The swinging member 20 attached to the distal end side of the fixing member 10 is in an inclined posture, and the distal end side faces the grip portion 41 of the connecting member 40. A hook 42 of the connecting member 40 is attached in advance to the other locking portion 23 of the swing member 20.

  Then, as shown in FIG. 5, the connecting member that has already gripped the overhead wire 100 after the swinging member 20 is slightly raised by a remote operation using an indirect live wire tip tool or the like. 40 suspension parts 43 are locked to a hanging tool 42 attached to the swing member 20.

  Next, as shown in FIG. 6, the operating means 30 is bridged between the fixing member 10 and the swinging member 20. That is, one hook 30 a provided on the cylinder 31 of the operating means 30 is engaged with the engaging portion 12 of the fixing member 10, and the other hook 30 b provided on the piston rod 32 is engaged with one engagement of the swing member 20. Lock to the stop 22. The operation means 30 in the initial state is in a state where the piston rod 32 is extended.

  Next, as shown in FIG. 7, the operator remotely operates the operating means 30 to slightly retract the piston rod 32, so that the swinging member 20 is slightly raised, and the connecting member 40 connects the overhead wire 100. Pull slightly.

  Next, as shown in FIG. 8, the column 71 of the support member 70 is erected at a desired position by the slide unit 72, and the bifurcated portion 71 a at the upper end of the column 71 is connected to the swing member 20. A bar 50 is slid between them. Further, an insulator holding member 60 is attached to the other end of the bar 50, and the insulator holding member 60 holds the pressure-resistant insulator 111a. Even if the temporary fixing position of the temporary arm metal 102 is slightly higher or lower than a predetermined position by the support column 71 being erected at a desired position of the fixing member 10, the length of the tension insulators 111a and 111b is further increased. Even if they are different, the bar 50 can be in the intended posture.

  Next, as shown in FIG. 1, the operator remotely operates the operating means 30 and retracts the piston rod 32 to stand the swinging member 20, or a posture slightly tilted toward the utility pole 103 (not shown). And

  Then, the portion of the overhead wire 100 gripped by the gripping portion 41 of the connecting member 40 is drawn toward the utility pole 103 (for example, about 5 cm), and the armature 101 is stretched from the overhead wire 100 through the tension insulators 111a and 111b and the strap 112. The applied tension is converted from the swinging member 20 to the temporary arm metal 102 via the fixing member 10. Therefore, no tension is applied to the arm metal 101 from the overhead wire 100.

  Note that the overhead wire 100 is guided by the bifurcated portion 21 of the swinging member 20 when being pulled, so that it does not deviate from the installed line.

  Next, as shown in FIG. 9, the armrest changer is temporarily fixed on the opposite side (left side in the drawing) by the same method as described above. That is, in the armrest changing apparatus on the opposite side, the fixing member 10 is temporarily fixed to the temporary arm metal 102 newly temporarily fixed to the utility pole 103, and the swinging member 20 is in an inclined posture (not shown).

  Then, by setting the swinging member 20 in an upright posture, the tension applied to the arm metal 101 from the opposite overhead wire via the tension-resistant insulators 111a and 111b and the strap 112 is moved from the swinging member 20 to the fixing member 10. Then, it changes to the temporary arm 102. Then, no tension is applied to the brace 101 from both the overhead lines 100, 100 via the straps 112, 112.

  Next, as shown in FIG. 10, by removing the nut 116 from the bolt 116, both straps 112, 112 are removed from the arm metal 101, and the arm metal 101 is removed from the utility pole 103. At this time, each tension insulator 111a connecting each strap 112 is held by the insulator holding member 60, each insulator holding member 60 is attached to each bar 50, and each bar 50 is connected to each rocking member 20 and each support. Since it is supported by the column 71 of the member 70, the tension insulators 111a and 111b do not hang down and maintain the posture facing the arm metal 101.

  Subsequently, a new arm metal 101 is attached to the utility pole 103. Both straps 112, 112 are attached to a new arm metal 101 (the same state as in FIG. 9). Each strap 112 is connected to the tension insulator 111a, maintains the posture in which the tension insulator 111a faces the arm metal 101, and further, since no tension is applied, the strap 112 is attached to the new arm metal 101. Easy to install.

  Next, as shown in FIG. 11, both the operating means 30 are operated to extend the piston rod 32, so that the swinging member 20 is brought into a tilted posture. Then, the tension applied to the temporary arm metal 102 via the swing member 20 and the fixing member 10 is converted from the overhead wire 100 to the new arm metal 101 exchanged via the tension insulators 111a and 111b and the strap 112. .

  Next, the insulator holding member 60 is removed from the tension insulator 111a, and the bar 50 and the column portion 71 of the support member 70 are removed. Subsequently, the operating means 30 is removed from the fixing member 10 and the swinging member 20, and the suspension part 43 of the connecting member 40 is removed from the hanging tool 42 attached to the swinging member 20.

  Next, the main body member 10 is removed from the temporary arm metal 102 and the temporary arm metal 102 is removed from the utility pole 103. Then, by removing the grip portion 41 of the connecting member 40 that has gripped the overhead wire 100 from the overhead wire 100 and finally covering the exposed core wire 100a with a covering body 100b such as an insulating tape, as shown in FIG. A series of work is completed.

  The present invention can be variously modified without being limited to the above embodiment. For example, the operating means 30 may be left attached without being detachable from the fixing member 10 and the swinging member 20.

  Further, since the support member 70 is for supporting the bar 50 in a stable state, either the fixed position for projecting toward the tension insulators 111a and 111b or the fixed position in the direction away from the utility pole 103 is provided. Or by allowing the swinging member 20 to be supported in a stable state and in an arbitrary posture by a stay (not shown) or the like, It is good even if it does not have.

  In addition, the brace exchanging device of the present invention can exchange the brace 101 without causing a power failure, but the brace 101 may be exchanged as a power outage depending on the situation.

10 ......... Fixing member 20 ......... Oscillating member 21 ......... Fork 30 ......... Operating means 40 ......... Connecting member 50 ......... Bar 60 ......... Insulator holding member 70 ......... Support member 100 …… Overhead wire 101 …… Brown 103 …… Pole 111a… Tension insulator 112 …… Strap

Claims (5)

A bracelet exchanging device for exchanging a brace that is fixed to a utility pole and to which a retainer equipped with one or a plurality of laterally stretched tension insulators connected in series is attached,
A fixing member temporarily fixed to the utility pole in a direction along the overhead line, a swinging member erected on the distal end side of the fixing member so that the posture is changed between a tilting posture and a standing posture, and swinging with the fixing member An operating means that spans the member and changes the posture of the swinging member, a connecting member that connects the swinging member and the overhead wire, one end side is slidably supported by the swinging member, and the other end side is An arm changer comprising: a bar directed toward the tension insulator; and an insulator holding member attached to the other end of the bar and holding the tension insulator.   The bracelet according to claim 1, wherein a support member that slidably supports the other end side of the bar is erected from the base end side of the fixing member toward the tension insulator. Exchange device.   The support member is fixed to the fixing member so that a fixing position protruding from the fixing member toward the tension insulator and / or a fixing position in a direction away from the utility pole can be adjusted. The brace changing apparatus according to claim 2.   The armrest changing apparatus according to any one of claims 1 to 3, wherein a bifurcated portion that guides the overhead wire so as not to drop off is provided at a tip of the swing member.   The arm operating device according to any one of claims 1 to 4, wherein the operation means is detachable from a fixing member and a swinging member.

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