JP5868924B2 - Indirect hot-wire tool for operation rope installation - Google Patents

Description

  This invention is an indirect hot wire tool for attaching an operation rope used to attach an operation rope to a hole of an operated member provided at a high place such as an operation handle of a switch or a ring attached to this hole, The present invention relates to a method of attaching an operation rope using the indirect hot wire tool for attaching the operation rope.

  A high-voltage load switch (hereinafter referred to as a switch) is used to open and close circuits such as transmission and distribution lines, substation buses, and devices. As shown in Patent Document 1 and the like, the operation handle is moved. The circuit is opened and closed.

  An example thereof is shown in FIG. 7A. The switch 100 is provided with an operation handle 101. The operation handle 101 is rotatable to the left and right with a central portion as an axis. The central shaft is connected to an internal opening / closing circuit. For example, when the pointer 102 provided on the operation handle 101 indicates the “ON” state as shown in the figure, the internal opening / closing circuit is connected. Is connected to the electric circuit, and when the operation handle 101 is rotated in the reverse direction so that the pointer 102 indicates the “OFF” state, the electric circuit is disconnected (opened).

  The operation handle 10 of such a switch is directly in the holes 103 provided at the left and right ends (see FIG. 7B) or the ring 104 attached to the holes 103 (see FIG. 7C). In addition, the operation rope 50 is attached by “Makiknot”, and the binding wire 51 is used to manually tighten the distal end portion of the operation rope 50 by a live line.

JP 2010-186652 A

  However, in such an operation of attaching the operation rope, it is very difficult to pass the operation rope through the hole or ring of the operation handle using an existing indirect hot line tool. Therefore, the work of inserting the operation rope through the hole or the ring is forced. For this reason, the work efficiency for attaching the operation rope is remarkably deteriorated, and since it is a direct live line, it is necessary to take sufficient safety measures.

  The present invention has been made in view of such circumstances, and provides a dedicated indirect hot wire tool for attaching an operation rope, and can be used to quickly and safely implement the operation rope attachment work. The main object is to provide an indirect hot wire tool for use and a method of attaching an operation rope using the tool.

  In order to achieve the above object, an indirect hot wire tool for attaching an operation rope according to the present invention includes a long and hollow cylindrical body and a bendable flexible tube attached to the tip of the cylindrical body. A first slit is formed on a side surface of the cylindrical body from the proximal end to the distal end along the axial direction of the cylindrical body, and the flexible member has a distal end opening. A second slit is formed on the side surface and communicates with the first slit from the base end to the tip end.

  Therefore, when the operation rope is attached to the hole of the operated member such as the operation handle or the ring attached to the hole using the indirect hot wire tool for attaching the operation rope, the operation rope is attached. The tip of the flexible member is inserted into the hole of the operated member or the ring attached to the hole, and the operation rope is inserted from the lower end of the cylindrical body in this state. By projecting from the opening of the distal end of the flexible member, it is inserted into the hole or the ring, and then the operation rope through which the hole or the ring is inserted hangs down from the operated member and the second slit And removing the portion of the operation rope in front of the hole or the ring from the flexible member and the cylindrical body through the first slit, thereby connecting the indirect live tool for attaching the operation rope to the operation rope. Taken from Remove.

  Then, after such an operation is repeated as necessary, the tip of the operation rope is formed in a ring shape so as to wind the portion of the operation rope in front of the hole or the ring, and this state is maintained. Then, if the ring-shaped portion is brought close to the hole or the ring while pulling the portion of the operation rope before the hole or the ring, the operation work for attaching the operation rope is completed.

  Therefore, even when the operation rope is attached to the operated member at a high place, it is not necessary to raise the pillar. Therefore, workability can be improved, and the operation rope can be attached safely.

  Here, the above-described indirect live tool for attaching the operation rope may be used alone, or may be used by being detachably attached to the common operation rod. The body is provided with connection means for juxtaposing the cylindrical body with respect to the common operation rod, and the connection means is detachably attached to the distal end portion of the common operation rod; and You may make it comprise with the 2nd connection part attached to the middle of a common operation rod so that attachment or detachment is possible.

  Further, the first slit fixes the tongue piece sheet, which can be deformed to the inside of the cylindrical body, to the one side edge of the first slit from the inside so that the tongue piece sheet is closed from the inside. It may be. With such a configuration, it is possible to prevent the operating rope passing through the inside of the cylindrical body and the flexible member from being carelessly detached from the slit.

  The flexible member may be formed in a bellows shape with a narrowed tip opening, or in order to smoothly guide the inserted operation rope to the tip opening. You may make it provide the lining which guides the operating rope inserted from a base end side to a front-end | tip opening part inside a flexible member.

  As described above, according to the indirect hot wire tool for attaching an operation rope according to the present invention, a long tubular body and a bendable tubular flexible member attached to the tip of the tubular body, The first slit is formed in the cylindrical body from the proximal end to the distal end along the axial direction of the cylindrical body, and the distal end opening of the flexible member is formed in a narrow shape In addition, since the second slit is formed in the flexible member from the proximal end to the distal end, the second slit communicating with the first slit is formed. By inserting it into the ring attached to the hole, and in that state, the operation rope is inserted through the inside of the tubular body and the flexible member and protrudes from the tip opening of the flexible member. Since the operation rope can be inserted into the ring attached to this hole, the operation rope is attached to the operated member. It is possible to mount quickly and safely by indirect hot work ring attached to the hole and the hole.

It is a whole lineblock diagram showing the indirect hot wire tool for operation rope attachment concerning the present invention. It is a figure which shows the flexible member provided in the front-end | tip of the cylindrical body of the indirect hot wire tool for operation rope attachment which concerns on this invention, (a) is the perspective view, (b) is cut | disconnected by the plane containing a slit FIG. It is a figure which shows the vicinity of the collar of the indirect hot wire tool for operation rope attachment which concerns on this invention, (a) is the perspective view, (b) is sectional drawing cut | disconnected by the AA line of (a), ( c) It is sectional drawing cut | disconnected by the BB line of (a). It is a figure which shows the attachment method of the operation rope using the indirect hot wire tool for operation rope attachment concerning this invention, (a) is a figure which shows the state which inserted the front-end | tip opening part of the flexible member in the hole of the operation handle. (B) is a figure which shows the state which inserted the operating rope from the lower end of the cylindrical body in the state of (a), and made it protrude from the front-end | tip of a flexible member. It is a figure which shows the attachment method of the operation rope using the indirect hot wire tool for operation rope attachment concerning this invention, and hangs down the operation rope inserted in the hole of the operation rope and grasps it with a hand, It is a figure which shows the state which removes a wire tool from an operating rope. It is a figure which shows the attachment method of the operation rope using the indirect hot wire tool for operation rope attachment which concerns on this invention, (a) is so that the front part of the operation rope may be wound in front of the hole of the operation rope It is a figure which shows the case where it forms in a ring shape and hold | maintains this state, (b) is a figure which shows the state which made the ring-shaped part adjoined to the hole part, pulling the front part rather than the hole of an operation rope. . (A) is a figure which shows a switch and the operating rope attached to this, (b) is a figure which shows the prior art example which shows the state which attached the operating rope to the hole of the operating handle of a switch, (c) These are figures which show the prior art example which shows the state which attached the operating rope to the ring attached to the hole of the operating handle of a switch.

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

  In FIG. 1, the state which attached the indirect hot wire tool 1 for operating rope attachment which concerns on this invention to the common operating rod 2 is shown.

  First, the common operation rod 2 will be described. The common operation rod 2 is known per se, and includes a rod-shaped body 21 and an attachment main body 22 to which a work tool can be detachably attached to the tip of the rod-shaped body 21. The base body 21 has a joint portion 23 that can be detachably mounted with another common operation rod or an extension rod.

  The rod-like body 21 has a linear rod-like shape formed in an insulating long and hollow shape (pipe shape), and a limit collar 24 for preventing an electric shock accident is provided at a substantially intermediate position in the axial direction. Yes. Even if the base end side is gripped with the limit collar 24 as a boundary, it is a part where there is a possibility of electric shock if the tip side is gripped from the limit collar 24, and the limit collar 24 and the joint portion 23 A grip portion 25 that can be gripped by the worker is formed between them, and the worker is required to grip the grip portion 25 to work. Further, a collar for draining water (draining collar 26) at the time of raining is fitted and fixed to the front end side (substantially the center between the limit collar 24 and the attachment body 22) of the rod-shaped body 21. These limit collar 24 and draining collar 26 are made of soft synthetic rubber or the like.

  The attachment main body 22 is for mounting a joint portion of another work implement, and a pair of locking projections 22a are provided on the circumferential surface of the attachment main body 22 at a position on the opposite side in the circumferential direction. Projecting in a radial direction at a position that is 180 ° out of phase. Further, a hole (not shown) is formed in the center of the attachment main body 22 substantially at the center, and a convex member 22b projects from the space formed inside the attachment main body 22 through the hole. The convex member 22b is always urged in the protruding direction by a built-in spring (not shown) housed in a space in the attachment main body 22, and can be displaced in the axial direction.

  Further, a flange 27 projecting outward from the outer peripheral surface of the rod-shaped body 21 is provided on the proximal end side of the rod-shaped body 21 from the attachment body 22, and between the flange 27 and the attachment body 22, A lock nut 28 that can move along the axial direction on the outer peripheral surface of the rod-shaped body 21 is provided.

  On the other hand, the joint part 23 is formed in a bottomed cylindrical shape whose base end is opened so that an attachment body of another common operation rod or an extension rod can be inserted. T-shaped engagement grooves 29 are formed on the peripheral surface at two opposing positions.

  The engagement groove 29 includes a first groove 29a cut in the direction along the axis of the rod-shaped body 21, a second groove 29b cut in the circumferential direction from the tip of the first groove 29a, The second groove portion 29b includes a third groove portion 29c cut from the opposite end portion of the second groove portion 29b toward the proximal end side along the axis of the joint portion.

  The indirect hot wire tool 1 for attaching an operation rope attached to the above-described common operation rod 2 is a long and hollow tubular body 11 and a bendable tubular body attached to the tip of the tubular body 11. And a flexible member 12.

  The cylindrical body 11 is made of a hard insulating material, and a first slit 13 is formed on a side surface of the cylindrical body 11 from the proximal end to the distal end along the axial direction of the cylindrical body.

  The flexible member 12 is made of a softer material than the cylindrical body 11, and as shown in FIG. 2, a narrow opening (tip opening 14) is formed at the tip. The whole is formed in a bellows structure. Further, a second slit 15 communicating with the first slit 13 is formed on the side surface from the base end to the tip end.

  The cylindrical body 11 and the flexible member 12 are integrated by welding, bonding with an adhesive, or the like, and the tip opening 14 of the flexible member 12 is directed in an arbitrary direction. An arbitrary angle can be set with respect to the axis of the body 11.

  The cylindrical body 11 is attached so as to be parallel to the common operation rod 2, and the first connecting portion 16 is detachably attached to the attachment main body 22 provided at the tip of the common operation rod 2. And in the middle of the common operation rod 2, in this example, a second connecting portion 17 detachably attached to the limit collar 24 is provided.

  The first connecting portion 16 is fixed to the tip of an arm member 32 in which a joint portion 31 having the same configuration as the joint portion 23 of the common operation rod 2 is projected radially outward from the cylindrical body 11. Thus, the joint portion 31 is formed in a bottomed cylindrical shape whose base end is opened so that the attachment main body 22 can be inserted, and T-shaped engagement grooves are formed at two opposing positions on the peripheral surface thereof. 33 is formed.

  The engaging groove 33 includes a first groove 33a cut in the direction along the axis of the cylindrical body 11, a second groove 33b cut in the circumferential direction from the tip of the first groove 33a, The second groove portion 33b includes a third groove portion 33c cut from the end portion on the opposite side to the first groove portion 33a toward the proximal end side along the axis of the cylindrical body 11.

  The second connecting portion 17 includes a fixed arm member 35 provided with a holding portion 35a that protrudes radially outward from the cylindrical body 11 and is curved at the tip according to the side shape of the common operation rod. A movable arm is provided that is rotatably attached to the fixed arm member 35 and includes a clamping portion 36a having a distal end curved in accordance with the side shape of the common operation rod 2 so as to sandwich the common operation rod 2 from the side together with the fixed arm member 35. And an arm member 36. A bolt 37a into which a butterfly screw 37b is screwed is rotatably provided at the distal end portion of the movable arm member 36, and the bolt 37a is inserted into a slit 37c formed at the distal end portion of the fixed arm member 35 to be inserted into the butterfly screw. By tightening with 37b, the common operation rod 2 disposed between the holding portion 35a of the fixed arm member 35 and the holding portion 36a of the movable arm member 36 can be held and fixed therebetween.

Therefore, when attaching the attachment main body 22 of the common operation rod 2 to the joint portion 31 of the first connecting portion 16, first, the lock nut 28 is turned to bring the lock nut 28 into contact with the flange 27 provided below. It is displaced to the unlocking position, and in that state, the attachment body 22 of the common operation rod 2 is inserted into the joint portion 31 and the locking protrusion 22a is inserted into the first groove portion 33a of the engaging groove 33, and then The attachment main body 22 is pressed in the axial direction, the convex member 22b protruding from the tip is sunk against the elastic force of the built-in spring, and in this state, the attachment main body 22 is rotated so that the locking protrusion 22a is second. Then, the axial force of the attachment main body 22 is released and the attachment force is applied by the urging force of the convex member 22b. By returning the reinforcement body 22 in the axial direction, the locking projections 22a engage the irremovably to the third groove 33c.
Then, after the above operation is completed, in order to prevent the above-described rattling of the attached state, the lock nut 28 is turned to lock the lock nut 28 strongly against the joint portion 31 of the first connecting portion 16. What is necessary is just to displace to a position.

  The second connecting portion 17 is attached to the common operation rod 2 by placing the common operation rod 2 between the holding portion 35a of the fixed arm member 35 and the holding portion 36a of the movable arm member 36. The movable arm member 36 is rotated so that the common operation rod 2 is sandwiched between the holding portions 35 a and 36 a of both arm members 35 and 36, and a bolt 37 a rotatably provided on the movable arm member 36 is attached to the distal end of the fixed arm member 35. After being inserted into the slit 37c formed, the wing screw 37b may be fastened and fixed.

  The first slit 13 is provided on the side opposite to the arm members 32 and 35. Therefore, the second slit 15 of the flexible member 12 is also the side on which the common operation rod 2 is provided. Formed on the opposite side, the flexible member 12 is bent so that the second slit 15 is on the inside.

  Further, in the vicinity of the base end portion of the cylindrical body 11 of the above-described indirect live tool 1 for attaching the operation rope and in the middle thereof, they are juxtaposed in correspondence with the limit collar 24 and the draining collar 26 of the common operation rod 2. As shown, a limit collar 18 and a draining collar 19 are provided. Further, as shown in FIG. 3, a tongue piece sheet 41 provided so as to close the first slit 13 is provided inside the cylindrical body 11.

  The tongue piece sheet 41 is a sheet-like sheet member made of a flexible member such as synthetic rubber, and is bonded to the inside of the cylindrical body 11 along one side edge of the first slit 13 with an adhesive, a screw or the like. And is attached so as to close the first slit 13 from the inside. Therefore, the tongue piece sheet 41 can be separated from and brought into contact with the other side edge of the first slit 13, and in a normal state, the tongue piece sheet 41 is brought into contact with the other side edge so that the inner side of the cylindrical body 11 is covered. The operating rope 50 to be passed is prevented from inadvertently coming out of the cylindrical body 11 from the first slit 13. Further, the operation rope 50 arranged inside the cylindrical body 11 is elastically deformed inside the cylindrical body 11 so as to be separated from the other side edge, and the outside of the cylindrical body 11 is arranged via the first slit 13. Can be removed.

  The tongue sheet 41 is not provided in the portion where the collar (limit collar 18, draining collar 19) is attached in order to avoid interference with the collar, and the first slit excluding this collar portion is provided. 13 is provided over almost the entire length.

  The collars (limit collar 18, draining collar 19) provided on the cylindrical body 11 are provided over substantially the entire circumference of the outer peripheral surface of the cylindrical body 11, and the cylindrical body via the first slit 13. 11, the outer portion of the cylindrical body 11 has a larger amount of protrusion from the outer peripheral surface of the cylindrical body 11 toward the lower side, and the inner portion of the cylindrical body 11 is The protrusion is formed in such a shape that the amount of protrusion from the inner peripheral surface of the cylindrical body 11 increases toward the top.

  Further, inside the flexible member 12, as shown in FIG. 2B, a guide that smoothly guides the operation rope 50 inserted from the base end side to the distal end opening 14 of the flexible member 12. A lining 42 that functions as a wall is provided. The lining 42 is provided so as to cover the inner surface of the flexible member 12 on the side opposite to the portion where the second slits 15 are provided, and has an inner surface without an uneven shape. The lining 42 has a lower end abutting on the upper inner surface of the cylindrical body 11 with almost no step, and an upper end extending to the vicinity of the tip opening 14. In this example, the second slit 15 is provided. It is provided so as to cover the inner surface on the side opposite to the portion where it is located over a range of about 180 degrees.

  Next, an attachment procedure for attaching the operation rope to the operation handle (operated member) using the operation wire attachment indirect hot wire tool 1 in the above configuration will be described with reference to FIGS. Here, after the old operation rope or debris attached to the operation handle 101 of the switch is removed, the operation rope 50 is passed through the hole 103 formed in the operation handle 101 to the end of the operation handle 101. The case of direct attachment will be described.

  First, the indirect hot wire tool 1 for attaching the operating rope is mounted on the common operation rod 2 and the flexible member 12 is placed so that the second slit 15 is inside (the flexible member 12 is connected to the common operation rod 2). Bend it to the desired angle. Then, holding the common operation rod 2 by hand, approaching the end opening 14 of the flexible member 12 of the operation line attaching indirect hot wire tool 1 toward the end of the operation handle 101 of the switch, FIG. As shown in (a), the distal end opening 14 of the flexible member 12 is inserted into the hole 103 of the operation handle 101.

  Thereafter, while maintaining the state in which the distal end opening 14 of the flexible member 12 is inserted into the hole 103 of the operation handle 101, the distal end of the operation rope 50 is inserted from the lower end of the tubular body 11, and the operation rope 50 is directly attached to the cylinder. The tubular body 11 and the flexible member 12 are inserted so as to be pushed up into the inside of the cylindrical body 11, and the operation rope 50 is protruded from the distal end opening 14 of the flexible member 12 (FIG. 4B). . As a result, the operation rope 50 is inserted into the hole 103 of the operation handle 101.

  After that, as shown in FIG. 5, the operation rope 50 that is suspended by being inserted through the hole 103 of the operation handle 101 is grasped by hand together with the portion of the operation rope in front of the hole 103, and the indirect live tool 1 for attaching the operation rope. The portion of the operation rope 50 in front of the hole 103 is inclined to the outside of the flexible member 12 through the second slit 15, and then the operation rope 50 is formed into a cylindrical body via the first slit 13. The upper part of the tubular body 11 is moved away from the operation rope 50 so as to be removed from the outer face 11, and the tongue 50 is deformed from between the tongue piece sheet 41 and the inner wall of the tubular body 11 while the tongue piece sheet 41 is deformed. Pull out through the first slit 13, and further move the tubular body 11 away from the operation rope 50 as it is to remove the operation rope 50 to the outside of the tubular body 11 through the first slit 13. Thereby, the indirect hot wire tool 1 for attaching the operation rope is in a state of being separated from the operation rope 50.

  Then, after the above operation is repeated twice, for example, as shown in FIG. 6A, the tip 50a of the operation rope 50 is formed into a small ring shape so as to involve the portion of the operation rope 50 in front of the hole 103. In order to form and maintain this state, the distal end portion 50a of the operation rope 50 is manually tightened with the bind line 51.

  Then, the portion in front of the hole 103 of the operation rope 50 is pulled downward, and the ring-shaped portion of the operation rope 50 is brought close to the hole 103 portion of the operation handle 101 as shown in FIG. When the rope 50 is tightened, the rope 50 can be fixed to the end of the operation handle 101, and then the extra length on the lower end side of the rope 50 is appropriately cut to a desired length. The installation work of 50 is completed.

  Therefore, even when the operation rope 50 is attached to the operation handle 101 at a high place, it is possible to attach the operation rope 50 without having to bother to climb the column, and the operation handle can be quickly and reliably and safely operated by indirect hot-line work. The operation rope 50 can be attached to 101.

  Moreover, according to the above-mentioned structure, since the tongue piece sheet | seat 41 which can be bent only to the inner side is fixed to the one side edge of the 1st slit 13 from the inner side, the operation rope 50 is consciously attached to the cylindrical body 11. As long as it is not intended to be removed, there is no inconvenience that the operation rope 50 passing through the inside of the cylindrical body 11 is inadvertently detached via the first slit 13.

  Further, in the portion where the collars 18 and 19 are provided, the inner portion of the cylindrical body 11 is formed in a shape such that the protruding amount increases from the inner peripheral surface of the cylindrical body as it goes upward, and is flexible. Since the inner liner 42 for guiding the operation rope inserted from the proximal end side to the distal end opening 14 is provided inside the elastic member 12, the operation rope 50 inserted into the cylindrical body 11 or the flexible member 12 is provided. The tongue piece sheet 41 and the flexible member 12 do not get caught inside, and a smooth pushing operation of the operation rope 50 becomes possible.

  In the above configuration example, the indirect hot wire tool 1 for attaching the operation rope is shown attached to the common operation rod 2, but it is also possible to use it alone without attaching it to the common operation rod 2. . Further, in the above-described example, the work example in which the operation rope is attached to the hole 103 of the operation handle 101 of the switch 100 is described, but the ring 104 attached to the hole 103 of the operation handle 101 (shown in FIG. 7C). When the operation of attaching the operation rope 50 to the ring 104 is performed, the above-described operation may be performed in the same manner by attaching the tip opening 14 of the flexible member 12 so as to be inserted into the ring 104.

DESCRIPTION OF SYMBOLS 1 Indirect hot wire tool for operation rope attachment 2 Shared operation rod 11 Cylindrical body 12 Flexible member 13 1st slit 14 Tip opening part 15 2nd slit 16 1st connection part 17 2nd connection part 41 Tongue Single sheet 42 Lining 50 Operation rope 100 Switch 101 Operation handle 103 Hole 104 Ring

Claims (4)

A long and hollow tubular body and a bendable tubular flexible member attached to the tip of the tubular body;
The cylindrical body is formed with a first slit on the side surface from the base end to the tip end along the axial direction of the cylindrical body,
The flexible member has a tip opening portion formed in a narrow shape, and a second slit that communicates with the first slit from the base end to the tip end is formed on the side surface. Indirect hot wire tool. The cylindrical body is provided with connecting means for juxtaposing the cylindrical body with respect to the common operation rod,
This connection means is comprised from the 1st connection part detachably attached to the front-end | tip part of the said common operation rod, and the 2nd connection part attached to the middle of the said common operation rod so that attachment or detachment is possible. The indirect hot wire tool for attaching an operation rope according to claim 1.   The first slit is closed from the inside by fixing the tongue piece sheet that can be deformed to the inside of the cylindrical body from the inside to one side edge of the first slit. The indirect hot wire tool for operating rope attachment according to claim 1 or 2. The operation rope according to any one of claims 1 to 3, wherein a lining for guiding an operation rope inserted from a proximal end side to the distal end opening is provided inside the flexible member. Indirect hot wire tool for mounting.

Images