JP3929550B2 - Support device for temporary electrical connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a support device used to support a temporary electrical connection device for temporary connection in order to temporarily bypass a high-voltage pull-down line of a utility pole to another location.
[0002]
[Prior art]
Conventionally, when performing maintenance, inspection or replacement of a distribution transformer 2 or a distributor (not shown) installed on a pole 1 as shown in FIG. By using the electric wire temporary connection tool 3 to which is fixed, it is possible to work without interruption. That is, the electric wire temporary connection instrument 3 is in a state where the connection fitting 7 in which one end of the bypass line 8 is connected in an electrically connected state is temporarily fixed to the high voltage underline 10 wired from the high voltage overhead wire 9 to the transformer 2. It is fixed in a vertical state to a support fitting 13 attached to a rod-like support 12 supported in a cantilever manner on the utility pole 1.
[0003]
Subsequently, after connecting the other end of the bypass line 8 to a spare transformer (not shown), the connection fitting 7 is remotely operated by the operation portion 11 at the rear end of the insulating support bar 4. By breaking the tooth-shaped conductor clip of the high voltage underline 10 and bringing the conductor into electrical connection with the conductor, the backup transformer can be connected to the high voltage overhead line 9 and power can be supplied to ordinary households. It becomes a state. Therefore, since the high-voltage underline 10 is short-circuited by the bypass line 8, maintenance and inspection are performed with the transformer 2 removed or left as it is.
[0004]
Further, as shown in FIG. 6, the support fitting 13 for fixing the electric wire temporary connection device 3 to the support 12 includes a ring-shaped fixing portion 14 through which the support 12 is inserted, and the fixing portion 14. The fixing screw body 17 screwed into the screw hole, the fixed side holder part 18 integrally formed with the fixing part 14, and the fixed side holder part 18 are rotatably attached to the fixed side holder part 18 via the support pins 19. The movable side holder part 20 is constituted by a holding screw body 21 which is fixedly screwed into the screw hole of the movable side holder part 20 and can be screwed into the screw hole of the fixed side holder part 18.
[0005]
The support fitting 13 fixes the electric wire temporary connection device 3 to the support 12 in the following procedure. That is, in a state where the fixing portion 14 is attached to the support 12 in an inserted state, the movable side holder portion 12 is opened as indicated by a two-dot chain line, and the insulating support rod 4 in the electric wire temporary connection device 3 is connected to the fixed side holder portion 18. After the predetermined portion is fitted, the movable side holder portion 20 is rotated and overlapped with the fixed side holder 18, and the holding screw body 21 is screwed into the screw hole of the fixed side holder portion 18 and tightened. The electric wire temporary connection device 3 is clamped and fixed by the holder portions 18 and 20. Next, after the fixing portion 14 is slid on the support 12 and moved to a position where the electric wire temporary connection device 3 can be supported in a vertical state, the fixing screw body 17 is screwed and the tip thereof is supported by the support. The fixing part 14 is fixed to the support 12 by being brought into pressure contact with 12.
[0006]
[Problems to be solved by the invention]
However, the above-mentioned support metal fitting 13 is used for tightening the fixing screw body 17 for fixing the fixing portion 14 to the support tool 12 and for holding the electric wire temporary connection device 3 by the holder portions 18 and 20. Since two types of operations including the tightening operation of the screw body 21 are required, there is a problem that workability for fixing the electric wire temporary connection device 3 is poor.
[0007]
Moreover, since this support metal fitting 13 supports the electric wire temporary connection tool 3 in the orthogonal state with respect to the support tool 12, the electric wire temporary connection tool 3 is attached to the support tool 12 attached to the utility pole 1 in a horizontal state. On the other hand, it is inevitably supported in a vertical state. On the other hand, generally, a plurality of high-voltage underlines 10 are connected to the pole transformer 2, and as many temporary electrical connection devices 3 as the number of the high-voltage underlines 10 are required. In this case, as is clear from FIG. 5, the horizontal arrangement of the plurality of temporary electric wire connecting devices 3 is matched with the arrangement of the high-voltage overhead wire main line 9, so that there is a large interval. Therefore, the length of the support 12 supported in a cantilever manner on the utility pole 1 becomes long, and the support of the plurality of temporary electrical connection devices 3 becomes unstable, and the installation space is long in the horizontal direction due to work at a high place. Further, since a plurality of electric wire temporary connection devices 3 must be supported, workability is further deteriorated.
[0008]
Then, this invention provides a high voltage electric wire temporary connection tool which can fix a electric wire temporary connection tool by one operation while it can support a plurality of electric wire temporary connection tools in a short installation space in the horizontal direction. It is the purpose.
[0009]
[Means for Solving the Problems]
To achieve the above object, the present invention provides a wire temporary connection tool comprising fitting is provided at the upper end of the insulating support rod, the support device for fixing the support which is supported in a horizontal state, before Symbol support the mounting portion of the cross-sectional C-shaped for inserting the tool, made up of a mounting member and a with a pair of fastening pieces extending integrally from the mounting portion, and the fixed-side holder portion and rotation-side holder portion, these Are pivotally connected at the base end, a support member formed with a holding surface for sandwiching the insulating support rod at the base end portions of both holders, a fastening member, and the attachment member at one end portion, A fastening shaft in which the fastening member is screwed to the other end portion, and the support member is arranged in the middle portion, and a fastening piece on the outer side of the mounting member is fixed to the supporting shaft, The fastening piece on the side is configured to be movable in the axial direction of the support shaft, and the support member is fixed. A side holder portion is slidably attached to the support shaft and pivotable about its axis, so that the movable side holder portion can be pivoted to a position where its distal end is pushed by the fastening member. The clamping member is tightened so as to be screwed in the direction of one end of the support shaft, and the movable side holder portion of the support member is pressed and moved closer to the fixed side holder portion. The support member is deformed into a reduced diameter state by sandwiching the insulating support rod into the inner member and simultaneously pressing the outer fastening piece of the attachment member to approach the inner fastening piece. It is comprised so that it may be inserted | pinched.
[0010]
The supporting device of the wire tentative connection device only performs a fastening operation of the fastening member, to perform fixing of the insulating support rods of the wire temporary connection device of the support member, the fixing of the support by the mounting member simultaneously Workability is greatly improved.
[0011]
Further, in the temporary holding state in which the tightening member is not tightened, the support member can freely rotate about the support shaft with respect to the mounting member attached to the support tool. By tilting, the mounting member can be moved to a position as close as possible to the utility pole side while sliding on the support. As a result, the support tool can be shortened to approximately half the length of the conventional tool, and a plurality of temporary electrical connection devices can be stably supported in a short space in the horizontal direction.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a supporting device 22 for a temporary electrical wire connecting device according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof. The support device 22 has a male screw portion 24 formed on the outer peripheral surface of a predetermined portion of the support shaft 23, and an attachment member 27 to the support tool 12 is fixed to one end portion of the support shaft 23. The attachment member 27 has an attachment portion 27a having a C-shaped cross section through which the support tool 12 is inserted, and a pair of fastening pieces 27b and 27c extending integrally and parallel from the attachment portion 27a. As shown in FIG. 2, the mounting member 27 has an outer side fastening piece 27 b fitted and fixed to the support shaft 23, and an inner side fastening piece 27 c slightly with respect to the support shaft 23. It can move with a gap. In addition, a bush 25 having a C-shaped cross section is attached to the inner peripheral surface of the mounting portion 27a to be securely fixed to the support tool 12.
[0013]
A support member 28 of the electric wire temporary connection device 3 is attached to the support shaft 23 adjacent to the attachment member 27. The support member 28 includes a fixed-side holder portion 29 that is rotatably attached to the support shaft 23, and a movable-side holder portion 30 that is rotatably connected to the fixed-side holder portion 29 via a support pin 31. have. As shown in FIG. 2, the fixed-side holder portion 29 is restricted from moving away from the mounting member 27 by a C-shaped retaining ring 32 fixed to the support shaft 23. A flat washer 33 is provided between the C-shaped retaining ring 32 and the fixed-side holder portion 29 so that the fixed-side holder portion 29 can be smoothly rotated with respect to the support shaft 23. On the other hand, the free end of the movable holder 30 has a bifurcated shape that can be inserted into and removed from the support shaft 23. A rubber sheet 26 is attached to each of the holding surfaces 29a and 30a having a semicircular cross section of both the holder portions 29 and 30, and the rubber sheet 26 is in close contact with the insulating support rod 4 to temporarily connect the wires. The instrument 3 can be supported stably. As shown in FIG. 2, two tooth-shaped rings 34 are interposed between the attachment member 27 and the support member 28 in the support shaft 23.
[0014]
A fastening member 37 that can be screwed into the male threaded portion 24 of the support shaft 23 is attached to a portion in the vicinity of the other end of the support shaft 23, and the fastening member 37 is attached to the other end portion of the support shaft 23. A lock nut 38 for preventing the shaft 23 from coming off is fastened and fixed. Further, a flat washer 39 is provided between the support member 28 and the fastening member 37 on the support shaft 23.
[0015]
Next, a procedure for supporting the temporary wire connector 3 on the support 12 by the support device 21 of the above embodiment will be described. FIG. 3 is a plan view showing a state in which the three support devices 22 are attached to the support 12. A metal fitting main body 41 of the contact metal fitting 40 is fixed to one end portion of the support 12, and one end of a winding belt 42 to be wound around and attached to the utility pole 1 is connected to the contact metal fitting 40. The other end of 42 is provided with a hook portion 43 for latching on the locking hole 40a of the contact fitting 40, and a stopper 44 is provided on the attachment portion of the winding belt 42 of the contact fitting 40. Yes.
[0016]
FIG. 4 is a front view showing a state in which the three electric wire temporary connection devices 3 are supported by the utility pole 1 via the support 12. The support 12, after the contact metal fitting 40 is applied to a predetermined side surface of the utility pole 1 and the winding belt 42 is wound around the utility pole 1, the hook portion 43 is hooked on the locking hole 40 a of the contact metal fitting 41. When the stopper 44 is operated, the support 12 is supported in a cantilever manner in a horizontal state on the utility pole 1. Three support devices 22 are attached to the support 12 by inserting the attachment portions 27 a of the attachment members 27.
[0017]
When the electric wire temporary connection device 3 is attached to these support members 12, the support member 28 is moved in the state where the tightening member 37 is loosened and moved to the rear of the support shaft 23, as in the support member 28 shown at the left end of FIG. 3. In the state where the movable side holder part 30 is opened as shown by a two-dot chain line in the same figure, the required part of the insulating support rod 4 of the temporary electric wire connecting device 3 is fitted into the holding surface 29 a of the fixed side holder part 29. Subsequently, the movable side holder part 30 is rotated so that the insulating support bar 4 is fitted into the holding surface 30a thereof, and the insulating support bar 4 is sandwiched between the holding surfaces 29a and 30a of the holder parts 29 and 30, The electric wire temporary connection tool 3 is temporarily held by the support tool 12.
[0018]
In the state where the wire temporary connection device 3 is temporarily held by the support 12, the support member 28 can freely rotate about the support shaft 23 with respect to the attachment member 27 attached to the support 12. Therefore, as shown in FIG. 4, the support member 28 is rotated to tilt the electric wire temporary connection device 3, thereby bringing the attachment member 27 as close as possible to the utility pole 1 side while sliding the support member 12. Can be moved to a position. As a result, the support tool 12 can be shortened to approximately half the length of the conventional tool, and the plurality of temporary electrical connection devices 3 can be stably supported in a short space in the horizontal direction. .
[0019]
When the position at which the electric wire temporary connection device 3 is supported by the support 12 is determined, the tightening member 37 is screwed into the male screw portion 24 of the support shaft 23 and then tightened. Thereby, in the support member 28, the movable side holder part 29 is rotated so as to be pressed against the fixed side holder part 30, and the insulating support bar 4 is firmly fixed by the holding surfaces 29a, 30a of the holder parts 29, 30 respectively. Securely support by pinching. At the same time, the support member 28 slidably attached to the support shaft 23 is pressed and moved toward the attachment member 27 as the fastening member 37 is tightened. Thereby, in the attachment member 27, the fastening piece 27c on the support member 28 side is bent, and the attachment portion 27a is slightly deformed into a reduced diameter state, so that it is securely fixed to the support tool 12. That is, in the support device 22, the support member 28 can be fixed to the temporary electric wire connecting device 3 and the attachment member 27 can be fixed to the support tool 12 simultaneously only by tightening the tightening member 37. In addition to the fact that the plurality of support devices 22 can be arranged as close as possible to the utility pole 1, workability at a high place is remarkably improved.
[0020]
【The invention's effect】
As described above, according to the support device for a temporary wire connection tool of the present invention, the fixing member is fixed to the insulating support rod of the temporary wire connection device and the support member by the mounting member only by performing the tightening operation of the tightening member. Can be performed at the same time, and workability is greatly improved.
[0021]
Further, in the temporarily held state in which the tightening member is not tightened, the support member can be rotated with the support shaft as a fulcrum with respect to the mounting member. By inclining, the mounting member can be moved to a position as close as possible to the utility pole side while sliding on the support. As a result, the support tool can be shortened to approximately half the length of the conventional tool, and a plurality of temporary electrical connection devices can be stably supported in a short space in the horizontal direction.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a support device for a temporary wire connector according to an embodiment of the present invention.
FIG. 2 is a sectional view of the supporting device.
FIG. 3 is a plan view showing a state where three support devices are attached to the support.
FIG. 4 is a front view of a state in which the electric wire temporary connection device is supported on the utility pole by the support tool same as above.
FIG. 5 is a front view of a state in which the electric wire temporary connecting device is supported on the utility pole by a conventional support tool.
FIG. 6 is a plan view of a support for a conventional temporary electrical wire connection tool.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 3 Electric wire temporary connection instrument 4 Insulation support rod 7 Connection metal fitting 12 Support tool 22 Support apparatus 23 Support shaft 24 Male screw part 27 Attachment member 27a Attachment part 27b, 27c Fastening piece 28 Support member 29 Fixed side holder part 29a Holding surface 30 Movable side Holder part 30a Holding surface 37 Tightening member

Claims (1)

In the support device for fixing the electrical wire temporary connection device in which the connection fitting is provided on the upper end portion of the insulating support rod to the support device supported in a horizontal state ,
The mounting portion of the cross-sectional C-shaped for inserting the pre-Symbol support, a mounting member and a with a pair of fastening pieces extending integrally from the mounting portion,
Consists of a stationary holder part and the rotation-side holder portion, together with these is pivotal connected at a proximal end, a support member retaining surfaces sandwiching the insulating support rod to the proximal end of both holders are formed respectively,
A fastening member;
The mounting member is arranged at one end, the fastening member is screwed at the other end, and a support shaft at which the support member is arranged at an intermediate portion;
An outer side fastening piece of the mounting member is fixed to the support shaft, and an inner side fastening piece is configured to be movable in the axial direction of the support shaft,
A fixed holder portion of the support member is attached to the support shaft so as to be slidable and rotatable about its axis, and the movable side holder portion is rotated to a position where the tip portion is pushed by the fastening member. Configured to move,
By tightening the tightening member so as to be screwed toward one end portion of the support shaft, the movable side holder portion of the support member is pressed to approach the fixed side holder portion to thereby insulate the insulation between the two holding surfaces. The support rod is sandwiched, and at the same time the outer fastening piece of the mounting member is pressed to approach the inner fastening piece to deform the mounting portion into a reduced diameter state so as to sandwich the support tool. Configured
A device for supporting an electrical wire temporary connecting instrument.

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