JPH11176266A - Insulator cleaner - Google Patents

Abstract

(57) [Abstract] [Problem] It is possible to clean even a slightly larger insulator than the insulator that was the object of cleaning at the time of design, remove the main body frame from the insulator at an angle position other than the insulator attachment / detachment angle position, and then operate the operating rod with easy operation Provided is an insulator cleaner that can fix the insulator to an insulator attachment / detachment angle position. SOLUTION: A holding arm 12 of an insulator 11 is supported by a main body frame 15 by an arm support 18 which rotates in a direction away from each other.
, It can be cleaned even if it is slightly larger than the insulator 11 to be cleaned at the time of design. The shaft attachment portion 16 that connects the operation rod 17 to the frame 15 is
3, a stopper member 51 with a fitting portion 51a, a second spring 57 between the frame 15 and the member 51,
4, the frame 15 is extracted from the insulator 11 at an angular position other than the insulator attachment / detachment angle position, and after the extraction, the rod 17 can be fixed at the insulator attachment / detachment angle position by a simple operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator cleaner for cleaning an insulating insulator interposed between, for example, a high-voltage electric wire installed on a rail of a train and a utility pole.

[0002]

2. Description of the Related Art Conventionally, as an insulator cleaning device for removing dirt adhering to the surface of an insulator of a high-voltage electric wire in a live state (energized state), for example, an insulator cleaning device described in Japanese Patent Publication No. 35-3726 is disclosed. Are known. This one is
A cleaning brush for removing dirt on the surface of the insulator, a pair of gripping arms for rotatably gripping the insulator from both sides, water supply means for supplying cleaning water to the surface of the insulator, and a main body frame on which these are arranged. And an insulating operating rod rotatably connected to the main body frame via a shaft attachment portion.

At the time of cleaning the insulator, first, both gripping arms are rotatably held on the insulator, and by pushing and pulling the operating rod in this state, water is supplied from the water supply means to the insulator, and the shaft attaching portion is provided. , The body frame is rotated in the circumferential direction of the insulator, and the surface of the insulator is brushed with a cleaning brush. When removing the main body frame from the insulator, first, a hook fixed to the tip of the operating rod is hooked on a hook pin provided upright near a shaft attachment portion of the main body frame. Thereby, the operation rod that was rotatable until then is positioned at an angular position that is arranged at right angles to the main body frame.
Fix to the insulator attachment / detachment angle position. Thereafter, the gripping arm is detached from the insulator by strongly pulling the operation rod, and the main body frame is removed from the insulator.

[0004]

However, such a conventional insulator cleaning device has the following problems. (1) Since the distance between the gripping arms provided on the main body frame is constant, for example, a normal-standard insulator can be cleaned, but in the case of an insulator slightly larger than that, the gripping arm is replaced with the insulator. I couldn't hold her and couldn't clean it. (2) When removing the main body frame from the insulator, it is necessary to hook the hook of the operating rod to a hook pin of the main body frame and fix the operating rod to the insulator attaching / detaching angular position of the main body frame. If the hook is pulled out of the main body frame at a position other than the insulator attachment / detachment angle position where the operation rod is broken, and the hook is pulled out of the hook pin, the cleaning He had to get down from a place with bad scaffolding while shaking the main body frame weighing around 10 kg to the tip of an operation rod several meters long. This is because it is difficult to lock the hook with the locking pin because there is no hollow against the body frame.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an insulator cleaner which can clean even an insulator slightly larger than the insulator which was to be cleaned at the time of design. Further, the present invention provides an insulator cleaning device which can remove the main body frame from the insulator at an angle position other than the insulator attachment / detachment angle position and, after the extraction, can fix the operating rod at the insulator attachment / detachment angle position of the body frame by a simple operation. Its purpose is to provide vessels. It is a further object of the present invention to provide an insulator cleaner that can automatically operate the fitting releasing means without a driving unit.

[0006]

According to a first aspect of the present invention, a gripping arm, which is arranged in a pair with a main body frame, is rotatably held on an insulator via a shaft attaching portion to the main body frame. By pushing and pulling the insulative operation rod which is axially attached, the cleaning brush provided on the main body frame is rotated while rotating the main body frame in the circumferential direction of the insulator around the axial attachment portion. In the insulator cleaning device for cleaning the surface of the insulator, each of the gripping arms is a predetermined distance between an arm support that is rotatably provided on the main body frame in a direction away from each other and a distance between the arm support and the arm support. A first spring for rotating the arm, which is maintained at a predetermined angle, and by rotating each of the arm columns in a direction away from each other against the force of the first spring, each of the gripping arms is moved. Rotate in the same direction It is a child cleaner.

[0007] Examples of insulators to be cleaned include suspension insulators, long trunk insulators, smog insulators, ball socket insulators, and the like. The number of gripping arms is one pair, two pairs,
There may be three or more pairs. The insulating operation rod may be made entirely of an insulating material, or only a part thereof may be made of an insulating material. The length of the operating rod is not limited. Further, for good portability, for example, the operation rod may be divided into a plurality of short partial rods, and these may be detachably connected at the site. The insulator cleaning device may be provided with a water supply means for supplying water to the insulator at the time of cleaning to enhance the brushing effect of the cleaning brush. As a specific example of the water supply means, for example, a water supply tank is attached to the main body frame, and water in this tank is injected or sprayed onto the surface of the insulator via a water supply pipe. Further, the cleaning brush may be pressed against the insulator in conjunction with the gripping of the insulator by the gripping arm. As described above, these matters also correspond to claim 2.

According to a second aspect of the present invention, there is provided an insulating member which is pivotally attached to the main body frame via a pivot portion while the gripping arm arranged opposite to the main frame is rotatably held on the insulator. By pushing and pulling a sex operation rod, the surface of the insulator is cleaned by a cleaning brush provided on the body frame while rotating the body frame around the shaft attachment portion in the circumferential direction of the insulator. In insulator cleaner,
The structure of the shaft attachment portion connecting the operation rod to the main body frame has a shaft body having one fitting portion on the outer peripheral portion, and has the other fitting portion, and is movably attached to the main body frame. When the two fitting portions are fitted to each other, a stopper member for fixing the rotatable operation rod to the insulator attachment / detachment angle position, and the other fitting portion of the stopper member interposed between the main body frame and the stopper member. A second spring for fitting the two fitting portions, which always presses the mating portion against the outer peripheral portion of the shaft body, and a stopper provided on the main body frame and for directly pressing the stopper member from outside; A push-out member is provided, and this stopper push-out member is moved,
An insulator cleaning device comprising: a fitting releasing means for releasing the fitting of the two fitting portions by pushing the stopper member in the fitting releasing direction against the force of the second spring.

The shape of the fitting portion between the shaft and the stopper member may be arbitrary. The position where the one fitting portion is formed is not limited to the shaft itself, but may be, for example, a flange attached to the shaft. The shape and the moving direction of the stopper member are not limited. For example, the stopper member may move or rotate in a linear direction. The insulator attachment / detachment angle position to which the operation rod is fixed is usually an angle position where the operation rod is substantially perpendicular to the main body frame. However, when the cleaning operator grips the operation rod and handles the heavy body frame, the angle position is not limited as long as it is easy to handle.

[0010] As the stopper push-out member, for example, protrusions such as a pin can be cited. The moving direction of the stopper pushing member is not limited. It may be a linear movement or a curved movement (including rotation). The structure of the fitting release means is not limited. For example, an automatic device having a drive unit such as a small electric motor, an electric cylinder, a hydraulic cylinder, or an air cylinder may be used. Also, for example, using a lever,
It may be operated manually. Further, as in the case of the third aspect, the stopper member may be moved in conjunction with the holding and holding of the insulator by the holding arm.

According to a third aspect of the present invention, when the insulator is hugged by the gripping arm, the fitting releasing means is operated to the unmating side, and when the insulator is hugged by the gripping arm, the fitting is released. 3. The insulator cleaner according to claim 2, wherein a grip / fit interlocking structure for operating the means toward the fitting side is provided on the main body frame. The form of the gripping / fitting interlocking structure is not limited, such as a link type structure, a cam type structure, a gear type structure, and a composite structure thereof.

[0012]

According to the first to third aspects of the present invention, at the time of cleaning the insulator, the operation rod is first fixed to the main body frame at the insulator attachment / detachment angle position, and then the cleaning operator grips the operation rod. The body frame at the tip of the rod is applied to, for example, an insulator in a live state. Thereby, both gripping arms are rotatably hung on the insulator from the outside. Thereafter, when the operating rod is pushed and pulled in this state, the body brush is brushed on the surface of the insulator by the cleaning brush provided on the body frame while the body frame is rotated in the circumferential direction of the insulator about the shaft attachment portion.

In particular, according to the first aspect of the present invention, when the cleaning operator grips the operating rod, touches the main body frame to the insulator, and holds the two gripping arms on the insulator in a rotatable manner. Even if the insulator is a large insulator that is not designed, even if the insulator is widened in the direction in which the arm supports are separated from each other against the force of the first spring for rotating the arm, the normal size is achieved. As in the case of the insulator described above, these gripping arms can be rotatably hung on a large insulator.

According to the second aspect of the present invention, when the stopper pushing-out member is moved in the fitting releasing direction by the fitting releasing means during the cleaning operation, the force of the second spring is overcome. The stopper member is pushed in the fitting releasing direction, and the fitted state of both fitting portions is released. Thereby, the operation rod becomes rotatable about the shaft with respect to the main body frame.
As a result, the cleaning operator holds both the gripping arms on the insulator in a rotatable manner, and then pushes and pulls the operation rod, thereby rotating the main body frame in the circumferential direction of the insulator, thereby cleaning the surface of the insulator. Can be cleaned. After the insulator cleaning, when the operation rod is at the insulator attachment / detachment angle position with respect to the main body frame, when the stopper pushing-out member is pulled back by the fitting releasing means,
The stopper member is pushed in the direction of the shaft body by the force of the second spring, and the fitting portions of the shaft body and the stopper member are fitted to fix the shaft body. As a result, the rotation of the operation rod connected to the shaft is restricted. Therefore, the cleaning operator can then detach the insulator cleaner from the insulator by simply pulling the operation rod as it is, while holding the operation rod at an angular position where the insulator cleaner can be easily handled.

On the other hand, when the operating rod is at a position other than the insulator attachment / detachment angle position with respect to the main body frame, even if the stopper pushing-out member is pulled back by the fitting releasing means, the two fitting portions are not in the fitted state. The stopper member is pushed in the direction of the shaft body by the force of the second spring, but the shaft body remains free of rotation while the fitting portion on the stopper member side is pressed against the outer peripheral portion thereof. I do. Therefore, for example, when the main body frame is removed from the insulator in this rotation free state, the cleaning operator slightly shakes the grasped operation rod, and the main body frame is centered around the shaft attachment portion at the tip of the operation rod in the hollow. As a result, during this rotation, when the operating rod reaches the insulator attaching / detaching angle position, the stopper member is pushed in the axial direction by the force of the second spring, and both fitting portions are moved. The operation rod is fitted and the insulator rod is fixed to the main body frame at this insulator attachment / detachment angle position. Thereby, the main body frame can be extracted from the insulator at an angle position other than the insulator attachment / detachment angle position, and after the extraction, the operation rod can be fixed to the insulator attachment / detachment angle position of the main body frame by such a simple operation.

According to the third aspect of the present invention, when the gripping arm is hugged by the insulator, the fitting releasing means operates to the fitting releasing side via the gripping / fitting interlocking structure. On the other hand, when the holding state of the insulator by the gripping arm is released, the fitting releasing means operates to the fitting side via the gripping / fitting interlocking structure. Thus, even if there is no drive unit,
The disengagement means can be automatically activated.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an insulator cleaner according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an insulator cleaner according to one embodiment of the present invention. FIG. 2 is a side view of the insulator cleaner according to one embodiment of the present invention. FIG. 3 is an enlarged perspective view showing a shaft mounting structure of an operation member to a main body frame of the insulator cleaner according to one embodiment of the present invention. 1 and 2
In the drawings, reference numeral 10 denotes an insulator cleaning device according to one embodiment of the present invention. The insulator cleaning device 10 includes a pair of gripping arms 12 for rotatably gripping the insulator 11 from both sides and an insulator 11.
A water supply means 13 for supplying cleaning water to the surface of the body, a cleaning brush 14 for removing dirt on the surface of the insulator 11, and a main body frame which is a stainless steel-made U-shaped frame body provided with these. 15 and an insulative operation rod 17 rotatably connected to the main body frame 15 via a shaft attachment 16. Hereinafter, each component will be described in detail.

The two gripping arms 12 arranged opposite to each other are arms curved in an arc shape.
A pair of arm posts 18 erected at both ends of 5a are rotatably connected to tip ends of a pair of arm posts 18 via a pair of original pins 18f. The front pin 18f is inserted into an elongated hole 18b formed near the base of the arm support 18 so as not to hinder the rotation of the arm support 18 about the base pin 18f. Has been inserted. Therefore, both arm columns 18 rotate slightly in a direction away from each other by the length of the elongated hole 18b. In addition, a pair of small pieces 18c each having an insertion hole protrude to the outside at the base of the arm support 18. A guide rod 18d is suspended between these small pieces 18c in a state of being loosely inserted into each of the insertion holes. Both ends of the guide rod 18d protrude outward through the insertion holes of the small pieces 18c, and a first spring 18e having a distal end fixed with a nut is inserted into each protrusion. That is, the both arm supports 18 are provided with these first springs 18.
Due to the spring force e, the insulator 11 is maintained at an interval for gripping the insulator 11 of a normal size.

The end of each gripping arm 12 on the side opposite to the body frame 15 side is always urged inward by the spring force of a spring mounted on the rotating shaft of the shaft mounting structure 19. An arc-shaped short arm 12a having the same curvature is connected to be rotatable in the direction of the arrow in FIG. At both ends of the holding arm 12 including these short arms 12a, a guide roller 20 which is in contact with the surface of the insulator 11 is rotatably supported. In the vicinity of the short arm 12a side end of each gripping arm 12, a protruding piece 12b
Are formed. A long first frame is provided between the side frames 15b and 15c of the main body frame 15 bent in a U-shape.
Is pivotally mounted. Elongated thin rods 22 for rotating the gripping arm 12 are connected to both ends of the first rotating rod 21 via crank portions 22a, respectively. The distal end of each thin rod 22 is pivotally attached to the protruding piece 12 b of the gripping arm 12. Therefore, by rotating the first rotating rod 21 in a predetermined direction, the thin rod 22 is pushed and pulled through the crank portion 22a, and thereby the two gripping arms 12 opposed to each other are arranged.
Rotate around the pin 18a in the direction of the arrow in FIG.

The water supply means 13 includes an arm support 18
Has two water tanks 24 connected via a pair of connecting pieces 23. The water tank 24 has a pressurized water tank placed on the ground, for example, as in "Automatic water injection device for live-line insulator cleaner" in Japanese Patent Publication No. 40-18538, and the water in the pressurized water tank is elongated. One that automatically injects water into the water tank via a water supply capillary, and
As in “water tank for insulator cleaning device” in JP-A-6, a device that injects water with an appropriate water pressure by pressing a valve body with the back pressure of a spring can be adopted. The drain of each water tank 24 is connected to the base of a rubber tube 25, and the tip of each rubber tube 25 is connected to the middle of the body frame 15a.
Are connected to both ends of a metal collecting pipe 26 fixed in alignment with the axial direction in the length direction. The bases of the transparent resin tubes 27 are connected near both ends of the collecting pipe 26, respectively. Both side frames 15b, 15 of the body frame 15
A long second rotating rod 32 is horizontally suspended between the distal end portions of “c”. At both ends of the second rotating rod 32,
The base of the thin metal plate 28 is fixed. A pair of protrusions extend on both sides of the distal end of each metal plate 28, and the water injection nozzle 29 is fixed to the main body frame 15a in a slightly inclined state by the two protrusions. The tip of the resin tube 27 is connected to the base of the water injection nozzle 29.

The metal plates 28 are spaced apart from each other by a predetermined distance and are orthogonal to the body frame 15a.
This set of orthogonal brushes (first brushes) 14B is attached via a piano wire 30 having spring force. Also,
Of the pair of connecting pieces 23 provided for each of the water tanks 24, the connecting piece 23 on the main body frame 15a side is connected to the main body frame 15a via a thin support rod 31 provided by twisting a wire. Parallel brushes (another first
Brush 14A) is provided. These brushes 1
The cleaning brush 14 is constituted by 4A and 14B. Side frame 15b of first and second rotating rods 21 and 32
Are protruded to the outside, and the bases of the protruding pieces 33 and 34 are fixed to the protruding portions. Projection 33,
A link 35 is connected between the distal end portions 34 via pins 33a and 34a. On the other hand, the first rotating rod 21
The end on the side of the side frame 15c protrudes outside, and the base of a protruding piece 36 having the same shape as the protruding piece 33 is fixed to this protruding portion. A pin 36a is provided upright at the tip of the protruding piece 36, and a pin 37, which is a pair with the pin 36a, is provided upright on the outer surface of the base of the side frame 15c. Between the pins 36a and 37,
A base portion of a strong curved spring 38 for attaching the orthogonal brush 14B to the parallel brush 14A side or for erecting the original state is attached.

As a result, as shown from the solid line position to the two-dot chain line position in FIG. The pair of guide rollers 20 are pushed. As a result, the two gripping arms 12 rotate about the pin 18a to embrace the insulator 11. In conjunction with this, the thin rod 22 connected to the protruding piece 12b of each gripping arm 12 is pushed into the body frame 15 side, and as a result, the first rotary rod 21 rotates via the crank portion 22a. I do.
As a result, the link 35 is pulled toward the main body frame 15 a from the solid line position to the two-dot chain line position in FIG. 2, and the second pivot rod 32 pivots via the protrusion 34. Therefore, each set of three orthogonal brushes 14B falls toward the parallel brush 14A via the two metal plates 28. As a result, the brushes 14A and 14B are pressed against the surface of the insulator 11 held between the holding arms 12.

On both sides near the intermediate portion of the main body frame 15a, the clamp in the rubber tube 25 is released in synchronization with the gripping of the insulator 11 by the gripping arm 12, so that the water in the double water tank 24 is filled with both water injection nozzles. From 29, a rubber tube clamp portion 39 for injecting water into the surface of the insulator 11 is provided. As shown in FIG. 3, the rubber tube clamp portion 39 has a pressing piece 40 fixed to the main body frame 15 a and having a bent end portion applied to a portion of the rubber tube 25 on the operation rod 17 side. . Further, the first rotating rod 21 has a distal end portion which is
A clamp piece 41 that curves to the side and clamps or unclamps the rubber tube 25 with the pressing piece 40 with the rotation of the rod 21 is fixed. Further, a rubber tube 25 is provided on one side of the tip of the pressing piece 40.
The holding piece 40a having a small width for constantly holding the holding member is integrally formed. Next, the shaft attachment portion 16 for connecting the insulating operation rod 17 to the main body frame 15 will be described in detail with reference to FIG.

As shown in FIG. 3, the shaft attachment portion 16 has a base plate 42 for holding the intermediate portion of the main body frame 15a between tapered tapered base portions which are bifurcated in the thickness direction. ing.
A shaft 43 is rotatably mounted on a thick end of the base plate 42. A pair of front and back flanges 44 and 45 are also provided at both ends of the shaft 43 so as to prevent the shaft 43 from coming off. At the outer peripheral portion of the front flange 44 and at the insulator attachment / detachment angle position, a deep fitting concave portion 44a, which is an example of one fitting portion, is formed. Here, the insulator attachment / detachment angular position is a position where the main body frame 15 and the operation rod 17 are orthogonal to each other in a T-shape at the time of fitting with the fitting convex portion 51a described later. One end of a revolving piece 47 is pivotally attached to the back side flange 45 via a forked bracket 46, and a mounting piece 49 is screwed to the revolving piece 47 via a mounting screw 48. ing. The base of the operation rod 17 is screwed to the attachment piece 49. A rubber grip tube (not shown) is externally fitted to the distal end of the operation rod 17.

A thick guide plate 50 is fixed on the surface of a substantially intermediate portion of the base plate 42. The guide plate 50 is formed with a through-hole 50 a having a rectangular cross section extending in the length direction of the base plate 42. A stopper member 51 for fixing the rotatable operation rod 17 to the insulator attaching / detaching angle position is loosely inserted into the through hole 50a. The stopper member 51 is provided with a fitting convex portion (the other fitting portion) 51a whose tapered one end can be fitted into the fitting concave portion 44a. A thick protrusion 51b is provided on the other end of the stopper member 51. The protrusion 51b has a spring hole 51c.
Are perforated. Further, a pair of guide pins 42a of the stopper member 51 is provided on both sides near the distal end of the base plate 42. In the middle part of the main body frame 15a, a guide metal fitting 52 having a groove for preventing lateral deflection of the first rotating rod 21 and having a forked distal end is fixed. Guide fitting 5
A pair of short rods 52 are provided at both ends on one side of the base of the second part.
a is protrudingly provided. Both ends of a holding piece 53 bent into a U-shape are externally inserted into each rod 52a. The holding piece 53 prevents the first rotating rod 21 from coming off the groove of the guide fitting 52.

The first rotating rod 21 has a thick protruding piece 5 near a portion pressed by the pressing piece 53.
4 is fixed. A pin 55, which is an example of a stopper pushing-out member that directly pushes the projecting piece 51b of the stopper member 51 from outside, is provided upright at the tip of the projecting piece 54. A pin-shaped spring stopper 56 is provided upright at an intermediate portion of the main body frame 15a, at a portion opposite to the upright side of the guide fitting 52. A second spring 57 that constantly presses the fitting protrusion 51 a of the stopper member 51 toward the shaft body 43 is externally inserted into the spring stopper 56. One end of the second spring 57 is inserted into a spring hole 51c of the protruding piece 51b.

When the first rotating rod 21 rotates in the direction indicated by the solid line in conjunction with the gripping of the insulator 11 by the gripping arm 12, the projection 54 rotates in the same direction, and the projection 55b is rotated by the pin 55. Press outward. Thereby, along the through hole 50a of the guide plate 50 and the gap between the guide pins 42a,
The stopper member 51 moves in the direction of the solid arrow. On this occasion,
The second spring 57 bends from the solid line position to the two-dot chain line position against the spring force. Thereafter, when the first pivot rod 21 pivots in the two-dot chain line direction in conjunction with the release of the insulator 11 by the grip arm 12, the stopper member 51 is moved by the force of the second spring 57 toward the shaft 43. Pushed into. However, what is actually pushed in is the two fitting portions 44a, 51
a is fitted only when the operating arm 17 is at the insulator attachment / detachment angle position, and at other times, the fitting projection 51 a is merely pressed against the outer peripheral surface of the flange 44 by the force of the spring 57. Becomes In FIG. 3, reference numeral 58 denotes a retaining pin that stands on the main body frame 15a, and the other end of the second spring 57 is retained. Reference numeral 59 denotes a fixture for the collecting pipe 26.
Among the above components, the first rotating rod 21, the projecting piece 54, and the pin 55 are the fitting releasing means. Further, in FIG. 1, the thin rod 22 and the crank portion 22a are gripping / fitting interlocking structures.

Next, the insulator cleaner 10 according to this embodiment is described.
The method for cleaning the insulator 11 of the high-voltage wire will be described with reference to FIG.
As shown in FIGS. 1 to 3, the interval between the gripping arms 12 is widened in advance as shown by the solid line in FIG. In conjunction with this, the fitting projection 51a of the stopper member 51 is
It is assumed that the operating arm 17 is fitted to the fitting concave portion 44a of the third flange 44, and the operating arm 17 is at the insulator attaching / detaching angle position of the main body frame 15. Furthermore, each orthogonal brush 14B is a parallel brush 1
4A, by a pair of rubber tube clamps 39,
It is assumed that the rubber pipes 25 connected to the left and right water tanks 24 are clamped, and the water injection from the water injection nozzle 29 is not performed.

At the time of cleaning the insulator, a cleaning worker climbs on the pillar of the high-voltage electric wire, grips the operating rod 17 and
The space between the two is pressed against the insulator 11. As a result, as shown in the two-dot chain line insulator 11 in FIG.
Hug. Accordingly, the first rotating rod 21 rotates in the direction of the solid line arrow in FIG. 3, and the protrusion 54 rotates, and the pin 55 pushes the protrusion 51 b on the stopper member 51 side in the direction of the solid line. As a result, the fitting projection 51a is pulled out of the fitting recess 44a, and the fitting state of both fitting portions is released. Thus, the operation rod 17 is in a free rotation state. Moreover, at the same time, the rubber piece 25 is opened because the clamp piece 41 is separated from the pressing piece 40, and the water in the water tank 24
6, flows through the resin tube 27 and the water injection nozzle 29 and is supplied to the surface of the insulator 11. Also, since the orthogonal brush 14B falls down toward the parallel brush 14A, the insulator 11
4A and 14B.

Thereafter, when the operation rod 17 is pushed and pulled while continuing the water injection,
The main body frame 15 rotates in the circumferential direction of the insulator 11. Thus, the surface of the insulator 11 is brushed by the cleaning brush 14 provided on the main body frame 15 while receiving the supply of water, and the dirt attached to the surface is removed. In addition, even if the insulator 11 is a non-design insulator whose diameter is slightly larger than the length between the gripping arms 12, the arm columns 18 separate from each other against the force of the first spring 18e for rotating the arm. In this case, the slightly larger insulator can be rotatably gripped as in the case of the normal-sized insulator 11, and brushing is performed while pouring the surface of the insulator similarly. it can.

After the cleaning is completed, the gripping arm 12 is detached from the insulator 11 by forcibly pulling the operation rod 17. That is, the gripping arm 12 pivots outward about the pin 18a, and pivots from the two-dot chain line position to the solid line position in FIG. This widens the gap between the arms 12 to the original state. At this time, when the operation rod 17 is at the insulator attachment / detachment angle position with respect to the main body frame 15, FIG.
When the first rotating rod 21 is rotated in the two-dot chain line direction and the pin 55 is pulled back, the stopper member 51 is pushed in the direction of the shaft 43 by the force of the second spring 57 as shown in FIG. Both fitting portions 51a of the shaft 43 and the stopper member 51,
The rotation of the shaft 43 is fixed by the fitting of the shaft 44a. As a result, the rotation of the operating rod 17 connected to the shaft 43 is fixed, and the operating rod 17 is orthogonal to the main body frame 15 in a T-shape.

On the other hand, after the cleaning, the main body frame 15
When the operating rod 17 is pulled out of the insulator 11 at a position other than the insulator attaching / detaching angle position, that is, the fitting portions 44a and 51a may not be at the opposing position. Even in such a case, the insulator cleaner 10 of the embodiment can pull out the main body frame 15 from the insulator 11 similarly by strongly pulling the operation rod 17. However, after being pulled out, the fitting portions 44a and 51a are not in the fitted state, and the tip of the fitting portion 51a on the stopper member 51 side is pressed against the outer peripheral surface of the flange 44 of the shaft 43. Stop. Therefore, the main body frame 15 is free to rotate at the tip of the operation rod 17. As a result, after that, when the cleaning operator slightly moves the operation rod 17, the main body frame 15 rotates around the shaft attachment portion 16 in the hollow, and when the operation rod 17 reaches the insulator attaching / detaching angle position, The stopper member 51 is pushed in the direction of the shaft 43 by the force of the second spring 57, and the two fitting portions 44a,
1a is fitted, and the operation rod 17 is fixed to the main body frame 15 at this insulator attachment / detachment angle position.

As described above, in the insulator cleaner 10, the main body frame 15 can be removed from the insulator 11 at an angle position other than the insulator attachment / detachment angle position.
With a simple operation, the operation rod 17 can be fixed to the insulator attachment / detachment angle position of the main body frame 15 so that the insulator cleaner 10 can be easily handled. In addition, the grip arm 12
When the insulator 11 is gripped by the first rotating rod 21 via the thin rod 22 and the crank portion 22a, the protrusion 54
The pin 55 fixed via the pivots toward the disengagement side.
On the other hand, when the gripping state of the insulator 11 by the gripping arm 12 is released, the pin 55 rotates toward the fitting side via the thin rod 22 and the crank portion 22a. Thereby, the stopper member 51 can be automatically moved in the fitting direction or the fitting releasing direction without the drive unit.

[0034]

According to the first aspect of the present invention, each gripping arm is moved through the arm support pivoting in the separating direction.
Because it is attached to the main body frame, it is possible to clean even insulators that are slightly larger than the insulators that were targeted for cleaning during design.

According to the second aspect of the present invention, the structure of the shaft attaching portion for connecting the operating rod to the main body frame includes a shaft body having a fitting portion and a corresponding fitting portion. Since the stopper member, the second spring for fitting interposed between the body frame and the stopper member, and the fitting releasing means are employed, the body frame can be separated from the insulator at an angular position other than the insulator attaching / detaching angular position. The operating rod can be fixed to the insulator attachment / detachment angle position of the main body frame by a simple operation after the extraction.

Further, according to the third aspect of the present invention,
The gripping / fitting interlocking structure interlocks the gripping of the insulator of the gripping arm and the release of the insulator, and the fitting and releasing of the stopper member and the shaft body by the fitting releasing means. However, the disengagement means can be automatically operated.

[Brief description of the drawings]

FIG. 1 is a plan view of an insulator cleaner according to one embodiment of the present invention.

FIG. 2 is a side view of the insulator cleaner according to one embodiment of the present invention.

FIG. 3 is an enlarged perspective view showing a shaft mounting structure of an operation member to a main body frame of the insulator cleaner according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 insulator cleaner, 11 insulator, 12 gripping arm, 14 cleaning brush, 15 main body frame, 16 shaft attachment part, 17 operation rod, 18e first spring, 21 first rotating rod (fitting releasing means), 22 Thin rod (gripping / fitting interlocking structure), 22a crank part (gripping / fitting interlocking structure), 28 arm column, 43 shaft, 44a fitting recess (one fitting part), 51 stopper member, 51a fitting convex part (the other fitting part), 55 pin (stopper pushing member), 54 projection (fit releasing means), 57 second spring.

Claims (3)

[Claims] 1. An insulative operation rod which is pivotally attached to a main frame via a pivot portion while a gripping arm, which is disposed opposite to the main frame, is rotatably held by an insulator. By doing so, the insulator cleaning device for cleaning the surface of the insulator with a cleaning brush provided on the main body frame while rotating the main body frame in the circumferential direction of the insulator around the shaft attachment portion, The gripping arm includes an arm support that is rotatably provided on the main body frame in a direction away from each other, and a first spring for rotating the arm that maintains a distance between the arm supports at a predetermined distance. An insulator cleaner comprising: a rotating device that rotates each of the arm columns in a direction away from each other against the force of the first spring, thereby rotating each of the gripping arms in the same direction. 2. An insulative operation rod which is pivotally attached to said main body frame via a pivot portion while said gripping arm, which is disposed opposite to said main frame, is rotatably held by said insulator. By doing so, the insulator cleaning device cleans the surface of the insulator with a cleaning brush provided on the body frame while rotating the body frame in the circumferential direction of the insulator around the shaft attachment portion. The structure of the shaft attachment portion connecting the rod to the main body frame has a shaft body having one fitting portion on the outer peripheral portion and the other fitting portion, and is movably attached to the main body frame, When the two fitting portions are fitted, a stopper member for fixing the rotatable operation rod to the insulator attachment / detachment angle position, and a stopper member interposed between the main body frame and the stopper member,
A second spring for fitting the two fitting portions, which always presses the other fitting portion of the stopper member to the outer peripheral portion of the shaft body; and the stopper member provided on the main body frame. By pressing the stopper member in the disengagement direction against the force of the second spring by moving the stopper member. An insulator cleaning device comprising: a fitting releasing means for releasing the fitting between the fitting portions. 3. When the insulator is held by the gripping arm, the fitting releasing means is operated to the fitting releasing side.
3. The insulator cleaner according to claim 2, wherein a gripping / fitting interlocking structure for operating the fitting releasing means to the fitting side when the holding of the insulator by the gripping arm is released is provided on the main body frame.