JPH0670122U - Pin insulator fixing arm - Google Patents

Abstract

(57) [Summary] [Purpose] A pin insulator fixing arm that can easily and reliably fix the required pin insulator with an indirect live-wire tool or robot tool even under a narrow work space. It provides money. [Structure] Slot-shaped pin insertion holes 3 and 4 are formed opposite to each other along the lengthwise direction of the pipe arm main body 2 and the upper and lower pin insertion holes 3 and 4 have a required diameter. The nut insertion holes 5 and 6 are formed to communicate with each other, and the nut 12 is inserted in the upper and lower nut insertion holes 5 and 6 and the upper and lower pin insertion holes 3 and 4.
Since it is configured to insert and fix the pin insulator 8 in which the pin 12 is temporarily fixed, the required pin insulator 8 can be fixed to the arm 1 while the nut 12 and the like are temporarily fixed. It is possible to perform the fixing work easily and surely and efficiently by using the robot tool 14 or the like even under the pressure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixing arm for a pin insulator that supports an overhead power distribution line.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, as this type of armpiece, there is known one in which a pin insertion hole having a required diameter is formed in a continuous manner on the upper and lower sides of a pipe armmember main body having a required length. In addition, the arm member is configured such that, after the pin of the pin insulator is inserted into the pin insertion hole from above, a nut is screwed into a threaded portion formed at a tip portion of the pin via a washer so as to be fixedly supported.

[0003]

[Problems to be solved by the device]

 By the way, in recent years, cases of using indirect live-wiring tools and robot tools for uninterruptible construction of overhead power distribution lines are increasing, but they pose various problems. That is, since a large number of arms are attached in a state in which they are close to the required places of the electric pole, the work space is necessarily very narrow. For this reason, when directly fixing the pin insulator to the armpiece with an indirect live-wire tool or robot tool, the fixing work is extremely troublesome and time-consuming, and the work efficiency is extremely high. Not only is it bad, but there is also the danger that an indirect live-wire tool, etc. may come into contact with other adjacent arms or wires during work, causing a short-circuit accident. In addition, the conventional arm has a structure in which the pin of the pin insulator is inserted into the pin insertion hole, and then the nut is screwed into the threaded part, so that the nut can be attached by an indirect live wire tool or a robot tool. The work is extremely difficult.

The present invention solves all the problems of the prior art at once, and even under a narrow working space, it is possible to fix the required pin insulator easily and reliably and efficiently by an indirect live-wire tool or a robot tool. It aims to provide a pin insulator fixing arm that can be used.

[0005]

[Means for solving the problem]

 That is, in this invention, the slot-like pin insertion holes 3 and 4 are formed to face each other along the lengthwise direction of the pipe arm-body main body 2, and the upper and lower pin insertion holes 3 and 4 are formed. Nut insertion holes 5 and 6 having a required diameter are formed to communicate with each other, and a pin insulator 8 in which a nut 12 or the like is temporarily fixed is inserted through the upper and lower nut insertion holes 5 and 6 and the upper and lower pin insertion holes 3 and 4. It is configured to be fixed.

[0006]

[Action]

 With the nuts 12 etc. temporarily fixed, the required pin insulator 8 can be inserted into the upper and lower pin insertion holes 3 and 4 and the upper and lower nut insertion holes 5 and 6 from diagonally above, and can be fixed to the arm member 1. .

[0007]

【Example】

 An embodiment of the arm 1 according to the present invention shown in the drawings will be described below. Reference numeral 2 is a metal pipe arm member main body having a circular cross section and having a required length, and 3.4 is a groove having a required length which is vertically formed so as to face each other along the longitudinal direction of the arm member main body 2. Hole-shaped upper and lower pin insertion holes 5 and 6 are upper and lower nut insertion holes having a required diameter, which are formed to communicate with the upper and lower part pin insertion holes 3 and 4 at a substantially middle position. The hole 4 is formed slightly shorter than the upper pin insertion hole 3, and the lower nut insertion hole 6 is located at a position slightly displaced from the upper nut insertion hole 5. Reference numeral 7 is a pair of substantially arcuate retaining pieces formed on both sides of the upper pin insertion hole 3 so that one end of the upper pin insertion hole 3 stands upright. In addition, 8 is a pin insulator, 9 is a pin of a required length which constitutes the pin insulator 8, 10 is a screw portion formed at the tip of the pin 9, and 11 is a flange shape formed at the upper end of the pin 9. , 12 is a nut that can be screwed into the threaded portion 10, 13 is a washer, and 14 is an articulated robot.

Next, the operation of the embodiment configured as described above will be described. First, the washer 13 and the nut 12 are temporarily fixed to the screw portion 10 of the pin insulator 8. After that, the pin insulator 8 is gripped by the articulated robot 14 to operate, and the tip of the pin insulator 8 is attached to the upper nut insertion hole 5 together with the mounting nut 12 while being guided obliquely from above to the upper pin insertion hole 3. Insert (see FIGS. 2 and 3a). When the insertion of the mounting nut 12 and the like is completed, the pin insulator 8 is further inserted in an inclined state along the hole edge of the upper pin insertion hole 3, and the stopper 11 thereof is locked to the retaining piece 7. The tip of the pin 9 is inserted through the lower nut insertion hole 6 together with the mounting nut 12 and the like, and then it is gradually raised along the edge of the lower pin insertion hole 4 (see FIGS. 3b and 3c). Then, while the stopper 11 of the pin insulator 8 is locked to the upper surface of the arm member main body 2 and the retaining piece 7, the nut 12 is screwed and fastened to the screw portion 10 via the washer 13 so as to be fixed. Is.

In addition, in the above-described embodiment, the arm-body main body 2 is formed in a circular cross-section, but it may be formed in a known shape such as a cross-section square. Further, although the upper and lower nut insertion holes 5 and 6 are formed substantially in the middle of the upper and lower pin insertion holes 3 and 4, respectively, the shape of the main body 2 of the wire and the size and shape of the pin insulator 8, etc. It may be formed at a desired position depending on the situation.

[0010]

[Effect of device]

 According to the present invention, the slotted pin insertion holes 3 and 4 are formed opposite to each other along the longitudinal direction of the pipe arm member main body 2 according to the above, and the upper and lower pin insertion holes are inserted. Nut insertion holes 5 and 6 having a required diameter are formed in communication with the holes 3 and 4, respectively, and nuts 12 are temporarily fixed to the upper and lower nut insertion holes 5 and 6 and the upper and lower pin insertion holes 3 and 4, respectively. Since the pin insulator 8 is configured to be inserted and fixed, the required pin insulator 8 is obliquely from above while the nut 12 and the like are temporarily fixed, and the upper and lower pin insertion holes 3 and 4 and the upper and lower nut insertion holes 5 and 5. It can be inserted into 6 and can be fixed to the arm 1 so that even under a narrow working space, it can be easily and safely and reliably and efficiently by the indirect live-wire tool and the robot tool 14. It can be fixed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a fixing work state of a pin insulator 8 by the articulated robot 14.

FIG. 3 is a partially enlarged cross-sectional view showing a fixed state of a pin insulator 8.

[Explanation of symbols]

 1 Bracket 2 Bracket main body 3 Upper pin insertion hole 4 Lower pin insertion hole 5 Upper nut insertion hole 6 Lower nut insertion hole 7 Retaining piece 8 Pin insulator 12 Nut

Claims (2)

[Scope of utility model registration request] 1. A slotted pin insertion hole (3, 4) is formed on the upper and lower sides of a pipe arm (2) along the longitudinal direction so as to face each other, and the upper and lower pin insertion holes (3, 4) are required. The nut insertion holes 5 and 6 having a diameter are formed to communicate with each other, and the nut 1 is inserted into the upper and lower nut insertion holes 5 and 6 and the upper and lower pin insertion holes 3 and 4.
A pin insulator fixing arm configured to insert and fix the pin insulator 8 to which 2 and the like are temporarily fixed. 2. The upper pin insertion hole 3 is formed with a pair of retaining pieces 7 on both sides at one end thereof.
The armor for fixing the pin insulator.