JP4658915B2 - Electric detector phase detector mounting structure - Google Patents

Description

The present invention relates to a voltage detector and phase detector for performing voltage detection and phase detection of a construction switch used for construction of an electric circuit such as a high-voltage distribution line. In more detail, the detector and phase detector used in the construction switch used to replace the switch installed at the height of the utility pole can be easily attached and removed, and a stable mounting state is provided. To do.

When replacing support insulators and electrical equipment for poles on a high-voltage distribution line, the power company supplies power to customers uninterrupted. A bypass line is attached in parallel. In order to attach this bypass line, a construction switch is attached to the utility pole. Specifically, the existing line in the construction section is kept in the power-applied state, and the construction switch is opened to newly form a bypass line in parallel with the construction section. At that time, it is necessary to check the phase sequence of the insulated cables on the power supply side and the customer side connected to the construction switch and the charging status.

For this reason, workers have been performing inspection work by bringing a voltage detection phase detector into contact with a voltage detection terminal provided in the vicinity of the bushing of the construction switch. Further, the inspection results have been visually confirmed by a display unit provided in the voltage detection phase detector.

In conventional inspection work, the operator lowers the voltage detector phase detector placed in the case from the neck so that the display unit is at the top, and holds the inspection terminal connected to the voltage detector phase detector in both hands. In the state, the inspection work has been carried out by contacting the voltage detection terminal provided on the bushing from the lower side of the construction switch. Therefore, the operator has confirmed the upper side in order to bring the inspection terminal into contact with the power detection terminal, and has confirmed the lower side in order to know the inspection result.

In addition, a plurality of mounting guides are provided horizontally on the bottom surface of the construction switch, and a pipe installed at a position corresponding to the top surface of the receiver is inserted through the guide to connect the receiver to the switch. There is a configuration to install. (See Patent Document 1)

According to the invention, when the receiver is installed, the pipe provided on the top surface of the receiver is inserted through the guide provided on the bottom surface of the switch, and then the pipe end is held by the engaging portion provided at the guide tip. As a result, the receiver did not fall off and the mounting operation became easy.
Japanese Utility Model Publication No. 3-19156

However, with the conventional voltage detection phase detector configuration, when checking the inspection result in the inspection work, the operator once turns the line of sight downward and the operator's inspection terminal and the switch side detection terminal There was a possibility that the phase detection work could not be performed correctly due to the separation or insufficient contact.

In the invention described in the Utility Model Publication, the receiver is attached to the bottom surface of the switch so that the operator's line of sight is not greatly changed as described above. By inserting the guide on the bottom of the switch into the pipe provided in the machine, the operator has a problem in terms of workability because the insertion place of the receiver is limited before installation. .

Further, in the receiver mounting configuration, in the detaching operation, an operation for releasing the engaging portion of the guide tip portion while sliding the receiver at one end in the mounting direction is added instead of the method in the reverse direction to the mounting operation. Thus, the operation method is different in the attachment / detachment operation, and the number of parts related to the attachment structure is large, and the cost is not low.

In the present invention, in order to achieve an inexpensive configuration as described above, a display unit for confirming the power application state and phase sequence of the construction switch (1) in which the switch unit is housed in the body case (3). (6e) is a structure for attaching the voltage detector and phase detector (6) to the bottom surface of the main body case (3), and the bottom surface (3a) of the one main body case (3) is connected to the outside. Two protruding portions (5) that protrude and are arranged at a predetermined interval are provided, and the other voltage detecting phase detector (6) is provided with a mounting bracket (6) on the surface facing the display portion (6e). 11), and the protrusion (5) is inserted into the mounting bracket (11), and a notch (11a) provided at a position corresponding to the protrusion (5), and the notch (11a). ) And a guide portion (11c) inclined to the mounting bracket (11). 5) A holding member (12) for holding is disposed in the notch (11a), and the protrusion (5) has a support part (5a) that can be inserted into the notch (11a), An attachment structure of a voltage detection phase detector, wherein a holding portion (5b) having a diameter larger than the width of the notch (11a) is provided at an end of the support portion (5a) .

Due to the mounting structure of the detection phase detector of the above invention, in the mounting operation of the detection phase detector, the guide portion provided on the mounting bracket of the detection phase detector on the protrusion provided on the bottom surface of the construction switch It can be easily installed by sliding it in the mounting direction while abutting.

Further, the voltage detector / phase detector can be prevented from falling off by locking the holding portion provided on the protrusion of the main body case and the notch portion provided on the fitting of the voltage detector / phase detector.

Moreover, as a method of attaching / detaching the voltage detector / phase detector, the operation is very simple because the protrusion on the construction switch side is engaged via a holding member provided on the mounting bracket.

Furthermore, the structure for attaching the voltage detector and phase detector to the construction switch has a small number of parts and is composed of a simple part shape, so that it can be constructed at a low cost.

The best mode for carrying out the invention will be described with reference to the drawings.
1 to 6 show an embodiment of the present invention.

As shown in FIG. 1, the construction switch 1 is made of a metal material, for example, a stainless steel plate or a steel plate. The operation mechanism part for operating a part and a movable electrode part is accommodated, and they are ensuring the airtight state of the main body case 3 by covering the cover body 8.

The power supply side and load side bushings 7 connected to the movable electrode portion and the fixed electrode portion are opposed to each other on both sides of the main body case 3, and the bushing 7 is provided with a cable holder 7a. Further, an operation handle 2 for opening and closing the movable electrode portion in conjunction with the operation mechanism portion is provided on the front side of the main body case 3.

As shown in FIG. 2, a known detection phase detector 6 having a detection phase detection function is detachably attached to the bottom surface 3a of the construction switch 1 by a mounting structure described later. The detection phase detector 6 connects a signal detected by the bushing 7 or the charging part of the movable electrode part or the fixed electrode part to a connector 9 fixed to the main body case 3 through a cord, and detects it. By connecting the cord 10 provided in the electric phase detector 6 and performing a test, the display unit 6e, a buzzer, etc. inform the operator of the result of the electric current detection and phase detection based on the signal. ing.

The detection phase detector 6 has a substantially cubic shape on the surface of a case 6a made of a resin material or a metal material. A “test” button 6c for starting a detection phase test is turned on, and the detection phase detector 6 is turned on. , An “ON” button 6b for turning OFF, a “OFF” button 6d, a display unit 6e for detecting and detecting phases using a light emitting diode for notifying the operator of a test result, and a speaker unit 6f using a buzzer. I have. In addition, an electronic substrate for performing a voltage detection phase detection configured by a known technique is accommodated in the case 6a.

As shown in FIG. 4, a terminal socket 10a is provided on the side surface so that it can be easily attached to and detached from the tip for connecting to the connector 9 electrically connected from the voltage detector of the construction switch 1. The cord 10 is provided. In addition, on the back side opposite to the display unit 6e side of the voltage detection phase detector 6, the battery storage unit 6f for storing the battery and the voltage detection phase detector 6 are attached to the bottom surface 3a of the construction switch. The mounting bracket 11 is arranged at a position corresponding to a support bracket 5 (described later) with a notch 11a and an elastic member in a central portion made of a metal material or a resin material plate.

Next, the mounting structure will be described.
On the bottom surface 3a of the construction switch 1, a substantially cylindrical support metal fitting 5 is erected vertically to the outside of the main body case 3 at a predetermined interval, and the voltage detector 6 is shown in FIG. As shown in Fig. 5, the support bracket 5 and the cutout portion 11a can be installed by being slid rightward, and can be removed by sliding in the opposite direction to the mounting direction.

The support fitting 5 is formed of a columnar support portion 5a and a disc-shaped holding portion 5b having a larger diameter than the support portion 5a which is an end portion of the support portion 5a. The holding part 5b is provided as a stopper for preventing the sliding part from sliding down when the voltage detection phase detector 6 is attached.

The mounting bracket 11 provided on the voltage detector 6 is formed of a substantially U-shaped metal or resin plate, and has a substantially the same width as the support portion 5a of the support bracket 5 at the center of one side. The guide part 11c is comprised by the edge which comprises the notch part 11a and forms the obtuse angle connected continuously with the notch part 11a. When the voltage detection phase detector 6 is attached by the guide portion 11c, the support fitting 5 is moved in the mounting direction (right direction in FIG. 3) while being in contact with the guide portion 11c. It is provided to guide to the notch 11a.

The guide portion 11c of the present embodiment is provided by using the end side of the mounting bracket 11. However, the guide portion 11c is not limited to this and may be any device that can achieve the object of the present invention. You may provide the guide for extending | stretching and guiding to the notch part 11a of the attachment metal fitting 11 more.

The mounting bracket 11 is provided at a position where the notch portion 11a corresponds to the support bracket 5 and is fixed to a mounting support member 6g erected on the bottom surface of the voltage detector phase detector 6. The distance between the bottom surface and the mounting bracket 11 is fixed. Is secured by securing a gap necessary for mounting to the support bracket 5.

Also, a metal wire is formed around the notch portion 11a of the mounting bracket 11 with a linear wire and is extended from the support portion 5a of the support bracket 5 with a smaller diameter than the end portion of the U-shaped portion 12a. A holding member 12 having an arm portion 12b whose tip is bent at a right angle is provided. The holding member 12 is inserted into a support hole 11b provided in the mounting bracket 11 so that the notch portion 11a and the U-shaped portion 12a overlap each other. It is supported by.

As shown in FIG. 6, the holding member 12 is configured with an arm portion 12 b so as to be narrower than the distance of the support hole 11 b in a state before being attached to the mounting bracket 11. The arm portion 12b is in contact with the inside of the support hole 11b by the elastic force of the holding member 12. On the other hand, since the U-shaped portion 12a is pushed and engaged when fitting with the support metal 5, the arm portion 12b is also moved to the outside in order to be similarly spread. Therefore, the support hole 11b is provided with a hole that is large enough to allow the arm 12b to move as described above.

The holding member 12 is not limited to the one made of the metallic wire, but may be any member that achieves the object of the present invention. For example, a U-shaped member made of an elastic rubber material is used as the notch 11a of the mounting bracket 11. It may be fixed so as to overlap.

Further, since the support fitting 5 has the holding portion 5b, the holding force of the holding member 12 does not need to hold the weight of the voltage detection phase detector 6, and moves in the removal direction (left direction) in FIG. A weak force that regulates the level is sufficient.

Next, how to attach and detach the voltage detector / phase detector 6 to / from the construction switch 1 will be described. First, as is well known, the construction switch 1 is attached to the height of the utility pole using a mounting bracket. Thereafter, the worker climbs the power pole with the voltage detection phase detector 6.

Therefore, hold the display 6e of the voltage detector / phase detector 6 so that the display 6e faces downward, and work while making the support metal 5 provided on the bottom surface 3a of the construction switch 1 and the guide 11c of the mounting metal 11 contact each other. Slide in the mounting direction (right direction in the figure) in parallel with the bottom surface 3a of the switch 1 for use. Then, it naturally guides to the notch 11a provided in the mounting bracket 11, and thereafter, the two holding members 12 and the supporting bracket 5 are simultaneously engaged. When the fitting is finished, the voltage detection phase detector 6 is firmly held on the bottom surface 3a of the construction switch 1 even when the operator releases his / her hand.

After the voltage detector phase detector 6 is installed on the bottom surface 3a of the construction switch 1, the terminal socket 10a provided on the side surface of the voltage detector phase detector 6 is held in the hand, and is connected to the connector of the construction switch 1 By connecting to 9, the installation for testing the voltage detector phase detector 6 is completed.

Further, the method of removing the voltage detector / phase detector 6 is performed in the reverse order of the above. That is, the cord 10 connected to the construction switch 1 is removed, and then the voltage detector 6 is held in the hand, and the device is slid parallel to the bottom surface 3a in the removing direction (left direction in FIG. 3). . By sliding, the holding member 12 and the support fitting 5 are disengaged, and the removal of the voltage detection phase detector 6 is completed.

As described above, the detecting phase detector 6 can be easily guided to the notch portion 11a by the guide portion 11c provided on the mounting bracket 11, and the elastic holding member provided on the notch portion 11a. 12 can be easily attached and detached.

Furthermore, the holding force of the holding member 12 is not particularly large due to the holding portion 5 b provided in the support metal 5, and the metaphase detector 6 does not slide down with respect to the support metal 5.

The side view of the state which attached the voltage detection phase detector to the switch with the mounting structure of this invention. The bottom view of the state which attached the voltage detection phase detector to the switch with the mounting structure of this invention. Fig. 3 is a state diagram in which the voltage detector and phase detector are slid in the operation direction and attached. The figure showing the positional relationship of the support metal fitting and the attachment metal fitting in the attachment structure of this invention. The state figure which the support metal fitting and the holding member engaged. Fig. 2 is a main part diagram regarding the mounting structure. a) Front view of mounting bracket, b) Front view and side view of holding member, c) Detailed view of support bracket

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Construction switch 3 Main body case 5 Support metal fitting 5a Support part 5b Holding part 6 Electric detection phase detector 6e Display part 7 Bushing 7a Cable holder 10 Cord 11 Mounting bracket 12 Holding member

Claims (1)

The voltage detector and phase detector (6) provided with a display unit (6e) for confirming the applied state and phase sequence of the construction switch (1) in which the switch part is housed in the main body case (3). (3) A structure for mounting to the bottom surface of the main body case (3) , the two bottom surface portions ( 3a) projecting to the outside and arranged at predetermined intervals (5) the provided, and the other wherein the electroscopic test phase shifter (6) of said mounting bracket (11) provided on the opposing face to the display unit (6e), the projection is in Thus also the mounting bracket (11) further, the mounting together with the part (5) is inserted the notch portion provided in a position corresponding to the protrusion (5) and (11a), provided a guide portion inclined to the notch to (11a) (11c) the cut portion of the holding member (12) for holding said projections (5) on the bracket (11) (11 Placed), further wherein the projections (5) can be inserted into the notch (11a) in the support portion and (5a), the width of the notch in the end of the support portion (5a) (11a) A structure for mounting a voltage detector / phase detector, comprising a holding portion (5b) having a larger diameter.

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