KR102229366B1 - Protection apparatus for power distribution lines in mountainous area - Google Patents

Abstract

The present invention relates to a protection device of a distribution line in a mountainous area. By having a lifting table, lift drive means, single-stage extension mechanism, two-stage extension mechanism, washing water injection pipe, and washing water injection nozzle to ensure the removal of foreign substances deposited in all directions including the inner space as well as the outer space of a suspension insulator, the distribution line can be safely protected. The protection device of a distribution line can be installed easily without any component, which has to be buried as deep as a height of a pylon. The protection device is suitable for protecting the distribution line in the mountainous area by washing the suspension insulator installed on the pylon in the mountainous area. The movement of the washing water injection nozzle between a washing position and a standby position can be effectively made.

Description

Protection apparatus for power distribution lines in mountainous area

The present invention relates to a protection device for a distribution line in a mountainous area, among the technologies in the distribution field, and more specifically, a distribution line by making it possible to reliably remove foreign matter deposited in all directions including the outside as well as the inside of the suspension insulator. It is suitable for protecting distribution lines in mountain areas by washing the suspension insulators installed on the steel towers in mountain areas, and making it easy to install without components that need to be buried as deep as the height of the steel tower. The present invention relates to a device for protecting a distribution line in a mountainous area so that a nozzle can be effectively moved between a washing position and a standby position.

In general, distribution lines are divided into distribution lines using electric poles and distribution lines using steel towers.

In Korea, about 70% of the land is mountainous, and since the pylons for distribution lines are mainly installed in the mountainous areas, it is difficult to install and access the pylons for distribution lines.

The pylon is composed of a pylon body and a pylon arm installed at the upper end of the pylon body, and the distribution cable is supported by an insulator to the pylon arm in an insulated state.

Since the distribution line using a chirping tower is exposed to dust and rain as it is, as time passes, foreign substances such as dust are deposited on the insulator, resulting in deterioration of insulation, and in severe cases, various accidents due to insulation breakdown.

Therefore, by periodically cleaning foreign substances adhered to the insulator to preserve insulation, various accidents due to insulation breakdown are prevented in advance.

Washing of foreign matter adhered to the insulator is accomplished by spraying high-pressure washing water using a washing water spray pipe window equipped with a washing water spray hole at the tip of the insulator.The height of the steel tower is so high that the worker uses the washing water spray pipe window from the ground. Therefore, it is almost impossible to spray high-pressure washing water on the suspension insulator.

Also, in Korea, since most distribution lines using steel towers are installed in the maxillary area, washing equipment such as washing water tanks, pumps, hoses, and washing water spray pipe windows must be transported by manpower from the bottom of the mountain in order to clean the ground. Almost impossible.

Therefore, the cleaning of the insulator of a distribution line using a conventional steel tower is carried out by a worker boarding a helicopter.

As a device using a helicopter, there is Korean Patent Registration No. 10-0475673 (registered on Feb. 28, 205), "Insulator cleaning sprayer using a helicopter and a method for cleaning insulators using the same" (hereinafter referred to as'prior art 1').

However, when washing the insulator by spraying the washing water in the helicopter, there is a problem that sufficient washing is not performed because the washing water is sprayed only on the outer surface of the insulator and not inside the insulator.

In addition, since the insulator is cleaned in a live condition, keeping the helicopter in close proximity to the high-voltage distribution line may not only cause the propeller of the helicopter to collide with the pylon or distribution line, but also increase the distance and insulation distance to avoid collision. The work must be carried out while maintaining it, and if the helicopter shakes according to weather conditions, the washing water is not accurately sprayed on the insulator, and the insulator is not cleaned smoothly.

In addition, even if the helicopter maintains a collision avoidance distance and insulation distance, in the case of strong wind, the helicopter collides with a pylon or transmission line, causing a crash of the helicopter or not maintaining sufficient insulation distance. As a result, there is a risk of electric shock and serious accidents.

The pilot and the worker are on board the helicopter, but communication between the pilot and the worker is not smooth, so the worker takes an unreasonable posture, and there is a risk of a fall accident.

As a prior art, Republic of Korea Patent Registration No. 10-0433752 (registered on May 20, 2004) "Insulator vacuum cleaner" (hereinafter referred to as "prior art 2") is a power supply for supplying power; Brushing means driven by a power source; Water cleaning means for pumping water with a power source and spraying water to a predetermined position; And a power source, a brushing means, and a control means for controlling the cleaning by the brushing means and water spraying of the water cleaning means by selectively driving, but the worker directly boards the tower on the steel tower. Insulator cleaning is possible only in a power outage state, and it is not suitable for insulator cleaning in a live state.

In addition, as a prior art, the Republic of Korea Patent Registration No. 10-1696921 (registered on January 10, 2017) "Extra-high pressure transmission and distribution overhead wire support steel tower" (hereinafter referred to as'priority technology 3') includes a washing water tank installed on the ground. Started technology to prevent electric shock and fall accidents by providing a washing water spraying means including a washing water supplying means and a washing water spraying pipe installed at the upper end of the steel tower so that the operator can wash by remote control. However, since the washing water spray pipe equipped with the washing water spray nozzle is installed in a built-in type at the upper end of the steel tower and is exposed to wind and rain, there is a problem that the washing water spray nozzle of the washing water spray pipe is clogged and becomes inoperable. There is a problem in that another electric shock accident and a fall accident occur because it has to go up to the upper end of the steel tower and pierce the clogged washing water spray nozzle.

As a prior art for solving these problems, Korean Patent Registration No. 10-1833053 (registered on February 21, 2018) "Pylon for supporting overhead lines for extra-high voltage transmission" (hereinafter referred to as'priority technology 4') is newly installed. It is configured to lift, horizontally rotate, and vertically rotate the washing water spray device by the lifting device, horizontal rotation device, and vertical rotation device, and the operator can clean the suspension insulator by remote control. The washing water supply hose is not exposed to wind and rain, so that the washing water injection nozzle is not blocked or the washing water supply hose is kept in an operational state at all times, and if maintenance or repair of the washing water injection pipe is required, an electric shock or fall from the ground. It discloses a technology that allows you to safely perform work without accidents.

However, in the prior art 4, since the washing water sprayed from the washing water spraying device is sprayed only on the inner surface of the suspension insulator and not on the outer surface, cleaning of the suspension insulator is not sufficiently performed, and cleaning work on the outside of the suspension insulator is not performed. There is a problem that must be implemented additionally.

In addition, the lifting device on which the washing water spraying means is mounted is driven up and down by the lifting screw and the lifting drive nut, and the screw casing to protect the lifting screw must be buried as deep as the height of a steel tower up to several tens of meters, making installation very difficult. have.

In addition, Korean Patent Registration No. 10-0625682 (registered on September 12, 2006) "Insulator cleaning device and method" (hereinafter referred to as'prior art 5') is a pair of semi-circular spray heads equipped with a plurality of nozzles on the inner circumferential surface. It discloses a technology that allows both the inner and outer surfaces of the suspension insulator to be cleaned.

However, the prior art 5 has a problem in that an operator boards an aerial vehicle to perform the cleaning operation, and is not suitable for protecting a distribution line in a mountain area by washing a suspension insulator installed on a steel tower in a mountain area.

Korean Patent Registration No. 10-0475673 (registered on Feb. 28, 205) "Insulator cleaning sprayer using a helicopter and a method for cleaning insulators using the same" Korean Patent Registration No. 10-0433752 (registered on May 20, 2004) "Insulator vacuum cleaner" Republic of Korea Patent Registration No. 10-1696921 (registered on Jan. 10, 2017) "Supporting steel tower for special high voltage transmission and distribution overhead lines" Republic of Korea Patent Registration No. 10-1833053 (registered on February 21, 2018) "Pylon supporting overhead lines for special high voltage transmission" Republic of Korea Patent Registration No. 10-0625682 (registered on September 12, 2006) "Insulator cleaning device and method"

Accordingly, an object of the present invention is to provide a protection device for a distribution line in a mountainous area so that foreign matter deposited in all directions including the inside as well as the outside of the suspension insulator can be reliably removed and the distribution line can be safely protected. will be.

Another object of the present invention is to provide a protection device for a distribution line in a mountainous area so that it can be conveniently installed without a constituent member that must be buried as deep as the height of a steel tower.

Another object of the present invention is to provide a protection device for a distribution line in a mountainous area suitable for protecting a distribution line in a mountainous area by washing a suspension insulator installed on a steel tower in a mountainous area.

Another object of the present invention is to provide a device for protecting a distribution line in a mountainous area so that the washing water spray nozzle can be effectively moved between the washing position and the standby position.

In order to achieve the above object, the present invention is installed on the left and right sides of the four vertical columns connected to the top of the four inclined columns, the upper horizontal member connecting the vertical columns, and a suspension that supports the distribution line in an insulated state. A machine room including a machine room body buried in the ground between the inclined main materials at the bottom of the pylon including the pylon arm in which the insulator is installed and the top opening is opened and closed by a cover;

A hoisting platform including a hoisting base body capable of being elevated through the space between the inclined main material and the vertical main material;

An elevating guide in which the upper end is fixed to the upper horizontal member and the lower end is fixed to the bottom of the machine room body, a guide roller provided on the lower surface of the hoisting base and guided to the elevating guide, the upper end is fixed to the upper horizontal member, and the lower end is fixed to the bottom of the machine room body. A lift driving means including a rack, a pinion that is provided on a lower surface of the lift base and meshes with the rack, and a lift drive motor that rotates the pinion;

A washing water supply means including a washing water tank, a washing water supply pump installed in the washing water tank, and a washing water supply hose connected to a discharge end of the washing water supply pump;

A one-stage expansion and contraction mechanism installed on the upper surface of the lift platform to expand and contract from side to side, a two-stage expansion and contraction mechanism that is movable left and right by the two-stage expansion and contraction mechanism, and the two-stage expansion and contraction mechanism installed on the upper side of the two-stage expansion and contraction mechanism, and the The washing water spray pipe connected to the washing water supply hose, connected to the front end of the washing water spray pipe, and formed in a C-shape with a plurality of washing water spray holes formed on the inner circumferential surface, and enclosing the suspension insulator by the first-stage expansion mechanism and the second-stage expansion mechanism. Including; a washing water spraying means including a washing water spraying nozzle moving left and right between the washing position and the standby position between the vertical columnar by retreating from the suspension insulator,

The washing water spraying means provides a protection device for a distribution line in a mountainous area, which is installed in a rotation symmetrical 180 degree with respect to the center of the lifting base body to simultaneously wash the left and right suspension insulators.

According to the protection device of the distribution line in the mountain area of the present invention, all including the inside of the suspension insulator as well as the outside of the suspension insulator are provided with a lift platform, a lift drive means, a one-stage extension mechanism, a two-stage extension mechanism, a washing water spray pipe and a washing water spray nozzle. Distribution lines can be safely protected by reliably removing foreign substances deposited in the direction.

In addition, according to the protection device for a distribution line in a mountainous area of the present invention, it can be conveniently installed without a constituent member that must be buried as deep as the height of a steel tower.

In addition, according to the protection device for a distribution line in a mountain area of the present invention, it is suitable for protecting a distribution line in a mountain area by washing suspension insulators installed on a steel tower in a mountain area.

According to the protection device for a distribution line in a mountainous area of the present invention, the washing water spray nozzle can be effectively moved between the washing position and the standby position.

1 to 9 show a preferred embodiment of a protection device for a distribution line in a mountainous area according to the present invention,
1 is a front view showing a distribution line using a steel tower,
2 is a perspective view showing a state in which the washing water spraying means is accommodated in a storage position in a machine room buried in the ground;
3 is a perspective view showing a state in which the washing water spraying means is located in a standby position at the top of the pylon;
4 is a perspective view showing a state in which the washing water spraying means is located in a washing position;
5 is an exploded perspective view,
6 is an exploded perspective view of a washing water spray pipe,
7 is a plan view of the first-stage and second-stage expansion and contraction means showing a washing state;
8 is a plan view of a washing water spray pipe and a washing water spray nozzle showing a washing state;
9 is a longitudinal sectional view showing a washing state.

Hereinafter, a device for protecting a distribution line in a mountainous area according to the present invention will be described in detail according to a preferred embodiment illustrated in the accompanying drawings.

In the following description, since coupling, connection, fixing, attachment, installation, and installation are performed by a conventional method, they are not specified, and detailed illustrations and descriptions are omitted.

1 to 9 show a preferred embodiment of a protection device for a distribution line in a mountainous area according to the present invention.

The protection device for a distribution line in a mountainous area according to the present embodiment includes a pylon 10 and a distribution line 40 supported in an insulated state through a suspension insulator 50 on the pylon 10, as shown in FIG. 1. It is applied to the overhead distribution line.

The steel tower 10 is a lower horizontal member that connects the four inclined main material 21, the vertical main material 22 coupled to the upper end of the inclined main material 21, and the inclined main material 21, the bottom of which is buried and fixed in the ground. (23) and the lower sand (24), the upper horizontal member (25) connecting the vertical column member (22) and the steel tower main body (20) having the upper member (26) and the right and left sides of the vertical column member (22) The arm housing (31), the upper horizontal member (23) and the arm member (32) connecting the outer end of the arm member (31), and having an insulator fixing piece (33) fixed to the outer end of the arm member (31). It includes a pylon arm 30.

The inclined main material 21 is buried and fixed in the ground through the base portion 27 at the lower end.

The upper end of the suspension insulator 50 is fixed to the outer end of the iron tamam 30 and is suspended downward, and the distribution line 40 is supported at the lower end of the suspension insulator 50.

The combination of the iron tower main material (21), the steel tower horizontal material (22), the steel tower material (23), the arm structure material (31), and the arm structure material (32) of the steel tower body 20 is made by a bolt/nut fastening method. Description is omitted.

The apparatus for protecting a distribution line in a mountainous area according to the present embodiment includes a machine room 100 buried in the ground at a location where the steel tower 10 is installed.

The machine room 100 includes a machine room body 110 buried in the ground between the bottom of the inclined main material 21 and having an upper surface opening, and a machine room cover 120 for opening and closing the upper surface opening of the machine room body 110 .

The machine room cover 120 forms a passage hole so that the lifting guide 310, the rack 330, and the washing water supply pipe 440, which will be described later, can pass, and is divided into four by cutting along the middle of the passage holes. It can be configured to open and close without interference of the lifting guide 310, the rack 330, and the washing water supply pipe 440.

In addition, gaskets or packings can be installed on the incision to prevent foreign substances from entering.

It is preferable that the machine room cover 120 is installed so that it cannot be opened except for the person concerned by a locking device for security.

The machine room body 110 is a lifting base body 210, a washing water supply hose 440, a first-stage expansion and contraction device 500, a second-stage expansion and contraction device 600, a washing water spray pipe 700 and a washing water spray nozzle ( 800) is accepted.

The protection device for a distribution line in a mountainous area according to the present invention includes a hoisting platform 200 installed to be elevating through a space between the inclined main material 21 and the vertical main material 22.

The lifting platform 200 includes a lifting base body 210 formed in a plate shape that can be lifted in the space between the inclined main material 21 and the vertical main material 22.

A hose passage hole 220 through which a washing water supply hose 440 to be described later passes is formed in the central portion of the lifting base body 210.

The elevating driving means 300 is a pair of left and right elevating guides 310, wherein the upper end is fixed to the inner surface of the left and right upper horizontal members 25 and the lower end is fixed to the bottom of the machine room body 110, and the elevating base body 210 ) Is rotatably supported on the left and right sides of the guide roller 320, which is guided to the elevating guide 310, is fixed to the inner surface of the front and rear upper horizontal member 25, and the lower end is fixed to the bottom of the machine room body 110 A pair of racks 330 before and after being rotated, and a pinion 340 that is rotatably supported on the front and rear sides of the lower surface of the lifting base body 210 and meshes with the rack 310, and the lower surface of the lifting base body 210 It is mounted on the side and includes a lifting drive motor 350 for rotating the pinion 340.

The elevating guide 310 has an elevating guide groove 311 into which the elevating guide roller 320 is inserted on the inner surface.

The lifting guide roller 320 is rotatably supported by a pair of roller brackets 321 fixed to the left and right sides of the lower surface of the lifting base body 210.

The rack 310 may be fixed to the upper horizontal member 25 as well as the lower horizontal member 23 by using a connecting member to be firmly supported.

The pinion 340 is rotatably supported by a pair of pinion brackets 341 fixed to the front and rear sides of the lower surface of the lifting base body 210.

The lifting drive motor 350 may be fixed to a motor mount 351 fixed to the front and rear sides of the lower surface of the lifting base body 210.

The pinion 340 may be directly connected to the motor shaft of the lifting drive motor 350 in a conventional manner.

The apparatus for protecting a distribution line in a mountainous area according to the present invention includes a washing water supply means 400 for supplying washing water.

The washing water supply means 400 includes a washing water tank 410 in which washing water is stored, a cover 420 for opening and closing the upper surface opening of the washing water tank 410, and washing water supply installed inside the washing water tank 410 It includes a pump 430 and a washing water supply hose 440 connected to the discharge end of the washing water supply pump 430.

The washing water tank 410 may be buried in the ground on one side of the pylon 10 or may be installed on the ground.

The washing water tank 410 opens the cover 420 and periodically cleans it so that foreign matter does not accumulate therein.

In addition, the washing water tank 410 may be left empty at normal times, and when the washing operation is started, the washing water may be filled by connecting a water supply hose from a water supply vehicle parked on the side of the road under the mountain area where the steel tower 10 is installed.

When the washing water tank 410 is buried in the ground, the water supply hose can be raised by manpower under the mountain area or transported using a helicopter.

When the washing water tank 410 is installed on the ground, the water supply hose and the washing water tank 410 may be transported by manpower or a helicopter.

In the drawing, 450 shows the water inlet plug.

The protection device of the distribution line in a mountainous area of the present invention includes a washing water spraying means (CWI) configured to be rotated symmetrically by 180 degrees with respect to the center of the lifting base body 210 to simultaneously wash the left and right suspension insulators 50. Includes.

The washing water spraying means (CWI) includes a first-stage expansion and contraction mechanism 500 installed on the upper surface of the lifting platform body 210, and a two-stage expansion and contraction mechanism 600 installed on the top of the first-stage expansion and contraction mechanism 500, The two-stage expansion and contraction mechanism 600 has a washing water spray pipe 700 installed to be expandable and contractible, and connected to the front end of the washing water spray pipe 700, as well as a first-stage expansion and contraction mechanism 500 and a second-stage expansion and contraction mechanism ( It includes; a washing water spray nozzle 800 moving left and right between the washing position surrounding the suspension insulator 50 by 600) and the standby position between the vertical main member 22 by retreating from the suspension insulator 50.

The first-stage expansion and contraction mechanism 500 is fixed to the upper surface of the lifting platform body 210 and has a first-stage expansion and contraction motor 510 having a hollow motor shaft 511 formed with a female thread on the inner circumferential surface, and the first-stage motor shaft 511 ) And a first-stage extension screw 520 having a male threaded portion engaged with the female threaded portion of), and a one-stage connection bracket 530 coupled to the front end of the first-stage extension screw 520.

The two-stage extension mechanism 600 is installed to be movable left and right on the top of the first-stage extension motor 510 and has a two-stage extension motor 610 having a hollow motor shaft 611 formed with a female thread on an inner circumferential surface thereof, And a two-stage extension screw 620 having a male threaded portion engaged with the female screw portion of the two-stage motor shaft 611, and a two-stage connection bracket 630 coupled to the front end of the two-stage extension screw 620.

The two-stage extension motor 610 includes a guide hole 541 that is elongated to the left and right in the guide plate 540 installed on the front and rear sides of the first-stage extension motor 510, and the front and rear surfaces of the two-stage extension motor 610 It is installed so as to be movable left and right by a guide protrusion 640 that is protruded and guided into the guide hole 541.

The two-stage expansion and contraction motor 610 has a front end portion coupled to the first-stage connection bracket 530 and is moved to the left and right by the first-stage expansion and contraction means 500.

The first-stage connection bracket 530 has a screw-through hole 531 having an inner diameter that does not interfere with the passage of the second-stage extension screw 620 so that it does not interfere with the operation of the second-stage extension screw 620 do.

A nozzle coupling hole 631 to which the washing water spray nozzle 800 is coupled is formed at an upper end of the two-stage expansion bracket 630.

The washing water spray pipe 700 is fixed to the upper surface of the two-stage extension motor 610 and is connected to the washing water supply hose 440 and the injection header 710, which is inserted so as to appear and protrude into the injection header 710. A first expansion and contraction pipe 720 and a second expansion and contraction pipe 730 inserted into the first expansion and contraction pipe 720 so as to be protruding and contracting are included in the first expansion and contraction pipe 720 to be expandable and contracted.

One end of the injection header 710 is blocked and the other end is open, and the injection header inner flange 711 is formed at the open end, and both ends of the first expansion and contraction pipe 720 are open, and the injection header inner flange 711 at one end. The first telescopic tube outer flange 721 and the other end are formed with a first telescopic tube inner flange 722, and the second telescopic tube 730 has both ends open and one end of the first telescopic tube inner flange 722 ) The first telescopic tube outer flange 731 is formed.

An O-ring 723 contacting the inner circumferential surface of the spray header 710 is fitted on the outer circumferential surface of the first expansion pipe outer flange 721, and a first expansion pipe 720 on the outer circumferential surface of the second expansion pipe outer flange 731 O-ring 732 in contact with the inner circumferential surface of the is fitted.

The washing water spray nozzle 800 is coupled to the two-stage connection bracket 630 and is connected to the front end of the washing water spray pipe 700.

The washing water spray nozzle 800 can wrap the suspension insulator 50 and is formed in a C shape so as not to come into contact with the suspension insulator 50 when approaching or retreating the suspension insulator 50, and a plurality of The injection hole 810 is formed.

The first stage extension mechanism 500, the second stage extension mechanism 600, the washing water spray pipe 700, and the washing water spray nozzle 800 installed on the upper surface of the lifting platform body 210 are It consists of two pieces each forming a rotational symmetry 180 degrees from the center.

The upper end of the washing water supply hose 440 is provided with branch portions 441 and 442 and is connected to the two injection headers 710.

In order to supply power to the elevating drive motor 350, the first-stage extension motor 510 and the second-stage extension motor 610, a mobile generator is transported by helicopter or used, or the pylon 10 or solar heat installed around it. An energy storage system (ESS) and a power adjustment subsystem (PCS) installed separately from the power generation device and the machine room 100 may be used.

The elevating drive motor 350, the 1-stage extension motor 510, and the 2-stage extension motor 610 use a remote controller including a remote control receiver installed in the machine room 100 and a remote control transmitter carried by an operator. Can be adjusted.

Hereinafter, a process of protecting a distribution line by washing a suspension insulator by the protection device of a distribution line in a mountainous area of the present invention will be described.

In the initial installation state and when the washing operation is not performed normally, as shown in Fig. 2, the lift platform 200, the lift drive means 300, the first stage extension means 500, the second stage extension means 600, and washing water The pipe 700 and the washing water spray nozzle 800 are located in the machine chamber body 110, and the extra portion of the washing water supply hose 440 is kept in a folded state and accommodated in the machine chamber body 110.

When the washing water tank 410 is buried in the ground, the water supply hose and the washing water tank 410 parked on the side of the road under the mountain area where the steel tower 10 is installed by transporting the water supply hose by manpower or by helicopter before starting the washing operation. ) Can be connected to a water supply hose to fill the washing water tank 410 with washing water.

When the washing water tank 410 is installed on the ground, the water supply hose and the washing water tank 410 may be transported by manpower or by helicopter.

When the machine room cover 120 is removed and the lift drive motor 350 is operated in the upward direction by remote control, the pinion 340 coupled to the lift drive motor shaft rotates in the upward direction to rotate the rack 330 and the pinion. By the action of the 340, the lifting base body 210 rises while being guided by the lifting guide 310 and the guide roller 320, and the first-stage expansion and contraction mechanism 500 and the second-stage expansion and contraction installed on the lifting base body 210 The instrument 600, the washing water injection pipe 700, and the washing water injection nozzle 800 are raised.

At this time, since the first-stage expansion mechanism 500, the second-stage expansion mechanism 600, the washing water spray pipe 700 and the washing water spray nozzle 800 are in a contracted state, they do not interfere with the pylon 10 during the ascending process.

When the lifting base 210, the first stage expansion mechanism 500, the second stage expansion mechanism 600, the washing water injection pipe 700 and the washing water injection nozzle 800 reach the standby position (refer to FIG. 3), remote control is performed. Accordingly, the lifting drive motor 350 is stopped so that the ascending operation is stopped.

At this time, a limit switch may be installed to stop the ascending operation at the upper limit height.

In order to move the washing water spray nozzle 800 to the washing position, the first-stage extension motor 510 and the second-stage extension motor 610 are operated in the extension direction by remote control.

When the first-stage extension motor 510 operates in the extension direction, the first-stage extension screw 520 is extended due to the screwing action of the female screw portion of the hollow motor shaft 511 and the male screw portion of the first stage extension screw 520 , The 2-stage extension motor 610 coupled to the 1-stage extension bracket 530 to the 1-stage extension screw 520 is moved in the extension direction.

When the two-stage extension motor 610 is operated in the extension direction, the two-stage extension screw 620 is extended due to the screwing action of the female screw portion of the hollow motor shaft 611 and the male screw portion of the two-stage extension screw 620 , The washing water spray nozzle 800 coupled to the two-stage extension bracket 630 is pulled in the direction of the washing position, and the second extension pipe 730 to which the washing spray nozzle 800 is coupled is the first extension pipe 720. When the second expansion pipe outer flange 731 is caught by the first expansion pipe inner flange 722, the first expansion pipe 720 comes out from the injection header 710, and the first expansion pipe When the outer flange 721 is caught by the inner flange 711 of the injection header of the injection header 710, the washing water injection pipe 700 does not extend any more.

When the first-stage expansion mechanism 500, the second-stage expansion mechanism 600, and the washing water injection pipe 700 are fully extended, the washing water injection nozzle 800 reaches a position surrounding the suspension insulator 50, that is, a washing position. (See Fig. 4).

When the washing water spray nozzle 800 reaches the washing position, the operation of the first-stage extension motor 510 and the second-stage extension motor 610 is stopped by remote control.

At this time, by installing a limit switch to stop the stretching operation when the washing water spray nozzle 800 reaches the washing position, it is possible to prevent the washing water spray nozzle 800 from colliding with the suspension insulator 50.

In order to clean the suspension insulator 50 by spraying the washing water, the washing water supply pump 430 is operated by remote control.

When the washing water supply pump 430 is operated, the washing water stored in the washing water tank 410 is washed water through the washing water supply hose 440, the injection header 710, the first expansion pipe 720, and the second expansion pipe 730. The washing water is pressurized and supplied to the spray nozzle 800.

At this time, the O-ring 723 contacting the inner circumferential surface of the injection header 710 is fitted on the outer circumferential surface of the first expansion pipe outer flange 721, and the first expansion pipe 720 is on the outer circumferential surface of the second expansion pipe outer flange 731. Since the O-ring 732 in contact with the inner circumferential surface of) is inserted, there is no leakage of washing water from the washing water spray pipe 700.

The washing water supplied by pressurization to the washing water spray nozzle 800 is sprayed through the washing water spray hole 810 to clean the suspension insulator 50. The washing water spray nozzle 800 is formed in a C shape and has a plurality of inner peripheries thereof. Since three washing water spray holes 810 are formed, the washing water is sprayed in all directions including the outside as well as the inside of the suspension insulator 50, so that foreign matter adhered to the entire suspension insulator 50 can be reliably removed ( See Fig. 8).

During this cleaning process, if the lifting drive motor 350 is repeatedly operated in the ascending direction and the downward direction at regular time intervals by remote control, the lifting base body 210, the one-stage expansion and contraction mechanism 500, 2 As the single telescopic mechanism 600, the washing water spray pipe 700, and the washing water spray nozzle 800 rise and fall, the washing water sprayed from the washing water spray nozzle 800 is suspended while ascending and descending between the upper position and the lower height of the suspension insulator 50. It is sprayed over the entire insulator 50 so that the entire suspension insulator 50 can be cleaned (see FIG. 9).

Here, since the descending operation is performed in the reverse direction of the above-described raising operation, a detailed description thereof will be omitted.

In this case, in order to repeatedly perform the raising operation and the lowering operation, an upward washing lower limit switch and a downward washing lower limit switch may be installed so that the lifting operation and the lowering operation are automatically performed.

When the washing operation is completed, the first-stage extension motor 510 and the second-stage extension motor 610 are operated in the contraction direction by remote control in order to move the washing water spray nozzle 800 to the standby position.

When the first-stage expansion and contraction motor 510 and the second-stage expansion and contraction motor 610 operate in a contraction echo, the first-stage expansion and contraction mechanism 500, the second-stage expansion and contraction device 600, the washing water injection pipe 700 and the washing water injection nozzle 800 ) Is located in the standby position by contracting in the reverse operation and in the above-described stretching operation (see Fig. 3).

When the first stage expansion and contraction mechanism 500, the second stage expansion and contraction mechanism 600, the washing water injection pipe 700 and the washing water injection nozzle 800 reach the standby position, the contraction operation is stopped by remote control.

At this time, the operation of returning to the standby position is to install a standby position limit switch so that the first stage expansion and contraction mechanism 500, the second stage expansion and contraction mechanism 600, the washing water spray pipe 700 and the washing water injection nozzle 800 reach the standby position. When it is done, the contraction operation can be automatically stopped so that it does not leave the standby position.

When the first stage expansion mechanism 500, the second stage expansion mechanism 600, the washing water injection pipe 700 and the washing water injection nozzle 800 reach the standby position, the lifting drive motor 350 is moved downward by remote control. To operate.

When the lifting drive motor 350 is operated in the downward direction, the lifting base body 210, the first stage expansion mechanism 500, the second stage expansion mechanism 600, and the washing water spray pipe 700 are operated in the opposite direction from the above-described upward operation. ) And the washing water spray nozzle 800 descends and is accommodated in the machine chamber body 110 (see FIG. 2).

When the lifting base body 210, the first stage extension mechanism 500, the second stage extension mechanism 600, the washing water spray pipe 700 and the washing water spray nozzle 800 descend and are stored in the machine room body 110, remote control To stop the descending operation.

At this time, the operation of descending to the storage position is performed by installing a storage position limit switch.

When the lifting base body 210, the first stage extension mechanism 500, the second stage extension mechanism 600, the washing water spray pipe 700 and the washing water spray nozzle 800 descend and are stored in the machine room body 110, automatically The descent operation can be stopped.

10: steel tower 22: vertical residence
25: upper horizontal material 30: pylon rock
40: distribution line 50: suspension insulator
100: machine room 110: machine room main body
200: lifting platform 210: lifting platform main body
300: elevating driving means 310: elevating guide
320: guide roller 330: rack
340: pinion 350: lifting drive motor
400: washing water supply means 410: washing water tank
430: washing water supply pump 440: washing water supply hose
500: 1-stage extension mechanism 510: 1-stage extension motor
520: 1-stage extension screw 530: 1-stage connection bracket
600: 2-stage extension mechanism 610: 1-stage extension motor
620: 2-stage extension screw 630: 2-stage connection bracket
700: washing water spray pipe 710: spray header
720: 1st new building 730: 2nd new building
800: washing water spray nozzle 810: washing water spray hole

Claims (1)

The bottom of the pylon including the four vertical columns connected to the upper part of the four inclined columns, the upper horizontal members connecting the vertical columns, and the pylon arm installed on the left and right of the vertical column and supporting the distribution lines in an insulated state. A machine room including a machine room body buried in the ground between the inclined circumferences of the upper surface and opened and closed by a cover; A hoisting platform including a hoisting base body capable of being elevated through the space between the inclined main material and the vertical main material; An elevating guide in which the upper end is fixed to the upper horizontal member and the lower end is fixed to the bottom of the machine room body, a guide roller provided on the lower surface of the hoisting base and guided to the elevating guide, a rack whose upper end is fixed to the upper horizontal member and the lower end is fixed to the bottom of the machine room body, An elevating drive means provided on a lower surface of the elevating base body and including a pinion engaged with the rack and an elevating drive motor for rotating the pinion; A washing water supply means including a washing water tank, a washing water supply pump installed in the washing water tank, and a washing water supply hose connected to a discharge end of the washing water supply pump; It is installed on the upper surface of the lift platform and can be moved to the left and right by the one-stage extension mechanism that expands and contracts left and right, and the two-stage extension mechanism that expands and contracts left and right, and the upper part of the second-stage extension mechanism can be expanded and contracted, and a washing water supply hose It includes a washing water spraying means including a washing water spraying pipe connected to the washing water spraying pipe and a washing water spraying nozzle connected to the front end of the washing water spraying pipe, and the washing water spraying nozzle is formed in a C shape with a plurality of washing water spraying holes formed on the inner circumferential surface, It is configured to move left and right between the washing position surrounding the suspension insulator by the mechanism and the two-stage expansion and contraction mechanism and the standby position between the vertical columnar by retreating from the suspension insulator, and the first-stage expansion and contraction mechanism is fixed to the upper surface of the lifting platform main body. A single-stage extension motor having a hollow motor shaft having a female threaded portion on the inner circumferential surface thereof, a single-stage extension screw having a male threaded portion meshing with the female screw portion of the first-stage motor shaft, and a one-stage connection bracket coupled to the tip of the first-stage extension screw Including, the two-stage expansion and contraction mechanism is installed to be movable left and right on the top of the first-stage expansion motor, and a two-stage expansion shaft motor having a hollow motor shaft having a female threaded portion formed on the inner circumferential surface, and meshing with the female threaded portion of the second-stage motor shaft A two-stage extension screw having a male thread and a two-stage connection bracket that is coupled to the tip of the two-stage extension screw and to which the washing water spray nozzle is coupled, and the washing water spraying means is rotated symmetrically by 180 degrees with respect to the center of the lifting base body. A protective device for distribution lines in mountainous areas that is installed and configured to wash the left and right suspension insulators at the same time.

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