KR20220170575A - Indirect hot line working tool for exchanging shackle and shackle demolition method using thereof - Google Patents

Abstract

The present invention relates to an indirect hot line working tool for replacing a shackle and a shackle demolition method using the same. The indirect hot line working tool for replacing a shackle comprises: a body unit; a gripping unit which is installed in the body unit to be opened and closed, and grips an object; a control unit which is connected to the gripping unit, and interlocks with external force applied by an operator, to control an opening and closing operation of the gripping unit; and a gripping reinforcing unit which is detachably coupled to the gripping unit, and prevents slipping of the gripping unit and the object.

Description

Indirect live wire tool for shackle replacement and shackle removal method using it {INDIRECT HOT LINE WORKING TOOL FOR EXCHANGING SHACKLE AND SHACKLE DEMOLITION METHOD USING THEREOF}

The present invention relates to an indirect hot-line tool for replacing a shackle and a shackle removal method using the same, and more particularly, to an indirect live-line tool for replacing a shackle that can be used when replacing a suspension insulator and a shackle removal method using the same.

In general, maintenance work of high voltage or special high voltage (23kV) distribution lines maintains the stability of power supply and minimizes blackout accidents to improve the reliability of power supply to power consumers. It is desirable to do

In this way, in order to increase the reliability of power supply, it is necessary to work in a state where the voltage is alive, that is, in an uninterruptible live-line state, and currently, most of the work is performed in a live-line state. The live wire work of these distribution lines is divided into two types, that is, a direct live wire method and an indirect live wire method.

In the case of the direct live wire method, a worker wears insulated gloves and performs work by contacting an extra-high voltage wire with a voltage of 22.9 kV. Although the work time is short, the risk is very high. has occurred quite a bit. Due to this danger, in recent years, an indirect live wire method of performing work using an insulated tool such as a hot stick has been mainly used.

On the other hand, in the case of replacing the shackle supporting the suspension insulator, there is no separate work method or tool applicable to this, so the operator must approach within the special high voltage approach (approximately 90cm). There is a problem that the risk of safety accidents always exists.

The background art of the present invention is disclosed in Republic of Korea Patent Registration No. 10-2244883 (registered on April 21, 2021, title of the invention: stick used for live work).

An object of the present invention is to provide an indirect hot-line tool for replacing a shackle and a shackle removal method using the same, which can perform a shackle replacement operation with a simple operation and ensure the safety of workers.

In order to solve the above problems, an indirect hot-line tool for replacing shackle according to the present invention includes: a main body; a gripping unit that is installed to be openable and openable in the main body unit and grips an object; an adjustment unit connected to the gripping unit and interlocking with an external force applied by an operator to adjust an opening and closing operation of the gripping unit; and a gripping reinforcing unit that is detachably coupled to the gripping unit and prevents slipping of the gripping unit and the object.

The gripping part may include a first gripping member fixed to one side of the body part; a second gripping member rotatably connected to one side of the main body and having a variable relative distance from the first gripping member according to a rotational direction; and a power transmission unit extending from the second holding member and connected to the adjusting unit.

One side of the power transmission unit is fixed to the second gripping member, and the other side is rotatably connected to the control unit.

The gripping part may further include a stopper part disposed to interfere with a rotational path of the second gripping member and limiting a rotational range of the second gripping member.

The gripping reinforcing part is made of a material having a higher friction coefficient than the gripping part, and adheres to the end of the gripping part by an elastic restoring force.

The gripping reinforcing parts are provided as a pair and are individually coupled to ends of the first gripping member and the second gripping member.

The control unit may include a manipulation unit supported by the main body and rotatably installed in both directions; and a drive unit that is interlocked with the rotation of the control unit to linearly move in a direction parallel to the longitudinal direction of the body unit, and opens or closes the holding unit according to the rotation direction of the control unit.

The shackle removal method using an indirect live wire tool for replacing shackles according to the present invention includes: removing the cotta pins from the shackle pins; pushing the shackle pin a predetermined distance by the gripper; holding the shackle with the gripping part to support the shackle; removing the shackle pin from the shackle; and separating the shackle from iron.

The pushing step may include contacting one side of the gripping part with the upper side of the shackle and contacting the other side with the lower side of the shackle pin; closing the holding part by applying an external force to the adjusting part; and pushing the shackle pin upward by a predetermined distance by pressing the end of the shackle pin with the other side of the gripping part.

In the indirect hot-line tool for replacing shackles according to the present invention, since the gripping part is formed to have a width and shape suitable for the shackle standard, the shackle replacement operation can be performed by indirect live-line work.

In addition, the indirect hot-line tool for replacing shackle according to the present invention can reduce work fatigue and improve work efficiency as the operator can remotely control the opening and closing operation of the gripping unit with a simple operation by the control unit. there is.

In addition, the indirect live wire tool for replacing shackles according to the present invention can grip an object more firmly by the gripping reinforcement part, and maintenance and management are easy because the gripping reinforcement part can be easily replaced.

In addition, in the shackle removal method according to the present invention, the head of the shackle pin can be easily gripped by a grab stick or the like as the shackle pin moves upward a predetermined distance before completely separating the shackle pin.

In addition, the shackle removal method according to the present invention can prevent the shackle from falling to the ground due to the tension caused by the suspension insulator or its own weight as the shackle is supported in the process of separating the shackle pin.

1 is a perspective view schematically showing the configuration of an indirect hot-line tool for replacing a shackle according to an embodiment of the present invention.
2 is an enlarged view schematically illustrating a configuration of a gripper according to an embodiment of the present invention.
3 is an enlarged view schematically illustrating a configuration of a control unit according to an embodiment of the present invention.
Figure 4 is a flow chart schematically showing the sequence of the shackle removal method according to an embodiment of the present invention.
5 is a flowchart schematically illustrating the sequence of step S200 according to an embodiment of the present invention.
6 to 9 are views schematically showing the work process of the shackle removal method according to an embodiment of the present invention.

Hereinafter, an embodiment of an indirect hot-line tool for replacing a shackle according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

In addition, in this specification, when a part is said to be “connected (or connected)” to another part, this is not only the case where it is “directly connected (or connected)”, but also “with another member in between” It also includes cases where it is indirectly connected (or connected). In this specification, when it is said that a certain part "includes (or includes)" a certain component, this does not exclude other components unless otherwise stated, but "includes (or includes)" other components. It means you can.

Also, like reference numerals may refer to like elements throughout this specification. Even if the same reference numerals or similar reference numerals are not mentioned or described in a particular drawing, the numerals may be described based on another drawing. In addition, even if there are parts not marked with reference numerals in specific drawings, the parts can be described based on other drawings. In addition, the number, shape, size, and relative difference of the detailed components included in the drawings of the present application are set for convenience of understanding, and may be implemented in various forms without limiting the embodiments.

1 is a perspective view schematically showing the configuration of an indirect hot-line tool for replacing a shackle according to an embodiment of the present invention.

Referring to FIG. 1 , an indirect hot wire tool 1 for replacing a shackle according to an embodiment of the present invention includes a body part 100, a gripping part 200, an adjusting part 300, and a gripping reinforcement part 400 do.

The body part 100 forms a rough outline of the indirect hot wire tool 1 for replacing shackles according to an embodiment of the present invention, and supports the gripping part 200 and the adjusting part 300 as a whole, which will be described later. The body portion 100 according to an embodiment of the present invention may be formed in the form of a rod having a circular cross section. The main body 100 is gripped by a worker during indirect live wire work. The body part 100 is moved by the operator's manipulation and changes the position of the gripping part 200 to be described later. Accordingly, the main body 100 may be made of a material having insulating properties, such as plastic or synthetic resin, to prevent electric shock accidents to workers. The main body 100 is formed to have a length greater than the safety distance so that a worker can secure a sufficient safety distance from the power facility.

The gripping unit 200 is installed in the body unit 100 to be openable and openable and grips an object. More specifically, both ends of the gripping unit 200 are opened during an opening operation to provide a space into which an object can be inserted, and during a closing operation, both ends come into contact with the object to grip the object. The gripping unit 200 may be made of a material of high rigidity such as metal to firmly grip the object and not be easily damaged by an external impact. Hereinafter, the object will be described as an example of the shackle (2).

2 is an enlarged view schematically illustrating a configuration of a gripper according to an embodiment of the present invention.

Referring to FIG. 2 , the gripping unit 200 according to an embodiment of the present invention includes a first gripping member 210, a second gripping member 220, a power transmission unit 230, and a stopper unit 240 do.

The first holding member 210 is fixed to one side of the main body 100 . The first holding member 210 according to an embodiment of the present invention is formed to have a substantially "L"-shaped cross section, and one end is fixed to the front end of the body portion 100. The first gripping member 210 has an inner surface seated around one side of the shackle 2 during the replacement operation of the shackle 2 and functions as a support for maintaining the posture of the gripping part 200 . Accordingly, the first gripping member 210 may induce the second gripping member 220 to be described later to come into contact with the other circumference of the shackle 2 at the correct position.

The second holding member 220 is rotatably connected to one side of the main body 100 . The relative distance between the second holding member 220 and the first holding member 210 varies according to the direction of rotation. The second holding member 220 according to an embodiment of the present invention is formed to have a substantially "L"-shaped cross section, and one end is rotatably connected to the front end of the body portion 100 by pin coupling or hinge coupling. Connected. As the second gripping member 220 is rotated to one side (clockwise direction in FIG. 2 ), the end moves away from the end of the first gripping member 210 and the gripping part 200 is opened. When the second holding member 220 is rotated to one side to the maximum, the first holding member 210 so that the shackle 2 can be smoothly inserted between the first holding member 210 and the second holding member 220 ) may be formed to have a greater value than the width of the shackle 2. As the second gripping member 220 is rotated to the other side (counterclockwise direction in FIG. 2 ), the end approaches the end of the first gripping member 210 and closes the gripping part 200 . When the second holding member 220 is rotated to the other side by more than a predetermined angle, the inner surface comes into contact with the other circumference of the shackle 2 to grip the shackle 2 .

The power transmission unit 230 extends from the second gripping member 220 and is connected to the control unit 300 . The power transmission unit 230 transfers the external force applied from the control unit 300 to the second gripping member 220 . The power transmission unit 230 according to an embodiment of the present invention may be formed to have a substantially rod shape. One side of the power transmission unit 230 may be fixed to the second gripping member 220 and the other side may be rotatably connected to an end of the driving unit 320 provided in the adjusting unit 300 to be described later. Accordingly, the power transmission unit 230 may convert the linear motion of the driving unit 320 into a rotational motion of the second gripping member 220 .

The stopper part 240 is disposed to interfere with the rotation path of the second holding member 220 and limits the rotation range of the second holding member 220 . The stopper part 240 according to an embodiment of the present invention may be formed in the form of a protrusion that protrudes vertically from the front end of the body part 100 . The stopper part 240 is disposed at a position in contact with the outer surface of the second holding member 220 when the second holding member 220 is rotated to the maximum in one side, that is, in the direction of opening the holding part 200 . Accordingly, the stopper part 240 can prevent unnecessary rotation of the second gripping member 220, and the excessive rotation of the second gripping member 220 prevents the gripping part 200 from being damaged due to interference with an adjacent object. It can be prevented.

The control unit 300 is connected to the gripping unit 200 and interlocks with an external force applied by an operator to adjust the opening and closing operation of the gripping unit 200 . Accordingly, the control unit 300 allows the operator to remotely manipulate the gripping unit 200, thereby improving the convenience and efficiency of work.

3 is an enlarged view schematically illustrating a configuration of a control unit according to an embodiment of the present invention.

Referring to FIG. 3 , the control unit 300 according to an embodiment of the present invention includes a manipulation unit 310 and a driving unit 320 .

The control unit 310 is supported by the body unit 100 and is rotatably installed in both directions. The control unit 310 according to an embodiment of the present invention includes a fixing unit 311, a rotation unit 312, and a connection unit 313.

The fixing part 311 is fixed to the outer circumference of the body part 100 and rotatably supports the rotating part 312 to be described later. The fixing part 311 may be integrally fixed to the main body 100 by welding or the like, or may be detachably fixed to the main body 100 by bolting or the like. The fixing part 311 may be disposed on the lower part of the main body part 100 so as to improve accessibility to the rotating part 312 of the operator during work. The body portion 311 may be firmly fixed to the body portion 100 and made of a material of high rigidity such as metal to prevent damage caused by an external force.

One side of the rotating part 312 is rotatably connected to the fixing part 311 . The rotating part 312 is formed to have the shape of a handle grippable by the operator on the other side, and receives an external force from the operator. The rotation unit 312 is rotated clockwise or counterclockwise around the fixing unit 311 in association with an external force applied by a worker.

The connecting part 313 extends from the rotating part 312 and is connected to a driving part 320 to be described later. The connecting part 313 is interlocked with the rotation of the rotating part 312 to linearly reciprocate the driving part 320 . The connection unit 313 may be rotatably connected to the driving unit 320 to smoothly convert the rotational motion of the rotating unit 312 into the linear motion of the driving unit 320 . As shown in FIG. 3, the connecting part 313 according to an embodiment of the present invention rotates together with the rotating part 312 when the rotating part 312 is rotated counterclockwise and pulls the driving part 320 downward, When the rotating part 312 rotates clockwise, it rotates together with the rotating part 312 and pushes the driving part 320 upward.

The drive unit 320 is interlocked with the rotation of the control unit 310 to linearly move in a direction parallel to the longitudinal direction of the body unit 100 . The drive unit 320 is linearly reciprocated according to the rotation direction of the control unit 310 and opens or closes the gripping unit 200 . The drive unit 320 according to an embodiment of the present invention is formed to have a substantially rod shape, and both ends are rotatably connected to the power transmission unit 230 and the connection unit 313, respectively. The drive unit 320 is moved downward along the longitudinal direction of the body unit 100 by the connection unit 313 as the rotation unit 312 rotates counterclockwise, and the second holding member 220 is moved to one side (FIG. 2). clockwise direction) to open the gripping part 200 . The drive unit 320 is moved upward along the longitudinal direction of the body unit 100 by the connection unit 313 as the rotation unit 312 rotates clockwise, and the second gripping member 220 is moved to the other side (refer to FIG. 2). counterclockwise) to close the gripping part 200 .

The gripping reinforcing unit 400 prevents the gripping unit 200 and the object from slipping, thereby enhancing the gripping performance of the gripping unit 200 . The gripping reinforcement unit 400 is detachably coupled to the gripping unit 200 . Accordingly, the gripping reinforcement part 400 can be easily replaced from the gripping part 200 when damage occurs. The gripping reinforcement part 400 according to an embodiment of the present invention may be formed to have the shape of a cap covered with an end of the gripping part 200 . The gripping reinforcing unit 400 may be made of a material such as rubber or silicone, which has a higher friction coefficient than the gripping unit 200 and has an elastic restoring force. The gripping reinforcement part 400 is in close contact with the end of the gripping part 200 after being covered on the end of the gripping part 200 by the elastic restoring force. Accordingly, the gripping reinforcement unit 400 prevents relative movement of the gripping unit 200 and the object by frictional force and can be firmly fixed to the gripping unit 200 by an elastic restoring force. The gripping reinforcement parts 400 are provided as a pair and may be individually coupled to the ends of the first gripping member 210 and the second gripping member 220 .

Hereinafter, a shackle removal method using an indirect hot wire tool 1 for replacing shackles according to an embodiment of the present invention will be described.

Figure 4 is a flow chart schematically showing the sequence of the shackle removal method according to an embodiment of the present invention, Figure 5 is a flow chart schematically showing the sequence of step S200 according to an embodiment of the present invention, Figures 6 to 9 Is a view schematically showing the work process of the shackle removal method according to an embodiment of the present invention.

Referring to Figures 1 to 9, first, the cotta pin (4) for restraining the shackle pin (3) to the shackle (2) is removed from the shackle pin (3) (S100). Hereinafter, step S100 will be described as being performed by a separate gripping tool such as the grab stick 6 as an example, but, unlike this, it is also performed by the indirect live wire tool 1 for replacing the shackle according to an embodiment of the present invention. It is possible.

The worker grips one end of the cota pin 4 by the grab stick 6. Thereafter, the cotta pin 4 is pulled out in the direction opposite to the insertion direction to extract the cota pin 4 from the shackle pin 3. Accordingly, the shackle pin 3 is converted into a separable state from the shackle 2 .

After step S100, the operator pushes the shackle pin 3 a predetermined distance from the shackle 2 using the indirect hot-line tool 1 for replacing the shackle according to an embodiment of the present invention (S200).

More specifically, first, the operator opens the gripping unit 200 by applying an external force to the adjusting unit 300 . Thereafter, one side of the gripping part 200 is brought into contact with the upper surface of the shackle 2, and the other side is brought into contact with the lower surface of the shackle pin 3 (S210). In FIG. 7, the first gripping member 210 is in contact with the upper side of the shackle 2, and the second holding member 220 is shown as an example in contact with the lower side of the shackle pin 3, but otherwise It is also possible that the second gripping member 220 contacts the upper surface of the shackle 2 and the first gripping member 210 contacts the lower surface of the shackle pin 3 .

The operator applies an external force to the control unit 300 to close the gripping unit 200 (S220).

The second holding member 220 is rotated to the other side (counterclockwise direction in FIG. 7) and presses the lower surface of the shackle pin 3 upward. The other side of the gripping part 200, that is, the second gripping member 220 presses the lower end of the shackle pin 3 and pushes the shackle pin 3 upward a predetermined distance (S230).

After step S200, the operator holds the shackle 2 with the gripping unit 200 to support the shackle 2 (S300). Accordingly, the shackle 2 can be prevented from falling to the ground due to the tension caused by the suspension insulator or its own weight in the process of separating the shackle pin 2 . In addition, as step S300 is performed after step S200, the operator can perform the work with only one indirect live wire tool 1 for replacing shackle.

After step S300, the operator removes the shackle pin 3 from the shackle 2 (S400). Step S400 may be performed by the grab stick 6. The operator grips the head of the shackle pin 3 with the grab stick 6. In this case, as the shackle pin 3 is moved a predetermined distance upward in step S230, the head portion of the shackle pin 3 protrudes upward from the shackle 2 and can be easily gripped by the grab stick 6 there is. After that, the operator pulls the shackle pin 3 upward to completely separate the shackle pin 3 from the shackle 2 and the complete iron 5. Accordingly, the shackle (2) is converted to a separable state from the wancheol (5).

After step S400, the operator separates the shackle 2 from the iron by moving the main body 100 (S500).

The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments. will understand

Therefore, the technical protection scope of the present invention should be determined by the claims below.

1: Indirect live wire tool for replacing shackle 2: Shackle
3: shackle pin 4: cota pin
5: Complete Iron 6: Grab Stick
100: body part 200: gripping part
210: first gripping member 220: second gripping member
230: power transmission unit 240: stopper unit
300: control unit 310: control unit
311: fixed part 312: rotating part
313: connection part 320: driving part
400: gripping reinforcement unit

Claims (9)

body part;
a gripping unit that is installed to be openable and openable in the main body unit and grips an object;
an adjustment unit connected to the gripping unit and interlocking with an external force applied by an operator to adjust an opening and closing operation of the gripping unit; and
An indirect hot-line tool for replacing shackles, characterized in that it comprises: a gripping reinforcing unit that is detachably coupled to the gripping unit and prevents slipping of the gripping unit and the object.
According to claim 1,
The holding part,
a first holding member fixed to one side of the main body;
a second gripping member rotatably connected to one side of the main body and having a variable relative distance from the first gripping member according to a rotational direction; and
An indirect hot-line tool for replacing shackle, characterized in that it comprises a; power transmission unit extending from the second gripping member and connected to the control unit.
According to claim 2,
The power transmission unit is an indirect hot-line tool for replacing shackle, characterized in that one side is fixed to the second gripping member, and the other side is rotatably connected to the control unit.
According to claim 2,
The holding part,
An indirect hot-line tool for replacing shackles, characterized in that it further comprises: a stopper portion arranged to interfere with the rotational path of the second holding member and limiting the rotational range of the second holding member.
According to claim 2,
The gripping reinforcing part is provided with a material having a higher friction coefficient than the gripping part, and is in close contact with the end of the gripping part by an elastic restoring force.
According to claim 5,
The indirect hot-line tool for replacing the shackle, characterized in that the gripping reinforcing parts are provided as a pair and are individually coupled to the ends of the first gripping member and the second gripping member.
According to claim 1,
The controller,
a manipulation unit supported by the main body and rotatably installed in both directions; and
An indirect hot-line tool for replacing shackles, characterized in that it comprises: a driving unit that moves linearly in a direction parallel to the longitudinal direction of the body part in conjunction with the rotation of the operation unit and opens or closes the gripping unit according to the rotational direction of the operation unit. .
In the shackle removal method using the indirect live wire tool for shackle replacement according to any one of claims 1 to 7,
removing cotapine from shackle pin;
pushing the shackle pin a predetermined distance by the gripper;
holding the shackle with the gripping part to support the shackle;
removing the shackle pin from the shackle; and
Shackle removal method comprising the; step of separating the shackle from iron.
According to claim 8,
The pushing step is
bringing one side of the holding part into contact with the upper side of the shackle and contacting the other side with the lower side of the shackle pin;
closing the holding part by applying an external force to the adjusting part; and
The shackle removal method comprising the; step of pushing the shackle pin upward a predetermined distance by pressing the end of the shackle pin with the other side of the gripper.

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