WO2022124563A1

WO2022124563A1 - Hot stick for indirect hot-line work

Info

Publication number: WO2022124563A1
Application number: PCT/KR2021/014683
Authority: WO
Inventors: 김영춘
Original assignee: 김영춘
Priority date: 2020-12-07
Filing date: 2021-10-20
Publication date: 2022-06-16
Also published as: KR102295694B1

Abstract

The present invention relates to a hot stick for indirect hot-line work. Provided is a hot stick comprising: an insulating stick having ㄱ-shaped guide holes formed on both sides; a hook member which is coupled to the front end of the insulating stick and includes a shaft portion, a C-shaped hook portion extending from the shaft portion, and a nut cap fastened to the second external thread portion; an upper cap coupled to the upper portion of the insulating stick; a support pipe that is inserted into the insulating stick and passes through and supports the shaft portion of the hook member; a compression spring interposed between the bottom surface of the upper cap and the support pipe and exerting an elastic force; a spring support plate for supporting the lower end of the compression spring; a slide cover member which is installed on the upper circumference of the insulating stick so as to be able to move vertically, and has long holes formed in opposition on the outer circumference and exposing or blocking an open section of the hook portion from the insulating stick according to the position; a bolt which passes through the long holes, the guide holes of the insulating stick, and a through-hole of the hook member from the outside of the slide cover member; and a nut fastened to the bolt.

Description

Hot stick for indirect live wire work

The present invention relates to a hotstick for indirect live wire work, and more particularly, by improving the hotstick for the purpose of using a hook for hanging and pulling a power line, stably gripping the power line and pulling it by hooking it, thereby ensuring safe live wire work and holding the insulating stick It relates to a hotstick for indirect live wire work that can significantly reduce the fatigue of live wire work.

In general, live line work is a work performed in a state in which current is energized in the transmission line for maintenance work of the high voltage transmission line.

In the work for the maintenance of the transmission line, it is necessary to pay special attention because of the risk of fatal safety accidents because the directly conducting conductors are often exposed such as cutting, stripping, or installing bypass lines.

In particular, when it is necessary to remove the covering of the cable, there are many cases where they wear red coated gloves without using even proper insulating gloves, which causes considerable safety accidents.

In the case of single-core wires, which are most frequently encountered by internal wire majors, the cable sheath removal is usually performed with a general subtractor and cutter, so to prevent safety accidents, if there is no insulated glove, wear two general gloves to perform the work.

In order to prevent such an electric shock accident, an insulating stick or a smart stick is often used in live wire work.

The smart stick has a tool that can be operated by the operator attached to one end of the stick, and a work tool that receives the power operated from one end is installed on the other end of the stick so that the distance between the power line and the operator can be widened as much as possible. can be drastically reduced.

If you look at the types of smart sticks, they are composed of a tip tool that is installed and used at the tip together with an insulating stick, which is divided into four types: rotor stick, hot stick, grab stick, and hand stick.

The insulating stick is manufactured and used with a length of approximately 1.7M, and a tip tool mounting adapter is provided at the tip end, and one or two skirts are attached in the longitudinal direction. A manual lever is installed and used.

The rotor stick provides hydraulic pressure to the insulating stick as a medium and is equipped with a cutting tool, a peeling machine, a taping machine, a rotating tool, a clamp rotating machine, etc. Tip tools such as hooks, compressor holders, and knives are mounted and used, and the grab stick is mainly used to grip round-shaped materials such as power lines and sleeves, and the hand stick is used for gripping sleeves, gripping power line covers, gripping tapes, etc. used for the purpose

Normally, live wire work is a non-contact type where two workers in a group ride a basket and get close to 2M where the power line is located. One person will cut the power line using a rotor stick, slash, and tap.

The live wire work is performed by pulling the power line using the hook until any one work is completed and releasing the hook from the power line after the final work is completed.

Looking at the technology related to live wire work as described above, Republic of Korea Patent Registration No. 10-2028010 (Name: All clamp stick with rotation function for indirect live wire work and a tool rotation operation method for indirect live wire using the same, registration date: September 26, 2019 , hereinafter referred to as 'patent literature') is disclosed.

Looking at the structure of the patent document,

Stick provided with a stick hollow part on the inside; a rotating pipe having a pipe hollow inside and rotatably disposed in the stick hollow; an operation rod disposed to be linearly movable in the pipe hollow portion; a manipulation knob assembly disposed at a rear end of the stick and connected to the actuating rod so as to move in a straight line relative to the stick; a rotating holder connected to the rotating pipe, rotatably coupled to the tip of the stick, and provided with a holder guide groove inside; A hook having a slider connected to the operation rod and arranged to move linearly in the holder guide groove, and a hook rotatably arranged on the slider to rotate in contact with the rotating holder when the slider moves toward the stick. assembly; a handle rotatably coupled to an outer side of the stick; and a power transmission mechanism for transmitting the rotational force of the handle to the rotation pipe, wherein the operation knob assembly includes an operation knob disposed at a rear end of the stick to be able to move and rotate in a straight line so as to surround an outer surface of the stick; and a knob coupling member coupled to the manipulation knob so as to be movable together with the manipulation knob and disposed in the stick hollow part and provided with a fixing protrusion protruding perpendicular to the linear movement direction of the manipulation knob on one side, the stick A stopper guide groove disposed in the hollow portion and disposed parallel to the moving direction of the manipulation knob assembly so that the fixing protrusion is inserted therein, and the stopper guide groove so that the fixing protrusion is inserted, it is connected to the rotation direction of the manipulation knob A knob stopper having a stopper fixing groove to be arranged; it is a grip all clamp stick with a rotating function for indirect live wire work configured including.

A front end of the operation rod is rotatably coupled to the slider, and a rear end of the operation rod is rotatably coupled to the operation knob assembly.

The manipulation knob assembly includes a locking member tiltably coupled to the fixing protrusion through a manipulation knob coupling hole provided on one side of the manipulation knob and having a locking member hook portion protruding toward the knob stopper, the knob stopper comprising: , and a plurality of locking grooves spaced apart from each other in a linear movement direction of the manipulation knob so that the locking member hook part can be engaged.

The hook assembly includes a spring coupled to the slider so as to apply an elastic force to the hook to restore the hook to its original state when the hook deviates from the holder guide groove.

The slider of the hook assembly includes a slider coupling hole into which an end of the actuating rod is inserted, and a slider intermediate groove provided in the middle to be connected to the slider coupling hole, and the actuating rod includes an end of the slider coupling hole. The slider is rotatably coupled to the slider to reach the intermediate groove through the slider, and a tip coupling member coupled to the end of the operation rod is disposed in the slider intermediate groove to prevent the operation rod from departing from the slider.

and a bearing coupled to the operation rod to rotatably support the operation rod, and disposed in the intermediate groove of the slider to be interposed between the inner surface of the slider and the front end coupling member.

A rotating pipe coupling part having a non-circular cross-sectional shape is provided at the end of the rotating pipe, and a holder coupling hole corresponding to the rotating pipe coupling part is provided in the rotating holder so that the rotating pipe coupling part is coupled to prevent relative rotation.

The power transmission mechanism includes a first bevel gear which is disposed coaxially with the central axis of rotation of the handle and is coupled to the handle, and is coupled to an end of the rotary pipe so as to be gear-connected to the first bevel gear and is disposed coaxially with the rotary pipe. and a second bevel gear.

The first bevel gear is provided with a wrench insertion groove exposed to the outside of the stick so that the handle can be detachably inserted.

a rotation restraining member movably disposed in the stick hollow portion to restrict rotation of the rotation pipe by interfering with the second bevel gear; and a rotation restriction member knob disposed to be exposed to the outside of the stick on one side of the stick for user manipulation, and coupled to the rotation restriction member so as to move together with the rotation restriction member.

The rotation restraint member is arranged to be movable in a straight line in the longitudinal direction of the rotation pipe, and a rotation restraint concavo-convex portion disposed on the second bevel gear so as to be engaged with the rotation restraint member hook portion provided in the rotation restraint member; include

In the patent document configured as described above, in operating an indirect live wire tool necessary for indirect live wire work, without turning the stick itself by configuring the handle, when the operator turns the handle while the rotation restraining member is spaced from the rotation restraint concavo-convex part, the handle of the rotational force is transmitted to the rotating holder through the rotating pipe, the rotating holder rotates with respect to the stick, and when the rotating holder rotates, the hook also rotates with the rotating holder while clamping the work object, so that the operator only rotates the handle It is made possible to operate the tools required for the operation of the work object.

That is, as the operator grips and manipulates the stick, the hook of the gripper can catch the work piece, as the operator manipulates the manipulation knob assembly, the work piece can be firmly clamped with the gripper, and with the gripper as the operator manipulates the handle. This allows the work object to be rotated.

However, the patent document as described above has the advantage that the position of the clamped object can be secured by rotation of the gripper, but the operation structure for hanging the object (power line) using a hook and the configuration thereof are very complicated, and such Due to the complexity of the configuration, an expensive purchase cost is incurred, and there is a problem in that the worker who handles the stick is rather fatigued due to the weight of the stick.

The present invention was invented to solve the problems of the related art as described above, and by improving the hotstick for the purpose of using a hook for hooking and pulling the power line, it stably grips the power line and pulls it, thereby ensuring safe live wire work and insulating An object of the present invention is to provide a hot stick for indirect live wire work that can significantly reduce the fatigue of live wire work, which involves holding and working with a stick.

According to the present invention for achieving the above object, in the hotstick for indirect live work used for live work for the purpose of hanging and supporting the power line in a non-contact manner,

The hot stick comprises: an insulating stick in which L-shaped guide holes in which horizontal and vertical parts are perforated on the front end of the hollow pipe are formed on both sides, and screw coupling holes are formed in the upper and lower portions of the guide hole; A first male screw portion is formed on an upper portion, a second male screw portion is formed on a lower portion, and a shaft portion having a through hole formed in the longitudinal direction, a C-shaped hook portion extending from the shaft portion, and a nut cap fastened to the second male screw portion are included. a hook member coupled to the tip of the insulating stick in a configuration to: It is a plug type in which one side is inserted and fixed on the upper part of the insulating stick, and a fastening boss fastened to the first male screw part of the hook member is formed in the center, and a fastening hole matched with the screw coupling hole of the insulating stick and fastened with a fastening screw is on the outer periphery an upper cap in which the formed insertion coupling part is integrated; a support pipe inserted into the insulating stick as a hollow pipe and fixed with a fastening screw through an external threading hole of the insulating stick to penetrate and support the shaft portion of the hook member; a compression spring interposed between the bottom surface of the upper cap and the support pipe to impart elasticity; a spring support plate provided to be movable up and down in the upper shaft portion of the support pipe to support the lower end of the compression spring; A hollow tube body is installed so as to be movable up and down around the upper side of the insulating stick, and a long hole matching the vertical part of the guide hole is formed to face on the outer periphery to expose the open part of the hanger according to the position from the insulating stick. or a slide cover member for blocking; It characterized in that it comprises a; long hole, the guide hole of the insulating stick, the bolt passing through the through hole of the hook member from the outside of the slide cover member, and a nut fastened to the bolt.

A magnet is provided on one side of the fastening boss of the upper cap according to the present invention, and a buzzer sound is generated by switching on and off by magnetic force when in proximity to the magnet on the outer periphery of the slide cover member to cover the slide cover member for the insulating stick It is characterized in that it is equipped with a switching box that informs the fixation of the.

The lower end of the insulating stick according to the present invention is characterized in that the traction ring is provided.

In the hotstick for indirect live wire work according to the present invention, when the power line is hooked to the C-shaped hook and the insulation stick is rotated, the slide cover member blocks the open part of the hook to prevent the power line from being separated, and By assisting and maintaining the operator, it can improve the workability to use another live wire tool, as well as reduce the fatigue of holding on to the insulation stick and simple handling. The effect of lowering is provided.

1 is a perspective view showing a hot stick for indirect live wire work according to the present invention;

2 is a perspective view showing the configuration of a hot stick according to the present invention in isolation;

3 is a cross-sectional view showing a state in which main parts of a hot stick according to the present invention are coupled;

4 is a side view illustrating a live wire operation using a hotstick according to the present invention;

5 is a cross-sectional view showing a hot stick according to the present invention,

6 is a cross-sectional view illustrating a state in which the power line is hung in FIG. 5 and the stick is pulled;

7 is a cross-sectional view illustrating a state in which the stick is rotated in FIG. 6;

8 is a cross-sectional view taken along line A-A of FIG. 7 showing the contact state of the magnetic switch according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention, so at the time of the present application, they can be replaced It should be understood that various equivalents and modifications may exist.

In the hotstick 100 for indirect live work used for live work for the purpose of hanging and supporting the power line 1 in a non-contact manner,

The hot stick 100,

Insulation stick 10, hook member 20, upper cap 30, support pipe 40, compression spring 50, spring support plate 60, slide cover member 70 and bolts (B), it is composed of a nut (N).

The insulating stick 10 is a hollow pipe usually made of an insulating material, and L-shaped guide holes 11 in which horizontal and vertical parts are perforated are formed on both sides at the tip side thereof, and an upper portion of the guide hole 11 is formed. and

screw coupling holes

12 and 13 are formed at the bottom.

2, the hook member 20 has a first male screw portion 21a formed on the upper portion, a second male screw portion 21b formed on the lower portion, and a through hole 21c in the longitudinal direction. ) formed on the shaft portion 21, the C-shaped hook portion 22 extending from the shaft portion 21, and the nut cap 23 fastened to the second male screw portion 21b, and the insulation stick It is coupled to the tip of (10).

The upper cap 30 is a plug type having one side inserted and fixed to the upper portion of the insulating stick 10, and a fastening boss 31 fastened to the first male screw portion 21a of the hook member 20 is formed in the center thereof, , The insertion coupling part 32 formed on the outer periphery of the coupling hole 32a coincident with the screw coupling hole 12 of the insulating stick 10 and fastened with the coupling screw S is integrated.

That is, the upper cap 30 is a fixture for supporting the hook member 20 from the insulating stick 10 .

The support tube 40 is a hollow tube body, and as shown in the attached FIG. 3, it is inserted into the insulation stick 10 in a form including a hook member, a compression spring, a spring support plate and an upper cap, It is fixed with a fastening screw (S) through the external screw coupling hole (13) of the insulating stick (10) to penetrate and support the shaft portion (21) of the hook member (20).

The compression spring 50 is interposed between the bottom surface of the upper cap 30 and the support pipe 40 to impart elasticity, and is compressed when the slide cover member 70 moves to the upper portion of the insulating stick 10 . it was made to

The spring support plate 60 is provided so as to be movable up and down on the upper shaft portion 21 of the support pipe 40 to support the lower end of the compression spring 50, and according to the penetration of the bolt (B), a hook member ( 20) is always positioned above the through-hole 21c on the side of the shaft 21 to stably support and support the compression spring 50.

The slide cover member 70 is a hollow tube body and is installed to be movable up and down around the upper side of the insulating stick 10, and has a long hole 71 matching the vertical part of the guide hole 11 on the outer periphery. It is formed to face each other to expose or block the open portion of the hook portion 22 depending on the position from the insulating stick 10 .

The bolt (B) and the nut (N) fastened to the bolt (B) have a long hole 71 from the outside of the slide cover member 70 , a guide hole 11 of the insulating stick 10 , and a hook member 20 . By being fastened through the through hole 21c, the slide cover member is configured to vertically flow with respect to the insulating stick.

On the other hand, in the present invention, a magnet 33 is provided on one side of the fastening boss 31 of the upper cap 30, and on the outer periphery of the slide cover member 71, magnetic force is applied when the magnet 33 is in close proximity. A switching box 80 is provided to inform the fixing of the slide cover member 70 to the insulating stick 10 by generating a buzzer sound by switching on and off.

This is to keep the worker hooking the power line (C) and pulling the slide cover member (70) up to the position to block the open portion from the hook part (22) of the hook member (20). This is to inform the operator of the fixed state of the slide cover member 70 by rotating it.

The fixing of the slide cover member 70 to the insulating stick 10 will be described in detail below.

On the other hand, a traction ring 14 is provided at the lower end of the insulating stick 10 as shown in FIG. 2 . This is to keep the insulation stick in a pulled state by binding to equipment such as a carabiner worn by a worker on a work belt, etc. and hanging a power line.

The operation according to the use of the hotstick for indirect live wire work according to the present invention configured as described above is as follows.

In the work for the maintenance of the transmission line, two workers in a group ride a basket on the power line with a low degree of precision, and one worker supports the power line (C) with a hot stick (100), and the other worker holds the power line with a rotor stick. Indirect live wire work is performed in a non-contact type such as cutting, stripping, or bypassing the power line using

As described above, the use of the hotstick 100 usually uses the hook member 20 in which the C-shaped locking part 22 is integrated, hooks the power line C and pulls it with an appropriate force, and maintains this state. .

When the power line (C) is hung and the insulating stick 10 is pulled toward the operator, the slide cover member 70 installed at the tip moves to the upper part of the insulating stick 10 based on the penetrating bolt (B), and the C-shaped locking part By blocking the open part of (22), the power line is not separated.

In the above state, the insulating stick is pulled in the pulling direction along the vertical part of the long hole 71 of the slide cover member 70 and the guide hole 11 of the insulating stick 10 based on the bolt (B). It moves to the tip side of the insulating stick. At this time, when the worker holding the insulation stick 10 in a state in which the insulation stick 10 is pulled in the pulling direction as much as possible rotates the insulation stick in the right direction, which is the normal locking direction, the shaft portion of the bolt is the guide hole 11 . The state is guided to the horizontal part extending laterally from the end of the vertical part, and it is possible to maintain the state in which the slide cover member 70 is moved as described above.

The insulation stick 10 pulled as described above is compressed at both ends supported by the bottom of the spring support plate 60 and the upper cap 30 located above the through hole 21c on the shaft 21 side of the hook member 20 . The spring 50 is maintained in a compressed state to prevent the separation of the power line C from the C-shaped hook portion 22 .

In the state of maintaining the fixed state of the slide cover member 70 as described above, the operator connects the traction ring 14 provided at the lower end of the insulating stick 10 to the clip provided on the carabiner, belt, etc. When the power line (C) can be maintained in a pulled state, in this state, the operator can perform another auxiliary operation, etc.

On the other hand, in the state of fixing the slide cover member 70 as described above, the magnet 33 provided on the upper cap 30 is the slide cover according to the rotational operation of the insulating stick 10, as shown in the attached FIG. When it coincides with the switching box 80 provided on the outside of the member 70, the power of the switching box is turned on and a buzzer sound is generated. It is possible to inform the operator that the member 70 is fixed.

The buzzer sound as described above is not generated continuously, but is generated for less than 3 seconds for the operator to recognize. Conversely, when the insulating stick 10 is rotated to the left, the direction between the magnet 33 and the switching box 80 is In the separated state, the buzzer sounds once again.

The state as described above is a state in which the vertical part, which is switched from the horizontal part of the guide hole 11 for the insulating stick, and the long hole 71 on the side of the slide cover member 70 coincide with the bolt, that is, the operator can use the insulating stick 10 is in a state of holding, and if the insulating stick being pulled is pushed in the direction in which the power line was hung, the slide cover member is located in the initial state as shown in FIG. 5 attached by restoring the compression spring 50 inside the insulating stick. It is possible to detach the hook member 20 from the power line (C) being hung through the open portion of the C-shaped hook portion (22).

The operation as described above can guide the power line with a simple structure and hang it with the C-shaped hook, block or release the open part, and fix the power line so that the power line does not come off while the slide cover member is moved to the upper part of the insulating stick. Because it can do it, it provides the advantage of effectively handling the power line in indirect live wire work, and also provides the advantage of reducing the fatigue of the worker who always held the insulation stick with both hands.

Therefore, the simple handling convenience of the hotstick during live wire work enables safe work by preventing the breakaway of the power line while maintaining the state of hanging the power line. There is an advantage that there is no such thing, and there is an advantage that the production cost is low accordingly.

As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

Claims

In the hotstick 100 for indirect live work used for live work for the purpose of hanging and supporting the power line (C) in a non-contact manner,

The hot stick 100,

Insulation in which L-shaped guide holes 11 in which horizontal and vertical parts are perforated on the tip side of a hollow pipe are formed on both sides, and threaded holes 12 and 13 are formed in the upper and lower portions of the guide hole 11 a stick 10;

A first male screw portion 21a is formed on the upper portion, a second male screw portion 21b is formed on the lower portion, a shaft portion 21 having a through hole 21c formed in the longitudinal direction, and a shaft portion 21 extending from the shaft portion 21 a hook member 20 coupled to the tip of the insulating stick 10 in a configuration including a C-shaped hook portion 22 and a nut cap 23 fastened to the second male screw portion 21b;

It is a plug type having one side inserted and fixed to the upper part of the insulating stick 10, and a fastening boss 31 fastened to the first male screw part 21a of the hook member 20 is formed in the center, and the insulating stick is screwed together. The upper cap 30 is integrated with the insertion coupling part 32 formed on the outer periphery of the fastening hole 32a which is matched with the ball 12 and is fastened with a fastening screw (S);

The hollow tube body is inserted into the insulating stick 10 and fixed with a fastening screw S through the external screw coupling hole 13 of the insulating stick 10, and the shaft portion 21 of the hook member 20 ) and a support pipe 40 to support through;

a compression spring 50 interposed between the bottom surface of the upper cap 30 and the support pipe 40 to impart elasticity;

a spring support plate 60 provided on the upper shaft portion 21 of the support pipe 40 to be movable up and down to support the lower end of the compression spring 50;

The hollow tube body is installed so as to be movable up and down around the upper side of the insulating stick 10, and a long hole 71 coincident with the vertical part of the guide hole 11 is formed on the outer periphery to face the insulating stick 10 ) from the slide cover member 70 for exposing or blocking the open portion of the C-shaped hook portion 22 depending on the position;

Bolts (B) and bolts (B) passing through the long hole (71), the guide hole (11) of the insulating stick (10), and the through hole (21c) of the hook member (20) from the outside of the slide cover member (70) and a nut (N) that is fastened with; and

A magnet 33 is provided on one side of the fastening boss 31 of the upper cap 30, and on the outer periphery of the slide cover member 70, a switch on/off switch by magnetic force when the magnet 33 is in proximity A hot stick for indirect live wire work, characterized in that it is provided with a switching box (80) that generates a low sound and informs the fixing of the slide cover member (70) to the insulating stick (10).
According to claim 1, wherein a magnet (33) is provided on one side of the fastening boss (31) of the upper cap (30), and on the outer periphery of the slide cover member (71), the magnet (33) close to the magnet (33). A hotstick for indirect live wire work, characterized in that it is provided with a switching box (80) informing the fixing of the slide cover member (70) with respect to the insulating stick (10) by generating a buzzer sound by switching on and off.
The hot stick for indirect live wire work according to claim 1, characterized in that a traction ring (14) is provided at the lower end of the insulating stick (10).