Electric insulated rotary grip all-clamp stick with double pole operating section for indirect live-line work and method for operating indirect live-line work equipment using the same

Abstract

The present invention relates to a clamp stick used for live-line work, and more particularly to a technical field of an electric insulated rotary grip all clamp stick having a double pawl operating part for indirect live-line work, which uses a rack and pinion gear to configure a double pole operating part so that a worker can use it safely and more conveniently in live-line or uninterrupted work that does not interrupt the supply of electricity, and which allows a holder part and a hook assembly to be operated by the operating part to firmly connect a tip tool to the tip of the holder part, and which minimizes the length of the operating part so that a worker can easily hold and operate the tip tool, remove a binding wire from a rotary winding and unwinding type extra-high voltage distribution line, and remove foreign objects including the coating of an electric wire, and a method of operating an indirect live-line work tool using the same.

Description

[Technical Field]

[0001] The present invention relates to a clamp stick used in live-line work, and more particularly to an electric insulated rotary grip all clamp stick with a double-pole operating part for indirect live-line work, which has a double-pole operating part using a rack and pinion gear to enable safer and more convenient use by workers in live-line or uninterruptible power work that does not interrupt the supply of electricity, and which allows the operator to operate a holder part and a hook assembly using the operating part to firmly connect a tip tool to the tip of the holder part, and which minimizes the length of the operating part to allow the operator to easily grip and operate the tip tool, remove binding wires from rotary winding and unwinding type extra-high voltage distribution lines, and remove foreign objects including the coating of electric wires, and a technical field of a method for operating an indirect live-line work tool using the same. [Background technology]

[0002] Generally, live-line work refers to work carried out while electricity is still being transmitted to the distribution line. Because live-line work poses a high risk of safety accidents, it is carried out in places where it is difficult to cut off the power, such as in power transmission and distribution facilities, and users who carry out live-line work must always wear insulating protective equipment or protective gear.

[0003] Live line work on power distribution lines can be divided into direct live line work and indirect live line work. Direct live line work is a method in which the user puts on insulated gloves inside an insulated bucket and works by directly touching the live line. Direct live line work is simple and can save work time, but it has the disadvantage of being highly susceptible to electric shock and often resulting in loss of life. Indirect live line work is a non-contact indirect work method using insulated tools such as hot sticks. Indirect live line work takes more time, but it can significantly reduce the risk of safety accidents.

[0004] Live-line work includes inspecting, repairing, replacing, and cleaning components of electric lines such as support insulators, and depending on the type of work, direct live-line work methods or indirect live-line work methods can be used appropriately.

[0005] Recently, when carrying out new construction and maintenance work on power distribution lines, the proportion of live-line or uninterruptible work that does not interrupt the supply of electricity is increasing. In the past, most work was done directly, with the user coming into direct contact with high-voltage power lines, but now, for safety reasons, the work method is being converted to non-contact indirect live-line work.

[0006] In order to carry out indirect live-line work, tools for indirect live-line work are required. However, the tools currently available only cover a very small portion of indirect live-line work, or the work is carried out using outdated tools that are not suitable for the current work environment, resulting in a decrease in safety. Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been devised to solve the problems of the prior art described above, and its main object is to provide an electric insulated rotary grip oar clamp stick with a double-pole operating part for indirect live-line work, which is simple and convenient to operate, allowing workers to safely and easily perform indirect live-line work on increasingly complex distribution lines. In particular, the double-pole operating part is configured using a rack and pinion gear in the hollow of the operating knob to minimize the length of the operating part, thereby making it easy to grip and operate not only when connecting and operating a tip tool, but also when removing binding wires from rotary-winding / unwinding type extra-high voltage distribution lines and removing foreign objects including the coating of the electric wire, and a method for operating an indirect live-line work tool using the same. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the present invention provides an electric insulated rotary grip oar clamping stick with a double pawl operating part for indirect live-line work, which clamps a work object using a hook assembly inserted into a holder part, or rotates the clamped work object by using an electric handle connected to the holder part via an insulating rod part, the electric insulated rotary grip oar clamping stick comprising: an operating rod that passes through the hollow of the insulating rod part and has a front part connected to the rear part of the hook assembly; and a double pole operating part that is connected to the rear part of the insulating rod part and adjusts the depth to which the hook assembly is inserted into the holder part.

[0009] Furthermore, the operating unit of the present invention includes: an extension rod portion provided at a rear portion of the insulating rod portion and having a hollow; an operation knob provided at an outer periphery of the extension rod portion and having a hollow so as to be movable back and forth; a lower rack gear provided in the hollow of the extension rod portion and having a length in the front-to-rear direction, the lower rack gear being connected to a rear portion of the operating rod; a pinion portion provided at the rear portion of the extension rod portion and in the hollow of the operation knob, the pinion portion being hollow so that a rear portion of the lower rack gear passes through, the pinion gear corresponding to the lower rack gear being provided above the lower rack gear; and an upper rack gear provided at a length in the front-to-rear direction, the upper rack gear being fixedly provided in the hollow of the operation knob and fixedly positioned above the pinion portion, the upper rack gear corresponding to the pinion gear and moving in the same direction as the moving direction of the lower rack gear by the pinion gear.

[0010] In addition, the operating part of the present invention includes a ratchet plate that is fixedly attached to the outer periphery of the extension rod part and fixedly attached to a lower part of the upper rack gear, and has a pair of ratchet gears formed on the front and rear of the upper surface so as to be located on both sides of the upper rack gear, and the operating knob includes a first pawl that is attached to the front of the upper part and is attached to correspond to the ratchet gear (135b-1).

[0011] In addition, the pinion part of the present invention is characterized in that it includes a body connected to the rear part of the extension rod part, having an open upper part of an outer periphery and a hollow part formed therein, through which the rear part of the lower rack gear passes, and a pair of pinion supports provided on both sides of the open upper part of the body and rotatably supporting the pinion gear.

[0012] In addition, the upper rack gear of the present invention includes guide grooves formed in the longitudinal direction on both side surfaces, and the pinion support of the pinion portion includes guide protrusions protruding from an upper part of an inner surface and inserted into the guide grooves.

[0013] The pinion part of the present invention may include a bearing part provided in the hollow lower part of the body and supporting a lower surface of the lower rack gear.

[0014] The ratchet plate of the present invention is characterized in that it includes a locking ratchet formed on the front of the upper surface and between the pair of ratchet gears, and the operation knob is provided to penetrate the front of the upper surface and includes a second pawl that penetrates the center of the first pawl and corresponds to the locking ratchet.

[0015] In addition, the insulating rod portion of the present invention includes a rotating pipe that is hollow, is attached to the outer periphery of the operating rod, and has its front portion connected to the rear portion of the holder portion; and a support tube that is hollow, is attached to the outer periphery of the rotating pipe, and has its front portion rotatably connected to the holder portion.The electric handle is characterized by including: a power transmission portion that is attached between the rear portion of the support tube and the front portion of the double pole operating portion, is attached so as to be able to transmit power to the rotating pipe, and through which the rear portion of the operating rod passes; a handle body that is attached to an upper portion of the power transmission portion and has a drive motor; and a rotation prevention member that is attached inside the power transmission portion and prevents rotation of the rotating pipe when the handle body is separated from the power transmission portion.

[0016] In addition, the power transmission unit of the present invention includes a gear housing installed between the rear of the support pipe and the front of the double-pole operating unit, a first bevel gear installed at the front inside of the gear housing and connected to the rear of the rotary pipe, and a second bevel gear (156c) installed at the upper inside of the gear housing, corresponding to the first bevel gear, and having a connecting hole therethrough. The rotation prevention member includes a lower support member installed at the lower inside of the gear housing, and an upper support member (158b) elastically supported upward on the upper part of the lower support member, and having an anti-rotation protrusion at its upper part that is inserted into the connecting hole of the second bevel gear (156c) to prevent rotation of the second bevel gear (156c).

[0017] In order to achieve the above-mentioned object, the present invention provides a double pole for indirect live-line work, which clamps a work object using a hook assembly (177) inserted into a holder part (167), or rotates the holder part (167) using an electric handle (155) connected to the holder part (167) via an insulating rod part (110), thereby rotating the clamped work object. and a double-pole operating part (135) that is provided at the rear of the insulating rod part (110) and is connected to the rear of the operating rod (125) and adjusts the depth to which the hook assembly (177) is inserted into the holder part (167). The double-pole operating part (135) is capable of two-stage movement, moving backward and then forward relative to the stick, and the depth to which the hook assembly (177) is inserted into the holder part (167) is adjusted by the two-stage movement of the double-pole operating part (135). [Effects of the Invention]

[0018] As described above, the electric insulated rotary grip all clamp stick (hereinafter referred to as "clamp stick") with a double-pole operating part for indirect live-line work according to the present invention and the method of operating an indirect live-line work tool using the same have the following advantages: a worker holds the clamp stick and operates the operating part, so that the work object is easily hooked on the hook of the holder part and firmly clamped, thereby enabling safe work; and by configuring the double-pole operating part using a rack and pinion gear, the length of the operating part is minimized, allowing the worker to more easily and safely connect and operate the tip tool using the double-pole operating part. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view of a clamp stick according to a preferred embodiment of the present invention; [Figure 2] 1 is a partial perspective view showing a holder portion and an insulating rod portion of a clamp stick according to a preferred embodiment of the present invention; [Figure 3] 1 is a partial perspective view showing a holder portion and an insulating rod portion of a clamp stick according to a preferred embodiment of the present invention; [Figure 4] 1 is a partial perspective view showing a holder portion and an insulating rod portion of a clamp stick according to a preferred embodiment of the present invention; [Figure 5] 1 is a partially exploded perspective view showing a holder portion and an insulating rod portion of a clamp stick according to a preferred embodiment of the present invention. FIG. [Figure 6] FIG. 2 is an exploded perspective view showing a holder portion of a clamp stick according to a preferred embodiment of the present invention. [Figure 7] FIG. 1 is an exploded perspective view showing a hook assembly of a clamp stick according to a preferred embodiment of the present invention. [Figure 8] FIG. 1 is a partial perspective view showing a double-pole operating portion of a clamp stick according to a preferred embodiment of the present invention. [Figure 9]FIG. 1 is a partially exploded perspective view showing a double-pole operating portion of a clamp stick according to a preferred embodiment of the present invention. [Figure 10] FIG. 1 is a partially exploded perspective view showing a double-pole operating portion of a clamp stick according to a preferred embodiment of the present invention. [Figure 11] 1 is a partial perspective view showing a double-pole operating portion of a clamp stick according to a preferred embodiment of the present invention; FIG. [Figure 12] 10A and 10B are partial projection views showing the operation of the double-pole operating portion of the clamp stick according to a preferred embodiment of the present invention. [Figure 13] 10A and 10B are partial projection views showing the operation of the double-pole operating portion of the clamp stick according to a preferred embodiment of the present invention. [Figure 14] 10A and 10B are partial projection views showing the operation of the double-pole operating portion of the clamp stick according to a preferred embodiment of the present invention. [Figure 15] 1A and 1B are a side projection view and a rear projection view showing a power transmission part of a clamp stick according to a preferred embodiment of the present invention. [Figure 16] 1A and 1B are side and rear projection views showing the operation of an anti-rotation member of a clamp stick according to a preferred embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention relates to an electric insulated rotary grip oar clamp stick having a double pawl operating part for indirect live-line work used in live-line work, and a method for operating an indirect live-line work tool using the same. More specifically, the double pole operating part 135 is configured using a rack and pinion gear so that a worker can use it safely and more conveniently in live-line or uninterruptible power work that does not interrupt the supply of electricity. The double pole operating part 135 configured as described above can operate a holder part 167 and a hook assembly 177 inserted into the holder part 167 to firmly connect a tip tool or a work object (hereinafter, referred to as "tip tool or work object") to the tip of the holder part 167. In particular, the length of the double pole operating part 135 is minimized, so that a worker can easily grip and operate the double pole for indirect live-line work when operating a tip tool, removing a binding wire from a rotary winding / pulling type extra-high voltage distribution line, and removing foreign matter including the coating of an electric wire. This technology relates to an electrically insulated rotary grip oar clamp stick having a pawl operating section and a method for operating an indirect live-line work tool using the same.

[0021] The configuration of the electric insulated rotary grip oar clamp stick with a double pawl operating part for indirect live-line work to achieve the above-mentioned present invention is an electric insulated rotary grip oar clamp stick with a double pawl operating part for indirect live-line work that clamps a work object using a hook assembly 177 inserted into a holder part 167, or rotates the holder part 167 using an electric handle 155 connected to the holder part 167 via an insulating rod part 110 to rotate the clamped work object, and is characterized by including: an operating rod 125 that passes through the hollow of the insulating rod part 110 and has its front part connected to the rear part of the hook assembly 177; and a double pole operating part 135 that is connected to the rear part of the insulating rod part 110 and adjusts the depth to which the hook assembly 177 is inserted into the holder part 167.

[0022] The double-pole operating unit 135 of the present invention includes an extension rod portion 135a provided at the rear of the insulating rod portion 110 and having a hollow, an operation knob 136 provided at the outer periphery of the extension rod portion 135a and movable forward and backward, a lower rack gear 137 provided at the rear of the extension rod portion 135a and having a length in the forward and backward directions, and provided in the hollow of the extension rod portion 135a so as to be connected to the rear of the operating rod 125, and a lower rack gear 137 provided at the rear of the extension rod portion 135a and in the hollow of the operation knob 136, and the rear of the lower rack gear 137 is The operation knob 136 is characterized in that it includes a pinion portion 138 having a hollow through which the pinion gear 138a corresponding to the lower rack gear 137 is provided above the lower rack gear 137, and an upper rack gear 139 having a length in the front-to-rear direction, fixedly provided in the hollow of the operation knob 136, fixedly provided so as to be positioned above the pinion portion 138, corresponding to the pinion gear 138a, and moved in the same direction as the movement direction of the lower rack gear 137 by the pinion gear 138a.

[0023] In addition, the double-pole operating part 135 of the present invention includes a ratchet plate 135b that is fixedly attached to the outer periphery of the extension rod part 135a, fixedly attached to the lower part of the upper rack gear 139, and has a pair of ratchet gears 135b-1 formed on the upper surface in the front and rear directions so as to be located on both sides of the upper rack gear 139, and the operating knob 136 includes a first pawl 136a that is attached to the front of the upper part and corresponds to the ratchet gear 135b-1.

[0024] In addition, the pinion part 138 of the present invention is characterized by including a body 138b connected to the rear part of the extension rod part 135a, having an open upper part of the outer periphery and a hollow space formed therein through which the rear part of the lower rack gear 137 passes, and a pair of pinion supports 138c provided on both sides of the open upper part of the body 138b and rotatably supporting the pinion gear 138a.

[0025] In addition, the upper rack gear 139 of the present invention includes guide grooves 139a formed in the longitudinal direction on both side surfaces, and the pinion support 138c of the pinion part 138 includes a guide protrusion 138c-1 protruding from the upper part of the inner surface and inserted into the guide groove 139a.

[0026] In addition, the pinion part 138 of the present invention is characterized in that it includes a bearing part 138d that is installed in the hollow lower part of the body 138b and supports the lower surface of the lower rack gear 137.

[0027] In addition, the ratchet plate 135b of the present invention is characterized in that it includes a locking ratchet 135b-2 formed on the front of the upper surface and formed between the pair of ratchet gears 135b-1, and the operation knob 136 is provided to penetrate the front of the upper surface, is provided to penetrate the center of the first pawl 136a, and includes a second pawl 136b corresponding to the locking ratchet 135b-2.

[0028] In addition, the insulating rod unit 110 of the present invention includes a rotating pipe 130 that is hollow, is attached to the outer periphery of the operating rod 125, and has a front portion connected to the rear portion of the holder unit 167; and a support pipe 111 that is hollow, is attached to the outer periphery of the rotating pipe 130, and has a front portion to which the holder unit 167 is rotatably connected. The electric handle 155 is characterized by including: a power transmission unit 156 that is attached between the rear portion of the support pipe 111 and the front portion of the double pole operating unit 135 and is capable of transmitting power to the rotating pipe 130, and through which the rear portion of the operating rod 125 passes; a handle body 157 that is attached to an upper portion of the power transmission unit 156 and has a driving motor; and a rotation prevention member 158 that is attached inside the power transmission unit 156 and prevents the rotating pipe 130 from rotating when the handle body 157 is separated from the power transmission unit 156.

[0029] In addition, the power transmission unit 156 of the present invention includes a gear housing 156a disposed between the rear of the support pipe 111 and the front of the double-pole operating unit 135; a first bevel gear 156b disposed at the front of the inside of the gear housing 156a and connected to the rear of the rotary pipe 130; and a second bevel gear 156c disposed at the upper inside of the gear housing 156a, corresponding to the first bevel gear 156b, and having a connecting hole 156c-1 therethrough. The rotation prevention member 158 includes a lower support 158a disposed at the lower inside of the gear housing 156a, and an upper support 158b elastically supported upward on the upper part of the lower support 158a, the upper support 158b having an anti-rotation protrusion 158b-1 at its upper part inserted into the connecting hole 156c-1 of the second bevel gear 156c to prevent rotation of the second bevel gear 156c.

[0030] The indirect live-line work tool operating method using an electric insulated rotary grip oar clamp stick having a double-pole operating part for indirect live-line work to achieve the above-mentioned present invention is characterized by comprising a first preparation step (S10) of preparing the electric insulated rotary grip oar clamp stick for indirect live-line work as described above, a second preparation step (S20) of connecting a tool tip to the hook assembly 177, and an operation execution step (S30) of rotating the holder part 167 by operating the electric handle 155 to rotate the tool tip, thereby winding an electric wire onto the tool tip or removing foreign matter such as film or dust coated on the electric wire.

[0031] The present invention will be specifically described below with reference to FIGS. 1 to 16 showing an embodiment of the present invention.

[0032] First, the electric insulated rotary grip oar clamp stick (hereinafter referred to as "clamp stick") having a double pawl operating part for indirect live-line work of the present invention comprises a holder part 167 provided at the tip, a hook assembly 177 inserted into the holder part 167, an insulating rod part 110 connected to the rear of the holder part 167, a power transmission part 156 provided at the rear of the insulating rod part 110, an electric handle 155 connected to the top of the power transmission part 156, and a handle part 115 connected to the rear of the power transmission part 156.

[0033] The clamp stick of the present invention clamps a work object using the hook assembly 177 inserted into the holder part 167, or rotates the holder part 167 using the electric handle 155 connected to the holder part 167 via the insulating rod part 110, specifically the electric handle 155 connected to the holder part 167 via the insulating rod part 110 and the power transmission part 156, thereby rotating the clamped work object and enabling indirect live-line work to be performed.

[0034] Here, the clamp stick of the present invention is characterized in that the double-pole operating part 135 is provided on the handle part 115, so that the hook assembly 177 can be operated to insert or pull out the hook assembly 177 into the holder part 167. Therefore, by firmly connecting the work object or the tip tool to the hook assembly 177, the worker can easily grasp and operate the tip tool, remove the binding wire from the rotary winding / pulling type extra-high voltage distribution line, and remove foreign matter including the coating of the electric wire.

[0035] When explaining the configuration of the double pole operating part 135 having the features of the present invention below, the configuration of the power transmission part 156 will be described later. It is obvious that even without the configuration of the power transmission part 156, the configuration of the double pole operating part 135 can be organically connected and operated by operating the configuration of the double pole operating part 135. However, since the power transmission part 156 is an essential component for rotating the holder part 167 via the electric handle 155, it is obvious that when the configuration of the power transmission part 156 is not mentioned, the prerequisite that the power transmission part 156 is provided between the insulating rod part 110 and the double pole operating part 135 must be supported.

[0036] Furthermore, it is obvious that the leading end and trailing end referred to in the present invention are used as the same or similar meanings as the front and rear parts, respectively, with only the names being different.

[0037] The clamp stick of the present invention comprises an insulating rod portion 110 that can be held by a user's hand for operation, an operating rod 125 and a rotating pipe 130 disposed inside the insulating rod portion 110, an electric handle 155 disposed at the rear end of the insulating rod portion 110 and connected to the operating rod 125, and a holder portion 167 disposed at the front end of the insulating rod portion 110.

[0038] Here, the insulating rod part 110, the operating rod 125 and the rotating pipe 130 are made of insulating materials that do not conduct electricity, and the clamp stick of the present invention can be used conveniently and safely to perform various indirect live-line work without directly holding the work object, such as an indirect live-line tool installed on a utility pole, with the holder part 167.

[0039] Specifically, the insulating rod portion 110 includes a support pipe 111 having a hollow interior, an operating rod 125 disposed inside the support pipe 111, and a rotating pipe 130 disposed inside the support pipe 111 and outside the operating rod 125. A power transmission portion 156, which will be described in detail later, is connected to the rear end of the support pipe 111, and a handle portion 115, which will be described in detail later, is connected to the rear end of the power transmission portion.

[0040] In other words, the insulating rod portion 110 includes an operating rod 125 that penetrates the hollow and is attached at its front end to the rear end of the hook assembly 177, which will be described in detail later; a rotating pipe 130 that is hollow, is attached to the outer periphery of the operating rod 125, and is attached at its front end to the rear end of the holder portion 167; and a support pipe 111 that is hollow, is attached to the outer periphery of the rotating pipe 130, and is attached at its front end to the holder portion 167 so that it can be rotatably connected to the holder portion 167.

[0041] The support pipe 111 is formed in the form of a hollow pipe to have a space inside to accommodate the operating rod 125, the rotary pipe 130, etc., and a stick holder 120 that rotatably supports the holder part 167 is provided at the tip of the support pipe 111. The stick holder 120 includes an upper holder 121 to which the holder part 167 is rotatably connected, and a lower holder 122 that surrounds the support pipe 111 and the upper holder 121 and fixes the upper holder 121 to the support pipe 111, and the upper holder 121 and the lower holder 122 have a hollow structure so that the rotary pipe 130 can pass through them.

[0042] In addition, a protective skirt (not shown) is attached to the middle part of the support pipe 111, and the protective skirt is arranged to protrude from the outer surface of the support pipe 111 along the periphery of the support pipe 111, so that when the holder part 167 grips the work object, foreign objects falling from the work object cannot reach the worker, and the protective skirt serves to prevent the worker's hands from getting too close to the holder part 167 during live line work.

[0043] Furthermore, the power transmission unit 156, which will be described in detail later, connects the support pipe 111 and the handle unit 115 between the support pipe 111 and the handle unit 115, and has an accommodation space formed therein that can accommodate the first bevel gear 156b, the second bevel gear 156c, and the anti-rotation member 158, which will be described in detail later.

[0044] Here, a connecting boss (not shown) is coupled to the outer side, i.e., the upper part, of the power transmission part 156. The connecting boss protrudes from the outer side, i.e., the upper part, of the power transmission part 156 so that the electric handle 155 can be detachably coupled, and a fastening groove (not shown) for fastening to the electric handle 155 is formed on the connecting boss.

[0045] The handle 115 extends rearward from the rear end of the power transmission unit 156 so that an operator can hold it with their hands, and is connected to the double pole operating unit 135, which will be described in detail later, so that the handle 115 can move forward and backward, i.e., in the longitudinal direction. Although the drawings show the handle 115 connected to the rear of the double pole operating unit 135, which will be described in detail later, the structure of the handle 115 can be modified in various ways.

[0046] In this regard, the actuating rod 125 is disposed inside the rotary pipe 130 disposed in the hollow of the insulating rod part 110. Specifically, the actuating rod 125 is disposed in the hollow provided inside the rotary pipe 130 so as to be movable linearly, i.e., movable forward and backward.

[0047] Here, the operating rod 125 includes a main rod 126, a rear rod 127 connected to the rear end of the main rod 126, a connector (not shown) connected to the rear end of the rear rod 127 and to which the tip of a lower rack gear 137, which will be described in detail later, is connected, and a front rod 128 connected to the tip of the main rod 126.

[0048] The rear rod 127 is rotatably connected to the connector, and the front rod 128 is rotatably connected to the holder part 167, and the rear rod 127 and the front rod 128 can be screwed together with the main rod 126. By forming the operating rod 125 into an assembly structure consisting of three parts in this way, it is possible to obtain an effect that the operating rod 125 can be easily assembled with the holder part 167 and the double pole operating part 135.

[0049] In addition, a tip connecting member 129 for connecting with the holder part 167 is connected to the tip rod 128, and such tip rod 128 can transmit the linear movement force of the double pole operating part 135 operated by the operator to the holder part 167, specifically the hook assembly 177.

[0050] In this regard, the rotary pipe 130 is rotatably disposed on the support pipe 111 and is coupled to a holder portion 167 .

[0051] Specifically, the rotary pipe 130 comprises a rotary pipe main body 131 and a rotary pipe sub-body 132 connected to the tip of the rotary pipe main body 131. A hollow is formed inside the rotary pipe 130 to accommodate the operating rod 125. The tip of the rotary pipe sub-body 132 is provided with a rotary pipe coupling part 134 that is connected to a holder part 167. The rotary pipe coupling part 134 can transmit the rotational force of the electric handle 155 to the holder part 167.

[0052] In relation to the above, the electric handle 155 is characterized in that it includes a power transmission part 156 that is provided between the support pipe 111 and the double pole operating part 135, which will be described in detail later, i.e., between the rear part of the support pipe 111 and the front part of the double pole operating part 135, which will be described in detail later, and is capable of transmitting power to the rotating pipe 130 and through which the rear part of the operating rod 125 passes, a handle body 157 that is provided on the upper part of the power transmission part 156 and has a drive motor (not shown), and a rotation prevention member 158 that is provided inside the power transmission part 156 and prevents the rotating pipe 130 from rotating when the handle body 157 is separated from the power transmission part 156.

[0053] The electric handle 155 is connected to the rotary pipe 130 via the power transmission unit 156 so that power can be transmitted thereto. When operated by an operator, the driving force of the drive motor is transmitted to the rotary pipe 130 via the power transmission unit 156, causing the rotary pipe 130 to rotate, and thus the holder unit 167 connected to the tip of the rotary pipe 130 to rotate.

[0054] Specifically, the power transmission unit 156 includes a gear housing 156a provided between the support pipe 111 and the double pole operating unit 135, i.e., between the rear of the support pipe 111 and the front of the double pole operating unit 135, a first bevel gear 156b provided at the front inside of the gear housing 156a and connected to the rear of the rotary pipe 130, and a second bevel gear 156c provided at the upper inside of the gear housing 156a and meshing with the first bevel gear 156b, and having a connecting hole 156c-1 through which a handle shaft (not shown) of the electric handle 155 is detachably connected.

[0055] Although the coupling hole 156c-1 is shown as a simple circular hole in the drawings, the cross-sectional shape is non-circular, i.e., formed in a shape corresponding to the handle shaft of the polygonal electric handle 155, and the second bevel gear 156c is exposed outside, i.e., upward, of the gear housing 156a.

[0056] Therefore, when the drive motor of the electric handle 155 is operated, the second bevel gear 156c rotates, and at the same time, the first bevel gear 156b rotates together with the second bevel gear 156c, causing the rotating pipe 130 to rotate and the holder part 167 to rotate.

[0057] Here, the first bevel gear 156b and the second bevel gear 156c may be rotatably supported via bearings (not shown) disposed in the gear housing 156a, respectively, and an operator may detach the handle shaft of the electric handle 155 from the coupling hole 156c-1 as needed, and may manually rotate the second bevel gear 156c by coupling a manual wrench to the coupling hole 156c-1 from which the handle shaft has been separated.

[0058] Furthermore, although the drawings show the handle shaft and rotary pipe 130 disposed approximately perpendicularly and the power transmission unit 156 including two bevel gears (first bevel gear 156b and second bevel gear 156c) disposed approximately perpendicularly, it should be apparent that the structure of the power transmission unit 156 can be modified in various ways. That is, the power transmission unit 156 can have a structure including a gear train other than bevel gears, or a structure including other power transmission members other than gears that can transmit the rotational force of the electric handle 155 to the rotary pipe 130. When the power transmission unit 156 includes a rotation prevention member 158, which will be described in detail below, it is preferable that the power transmission unit 156 be configured with a bevel gear structure.

[0059] In this regard, the electric handle 155 is disposed on the handle portion 115 side of the insulating rod portion 110 so as to provide a rotational force to the rotary pipe 130 via the power transmission portion 156. The electric handle 155 includes a handle body 157 detachably coupled to the insulating rod portion 110, a handle shaft connected to the power transmission portion 156, a driving motor that generates a driving force for rotating the handle shaft, and a switch (not shown) that is operated by an operator.

[0060] The handle shaft protrudes outward, i.e., downward, from one side of the handle body 157, i.e., from the lower part, and as described above, its cross section is non-circular and can be detachably coupled to the coupling hole 156c-1 of the second bevel gear 156c. The drive motor can have various structures capable of generating rotational force such as a motor, and is operated by operating a switch.

[0061] In addition, a handle coupler (not shown) that can be detachably connected to the connecting boss of the insulating rod part 110 is provided on one side, i.e., the lower part, of the handle body, and the handle coupler includes a coupler body (not shown) that can be connected to the connecting boss, and a clamp unit (not shown) that is connected to the coupler body so that the coupler body can be fixed to the connecting boss.

[0062] The coupler body has a coupler groove (not shown) on the inside thereof that can accommodate a connecting boss, through which the handle shaft protrudes to the outside of the coupler body, and a coupler body groove (not shown) on the outer surface thereof for installing a clamp unit, and the coupler groove and the coupler body groove are connected via a coupler body through-hole (not shown).

[0063] The clamp unit includes a button (not shown) that is coupled to a coupler body groove, a stopper member (not shown) that is disposed inside the button, a stopper member spring (not shown) that is disposed between the button and the stopper member, and a plurality of pressing balls (not shown) that can operate the stopper member in conjunction with the movement of the button.

[0064] The button is coupled to a coupler body groove so as to be exposed to the outside of the coupler body for operator operation, and a button groove (not shown) is formed inside the button, and a stopper member and a stopper member spring are disposed in the button groove.

[0065] A button inclined surface (not shown) that comes into contact with the plurality of pressing balls is provided at one end of the button, and the button inclined surface is obliquely provided in a direction that allows the plurality of pressing balls to be pressed toward the stopper member.

[0066] The button is elastically supported by the elastic force of the stopper member spring and can protrude from the outer surface of the coupler body. When an operator presses the button, the button compresses the stopper member spring and moves toward the coupler groove.

[0067] The stopper member is covered by the button so as to be able to move linearly inside the button, and a portion of the stopper member can enter the coupler groove through the coupler body through-hole of the coupler body. When the handle coupler is coupled to the connecting boss of the insulating rod portion 110, the end of the stopper member that enters the coupler groove can be inserted into the fastening groove of the connecting boss.

[0068] The outer surface of the stopper member is provided with a stopper member inclined surface (not shown) that comes into contact with the plurality of pressing balls, and when the plurality of pressing balls are pressed against the inclined surface of the stopper member, the stopper member moves in a direction to disengage from the coupler groove.

[0069] The stopper member spring is disposed between the button and the stopper member and applies an elastic force to the stopper member in a direction that causes the stopper member to enter the coupler groove. Therefore, when no external force is applied, the elastic force of the stopper member spring allows the stopper member to maintain its distal end inserted into the coupler groove.

[0070] Here, a plurality of pressure balls are arranged around the stopper member, and each pressure ball is disposed in the coupler body groove so that one side of the pressure ball contacts the inclined surface of the button and the other side of the pressure ball contacts the inclined surface of the stopper member, and can roll. When the button is pressed by an operator, the plurality of pressure balls are pressed by the inclined surface of the button and move toward the stopper member, thereby pressing the stopper member in a direction retracting from the coupler groove.

[0071] This operation of the handle coupler allows the handle body 157 to be stably fixed to the insulating rod portion 110 and to be separated from the insulating rod portion 110 as needed. That is, when the coupler body is positioned to surround the connecting boss, the end of the stopper member enters the coupler groove and is inserted into the fastening groove of the connecting boss. Here, the stopper member spring presses the stopper member toward the coupler groove, thereby maintaining the stopper member inserted into the fastening groove and allowing the handle coupler to be stably connected to the insulating rod portion 110. In this state, the handle shaft is connected to the connecting hole 156c-1 of the second bevel gear 156c, and when the operator operates the switch, the driving force of the drive motor can be transmitted to the second bevel gear 156c via the handle shaft.

[0072] On the other hand, when the operator presses the button, the multiple pressure balls move toward the stopper member. At this point, the multiple pressure balls press the stopper member in a direction that causes it to retreat from the coupler groove, causing the stopper member to move while compressing the stopper member spring, and disengage from the fastening groove of the connecting boss. At this point, the handle coupler is released from the insulating rod part 110, allowing the electric handle 155 to be separated from the insulating rod part 110.

[0073] Although the drawings show a plurality of fastening grooves formed in the connecting boss and a plurality of clamp units provided on the handle coupler, the number of clamp units can be varied.

[0074] In addition, the structure of the handle coupler is not limited to that shown in the figure, and can be changed to various other structures that can be detachably connected to the insulating rod portion 110. Since this is the same structure as that described in Korean Patent No. 2235044 applied for and registered by the present applicant, the drawing reference numbers for the names are omitted.

[0075] Meanwhile, the aforementioned anti-rotation member 158 is provided inside the power transmission part 156, and includes the anti-rotation member 158 that prevents the rotation of the rotating pipe 130, i.e., the rotation of the second bevel gear 156c, when the handle body 157 is separated from the power transmission part 156, i.e., when the electric handle 155 is separated from the insulating rod part 110.

[0076] Specifically, the anti-rotation member 158 includes a lower support 158a provided at the lower inside portion of the gear housing 156a, and an upper support 158b provided at the upper portion of the lower support 158a so as to be elastically supported upward, and having an anti-rotation protrusion 158b-1 at its upper portion inserted into the lower portion of the connecting hole 156c-1 of the second bevel gear 156c to prevent rotation of the second bevel gear 156c.

[0077] Here, the anti-rotation protrusion 158b-1 has a shape corresponding to the coupling hole 156c-1, i.e., a non-circular cross-sectional shape, and when inserted into the coupling hole 156c-1, it prevents the second bevel gear 156c from rotating.

[0078] In addition, a plurality of elastic springs (not shown) are provided between the lower support member 158a and the upper support member 158b to elastically support the upper support member 158b upward. When the handle shaft of the electric handle 155 is inserted into the coupling hole 156c-1, the upper support member 158b moves downward and the anti-rotation protrusion 158b-1 is separated from the coupling hole 156c-1, thereby allowing the second bevel gear 156c to rotate. When the handle shaft of the electric handle 155 is separated from the coupling hole 156c-1, the anti-rotation protrusion 158b-1 is inserted into the coupling hole 156c-1, thereby automatically preventing the second bevel gear 156c from rotating and preventing the rotating pipe 130 from rotating freely.

[0079] That is, when the electric handle 155 is not required during work, the rotation prevention member 158 automatically prevents the rotation of the rotary pipe 130 when the electric handle 155 is separated without the need to insert a separate member for preventing rotation into the coupling hole 156c-1, thereby achieving the effect of further improving work efficiency.

[0080] In this regard, the holder part 167 is provided at the tip of the insulating rod part 110 so as to be able to clamp the work object. Specifically, the holder part 167 includes a rotary holder 168 supported by the stick holder 120, and a hook assembly 177 movably coupled to the rotary holder 168.

[0081] The rotary holder 168 is connected to the rotary pipe 130 so as to rotate together with the rotary pipe 130, and is rotatably supported by the stick holder 120. Specifically, the rotary holder 168 includes a holder body 169 that supports a hook assembly 177, and a holder connecting part 174 that is disposed at the rear end of the holder body 169 and connected to the rotary pipe 130.

[0082] A holder guide groove 170 to which a hook assembly 177 is movably coupled is provided inside the holder body 169. Specifically, the holder guide groove 170 includes a central guide groove 171 disposed in the center of the holder body 169 and a plurality of extension guide grooves 172 extending radially from the central guide groove 171 on the holder body 169. A through hole 173 connected to the holder guide groove 170 is provided at the rear end of the holder body 169 so that the actuation rod 125 can pass through.

[0083] The holder coupling part 174 is coupled to the rear end of the holder body 169 to connect the holder body 169 and the rotating pipe 130. The holder coupling part 174 is provided with a holder coupling hole 175 that is coupled to the through hole 173 of the holder body 169. The rotating pipe coupling part 134 of the rotating pipe 130 is inserted into the holder coupling hole 175. The holder coupling hole 175 is formed in a shape that corresponds to the rotating pipe coupling part 134, which has a non-circular cross section. By inserting the rotating pipe coupling part 134 into the holder coupling hole 175, the rotating pipe 130 can be coupled to the rotating holder 168 so that it cannot rotate relative to the rotating holder 168, and the rotational force of the rotating pipe 130 can be transmitted to the rotating holder 168.

[0084] In the drawings, the rotating pipe 130 and the rotating holder 168 are shown to be connected by inserting the rotating pipe coupling part 134, which has a non-circular prismatic cross section, into the holder coupling hole 175 of the rotating holder 168, but the shapes of the rotating pipe coupling part 134 and the holder coupling hole 175 are not limited to those shown in the drawings. In addition, the coupling structure of the rotating pipe 130 and the rotating holder 168 can be modified in various ways.

[0085] In addition, the rotary holder 168 may have a structure including a substantially cylindrical holder body 169 and a holder coupling part 174 coupled to the rear end of the holder body 169, as shown in the figure, but may also have various other structures that can couple to the rotary pipe 130 while movably supporting the hook assembly 177.

[0086] The hook assembly 177 includes a slider 178 slidably disposed in the holder guide groove 170 of the rotary holder 168, and a hook 188 coupled to the slider 178 so as to be able to clamp a work object or various work tools (tip tools).

[0087] The slider 178 includes a slider body 179 inserted into the central guide groove 171 of the holder guide groove 170, and a plurality of slider wings 186 extending outward from the slider body 179 so as to be inserted into each of the plurality of extended guide grooves 172. By inserting the slider body 179 into the central guide groove 171 and the plurality of slider wings 186 into the plurality of extended guide grooves 172, the slider body 179 can move relative to the rotary holder 168 but can also be coupled so as not to rotate relative to the rotary holder 168.

[0088] The slider body 179 includes a slider coupling hole 180, a slider middle groove 181, slider side grooves 182, a slider central groove 183, and a slider pin hole 184. The slider coupling hole 180 is disposed at the rear end of the slider body 179 to allow the actuating rod 125 to be inserted therein. The slider middle groove 181 is disposed at the middle of the slider body 179 to be connected to the slider coupling hole 180. At least one side of the slider middle groove 181 is exposed to the outside, and the end of the front rod 128 and the front coupling member 129 are disposed in the slider middle groove 181. The slider side groove 182 is disposed at the side of the slider body 179 to allow the end of the hook 188 to be inserted therein. The slider central groove 183 is disposed at the center of the slider body 179 parallel to the movement direction of the slider body 179 and is exposed to the outside from the front end of the slider body 179. The slider pin hole 184 is formed in the side of the slider body 179 in a direction perpendicular to the slider central groove 183 and is connected to the slider side groove 182 .

[0089] The hook 188 is bent to clamp an object and is rotatably disposed on the slider 178. One end of the hook 188 is provided with a hook pin hole 189 and a hook protrusion 190 corresponding to the slider pin hole 184 of the slider 178. The hook 188 is rotatably connected to the slider 178 via a pivot pin 191 connected to the slider 178. That is, the pivot pin 191 connected to the slider pin hole 184 of the slider 178 is inserted into the hook pin hole 189 of the hook 188, allowing the hook 188 to rotate around the pivot pin 191 as a rotation center axis. The hook protrusion 190 is disposed in the slider central groove 183 of the slider 178.

[0090] When the slider 178 moves toward the stick 100, the hook 188 rotates in contact with the rotary holder 168, thereby clamping the workpiece. When the hook 188 rotates in contact with the rotary holder 168, the hook 188 receives the elastic force of the spring 192. The spring 192 is disposed in the slider center groove 183 of the slider 178 so as to contact the hook protrusion 190 of the hook 188. The spring 192 is compressed when the hook 188 rotates in contact with the rotary holder 168, and then applies an elastic force to the hook 188 when the hook 188 disengages from the holder guide groove 170, thereby restoring the hook 188 to its original state.

[0091] The hook assembly 177 is coupled to a tip rod 128 of the actuation rod 125 so as to be movable by the actuation rod 125. Specifically, the end of the tip rod 128 reaches a slider intermediate groove 181 through a slider coupling hole 180, and a tip coupling member 129 is coupled to the end of the tip rod 128 in the slider intermediate groove 181, thereby coupling the tip rod 128 and the hook assembly 177 to each other. The tip rod 128 and the hook assembly 177 can rotate relative to each other. A bearing 193 coupled to the tip coupling member 129 is disposed in the slider intermediate groove 181 between the inner surface of the slider 178 and the tip coupling member 129 so that the tip rod 128 and the hook assembly 177 can rotate smoothly relative to each other. Another bearing 194 is further connected to the tip connecting member 129, and this bearing 194 contacts the outer surface of the slider 178, thereby allowing the tip rod 128 and the hook assembly 177 to rotate smoothly relative to each other.

[0092] In addition, the indirect hot line electric insulating rotary grip oar clamp stick 100 according to one embodiment of the present invention includes bearings 195, 196 disposed inside the stick holder 120. These bearings 195, 196 rotatably support the rotary pipe sub-body 132 of the rotary pipe 130 so that the rotary pipe sub-body 132 can smoothly rotate relative to the stick holder 120.

[0093] In relation to the above, the double pole operating part 135 is provided at the rear of the insulating rod part 110, i.e., at the rear of the support pipe body 111, and is connected to the rear of the operating rod 125 to move the operating rod 125 forward and backward, and is characterized in that by moving the operating rod 125 forward and backward, the depth to which the hook assembly 177 is inserted into the holder part 167 can be adjusted.

[0094] Specifically, the double-pole operating part 135 includes an extension rod part 135a having a hollow, which is connected to the rear part of the insulating rod part 110, i.e., the rear part of the support pipe body 111; an operation knob 136 having a hollow and attached to the outer periphery of the extension rod part 135a so as to be movable forward and backward; a lower rack gear 137 having a length in the forward and backward directions, i.e., a length in the longitudinal direction of the extension rod part 135a, which is attached to the hollow of the extension rod part 135a and connected to the rear part of the operating rod 125, and which has sawtooth formed on its upper surface; and a lower rack gear 137 attached to the rear part of the extension rod part 135a, which is attached to the hollow of the operation knob 136, and which has a length in the forward and backward directions. The pinion portion 138 has a hollow through which the rear portion of the pinion gear 137 passes, and is provided with a pinion gear 138a at the top of the lower rack gear 137, the pinion gear 138a having a lower portion that meshes with the lower rack gear 137 in correspondence with the lower rack gear 137; and an upper rack gear 139 having a length in the front-to-rear direction, i.e., in the longitudinal direction of the extension rod portion 135a, fixedly provided in the hollow of the operation knob 136, fixedly provided so as to be positioned above the pinion portion 138, the lower portion that meshes with the upper portion of the pinion gear 138a in correspondence with the pinion gear 138a, and moved in the same direction as the moving direction of the lower rack gear 137 by the pinion gear 138a.

[0095] Furthermore, when the power transmission part 156 is not provided at the rear of the insulating rod part 110, i.e., the support pipe 111, the extension rod part 135a is provided at the rear of the support pipe 111, and when the power transmission part 156 is provided at the rear of the support pipe 111, the extension rod part 135a is provided at the rear of the power transmission part 156.

[0096] Here, the power transmission part 156 includes a through-hole (not shown) on the rear surface through which the rear part of the operating rod 125, i.e., the rear end rod 127 and the connector, can be inserted, and a connecting member (not shown) connected to the rear part to enable the extension rod part 135a to be smoothly connected, and the connecting member is hollow so that the rear part of the operating rod 125, i.e., the rear end rod 127 and the connector can be inserted.

[0097] That is, the extension rod portion 135a is connected by screwing or the like at its front portion to the rear portion of the connecting member which is connected to the rear portion of the power transmission portion 156, and the lower rack gear 137 is provided in the hollow of the extension rod portion 135a, and its front portion is fixedly provided at the rear portion of the operating rod 125, i.e., the rear portion of the connector.

[0098] The operation knob 136 is hollow and is mounted on the outer periphery of the extension rod portion 135a so as to be movable back and forth, and is also mounted on the outer periphery of the handle portion 115, the front of which is connected to the rear of the pinion portion 138 so as to be movable back and forth. More specifically, the rear of the operation knob 136 is supported by the pinion portion 138, and the front of the operation knob 136 is supported by a first pawl 136a and a second pawl 136b, which will be described in detail later, and is mounted on the outer periphery of the extension rod portion 135a and the handle portion 115 so as to be movable back and forth.

[0099] Here, the operation knob 136 has a gear protrusion (not shown) in which the upper rack gear 139 is hollow and extends upward so as to be installed above the pinion portion 138 and the ratchet plate 135b, which will be described in detail later, and an installation space (not shown) is formed inside.

[0100] The lower rack gear 137 is installed in the hollow of the extension rod portion 135a, with its front portion fixedly connected to the rear portion of a connector connected to the rear portion of the operating rod 125, i.e., the rear end rod 127, and has a plurality of sawtooth teeth on its upper surface that correspond to and mesh with the pinion gear 138a of the pinion portion 138.

[0101] The pinion portion 138 is connected to the rear of the extension rod portion 135a by being connected at its front end by screwing or the like, and the rear end of the lower rack gear 137 is inserted through the hollow, and the pinion gear 138a is rotatably mounted and positioned above the lower rack gear 137, and the pinion gear 138a meshes with the lower rack gear 137.

[0102] Specifically, the pinion unit 138 includes a body 138b whose front portion is connected to the rear portion of the extension rod 135a by screwing or the like, whose upper outer periphery is open and hollow, and through which the rear portion of the lower rack gear 137 passes, and a pair of pinion supports 138c installed on both sides of the open upper portion of the body 138b and rotatably supporting the pinion gear 138a. The lower rack gear 137 is located between the pair of pinion supports 138c and moves smoothly back and forth. The front portion of the handle unit 115 is connected to the rear portion of the body 138b by screwing or the like.

[0103] In addition, the pinion part 138 includes a bearing part 138d that is installed in the hollow lower part of the body 138b to support the lower surface of the lower rack gear 137 and enable smooth forward and backward movement of the lower rack gear 137. Specifically, the bearing part 138d includes support parts (not shown) that are fixedly installed on both sides of the hollow lower part of the body 138b, and at least one bearing (not shown) that is installed in the upper inside part of the support parts to support the lower surface of the lower rack gear 137, so that when the lower rack gear 137 moves forward and backward, the lower rack gear 137 can move smoothly while being supported.

[0104] In relation to the above, the upper rack gear 139 has a length formed in the front-to-rear direction and is fixed to the hollow of the operation knob 136, i.e., the gear protrusion, so that it moves together when the operator moves the operation knob 136 back and forth, and has a plurality of sawtooth teeth formed on its underside to correspond to and mesh with the pinion gear 138a.

[0105] Here, the upper rack gear 139 moves in the same direction as the lower rack gear 137 due to the pinion gear 138a. Therefore, since the pinion gear 138a is configured with an even number rather than an odd number, when the upper rack gear 139 or the lower rack gear 137 moves forward or backward, the lower rack gear 137 or the upper rack gear 139 can move in the same direction, i.e., forward or backward.

[0106] In addition, the upper rack gear 139 includes guide grooves 139a formed in the longitudinal direction on both side surfaces, and the pinion support 138c of the pinion part 138 includes a guide protrusion 138c-1 that protrudes from the upper part of the inner surface and is inserted into the guide grooves 139a.

[0107] The double-pole operating unit 135 allows the upper rack gear 139 to move forward and backward more stably by stably moving forward and backward along the guide groove 139a while the guide protrusion 138c-1 is fixed, thereby allowing the pinion gear 138a to rotate more stably and the lower rack gear 137 to move forward and backward more stably.

[0108] That is, when an operator wishes to couple a work object to the hook assembly 177 and securely fix it, the operator moves the operation knob 136 forward to move the upper rack gear 139 forward, and the lower rack gear 137 moves forward by the pinion gear 138a, causing the hook assembly 177 to protrude forward of the holder part 167. After the operator couples the work object to the hook assembly 177, the operator moves the operation knob 136 backward to move the upper rack gear 139 backward, and the lower rack gear 137 moves backward by the pinion gear 138a, thereby firmly fixing the work object to the hook assembly 177.

[0109] Here, the double-pole operating part 135 is fixedly attached to the outer periphery of the extension rod part 135a, and includes a ratchet plate 135b that is fixedly attached to the lower part of the upper rack gear 139 and has a pair of ratchet gears 135b-1 formed on the upper surface at the front and rear so as to be located on both sides of the upper rack gear 139, and the operating knob 136 includes a first pawl 136a that is attached to the front of the upper part and corresponds to the ratchet gear 135b-1.

[0110] In the drawings, the ratchet plate 135b is shown as being fixedly attached at its front to the outer periphery of the connecting member connected to the rear of the power transmission part 156, rather than to the extension rod part 135a, and is attached in close contact with the outer periphery of the connecting member and the extension rod part 135a, but it does not matter if it is fixedly attached to the outer periphery of the extension rod part 135a.

[0111] The first pawl 136a is installed through the upper front side of the operation knob 136 and is rotatably hinged by a hinge shaft, with its rear elastically supported upward, and its front lower end engages or disengages with a pair of ratchet gears 135b-1 formed on the upper surface of the ratchet plate 135b. The operation knob 136 includes a first spring (not shown) for elastically supporting the rear of the first pawl 136a upward, with its lower portion supported by the upper surface of the operation knob 136 and its upper portion in close contact with the lower surface of the rear of the first pawl 136a, elastically supporting the rear of the first pawl 136a upward.

[0112] That is, when an operator moves the operation knob 136 backward, the first pawl 136a allows the operation knob 136 to move smoothly backward, but when an operator moves the operation knob 136 forward, the front lower end of the first pawl 136a engages with the ratchet gear 135b-1, thereby restricting the operation knob 136 from moving forward, thereby maintaining a state in which the work object is firmly connected to the hook assembly 177.

[0113] Furthermore, the ratchet plate 135b has a curved lower surface that corresponds to the outer periphery of the connecting member and the outer periphery of the extension rod portion 135a, thereby maintaining a stable installation state and maintaining a state in which the first pawl 136a and the ratchet gear 135b-1 are firmly engaged with each other.

[0114] In addition, the ratchet plate 135b includes a locking ratchet 135b-2 formed on the front of the upper surface and positioned between the pair of ratchet gears 135b-1, and the operation knob 136 is provided to penetrate the front of the upper surface and includes a second pawl 136b that is provided to penetrate the center of the first pawl 136a and corresponds to the locking ratchet 135b-2.

[0115] The second pawl 136b is installed through the upper front side of the operation knob 136 and is rotatably hinged by a hinge shaft, with its rear portion elastically supported upward, and its front lower end closely contacts the upper surface of the ratchet plate 135b and engages with the locking ratchet 135b-2 to be locked or unlocked. Here, the operation knob 136 includes a second spring (not shown) for elastically supporting the rear portion of the second pawl 136b upward, and the lower portion of the second spring is supported by the upper surface of the operation knob 136 and its upper portion closely contacts the lower surface of the rear of the second pawl 136b, thereby elastically supporting the rear portion of the second pawl 136b upward.

[0116] In addition, as described above, the second pawl 136b is hingedly connected by penetrating the upper front side of the operation knob 136, but as shown in the drawing, it is hingedly connected to the hinge shaft by penetrating the front part of the first pawl 136a so as to be engaged with or released from the engaging ratchet 135b-2 protruding to be positioned between the pair of ratchet gears 135b-1.

[0117] That is, the first pawl 136a and the second pawl 136b are hingedly connected to the operation knob 136 via the same hinge shaft, and the first spring and the second spring can be installed in a position where they do not overlap, as the rear length of the second pawl 136b is relatively smaller than the rear length of the first pawl 136a, so that the rear portions of the first pawl 136a and the second pawl 136b can be smoothly elastically supported upward.

[0118] To further explain, when an operator connects and fixes a work object or a tool tip to the hook assembly 177, the operator can firmly fix the work object or the tool tip by simply moving the operation knob 136 backward. When the operator presses the rear of the first pawl 136a to release the engagement between the first pawl 136a and the ratchet gear 135b-1 and then moves the operation knob 136 forward, the second pawl 136b engages with the locking ratchet 135b-2, allowing for two-stage movement. This allows the operator to move the hook assembly 177 to a stable position more easily and conveniently, thereby more safely holding the work object or the tool tip.

[0119] After the work is completed, the worker can separate the work object or the tool tip from the hook assembly 177 by pressing the rear of the second pawl 136b to release the engagement between the second pawl 136b and the locking ratchet 135b-2, and then moving the operation knob 136 forward to project the hook assembly 177 forward of the holder part 167, thereby more safely and easily separating the work object or the tool tip from the hook assembly 177.

[0120] In relation to the above, the indirect live-line work tool operating method using the electric insulated rotary grip all clamp stick having the double pawl operating part for indirect live-line work of the present invention is a method of clamping a work object using a hook assembly 177 inserted into a holder part 167, or rotating the holder part 167 using an electric handle 155 connected to the holder part 167 via an insulating rod part 110 to rotate the clamped work object. and a double-pole operating part 135 that is provided at the rear of the insulating rod part 110 and is connected to the rear of the operating rod 125, and that adjusts the depth to which the hook assembly 177 is inserted into the holder part 167. The double-pole operating part 135 is moved rearward by pulling only the operating knob 136 without pressing the rear parts of the first and second poles 136a and 136b against the stick, and then The two-stage movement operation is performed by a one-stage movement in which the rear of the first pole 136a is pressed to move the operation knob 136 forward, and the operation knob 136 is moved forward only until the front lower end of the second pole 136b engages the locking ratchet 135b-2 and the hook 188 does not open; and a two-stage movement in which the rear of the second pole 136b is pressed to move the operation knob 136 forward after the one-stage movement, and the hook 188 opens. The depth to which the hook assembly 177 is inserted into the holder part 167 can be adjusted by the two-stage movement operation of the double pole operation part 135.

[0121] That is, the indirect live-line work tool operating method using the electric insulated rotary grip oar clamp stick with the double-pole operating part for indirect live-line work of the present invention can be any method for operation by organically connecting all the components described above, but this will not be described separately in detail because the operating method was explained when explaining the components.

[0122] Furthermore, the indirect live-line construction method using the electric rotating grip oar clamp stick having a double-pole operating part for indirect live-line work of the present invention includes a first preparation step (S10) of preparing the electric insulated rotating grip oar clamp stick for indirect live-line work described above, a second preparation step (S20) of connecting the tip tool or a work object required for indirect live-line work to the hook assembly 177, a work execution step (S30) of operating the electric handle 155 to rotate the holder part 167 and rotate the clamped work object, and a disassembly step (S40) of separating the tip tool or the work object required for indirect live-line work from the hook assembly 177 after the work is completed.

[0123] Here, the second preparation step (S20) includes a retreating step (S22) of moving the operation knob 136 backward and fixing it after hanging the work object or tip tool required for indirect live wiring on the hook assembly 177, i.e., the hook 188, and a fixing step (S24) of moving the operation knob 136 forward while pressing the rear of the first pawl 136a until the second pawl 136b engages with the locking ratchet 135b-2.

[0124] In other words, the second preparation step (S20) has the effect of enabling the work object or the tool tip to be easily coupled and fixed to the hook assembly 177 by simply moving the operation knob 136 backward and then forward.

[0125] In addition, the indirect live-line construction method using the electric rotary grip all-clamp stick for indirect live-line work of the present invention includes a disassembly step (S40) of separating the tip tool or the work object required for indirect live-line work from the hook assembly 177 after the work execution step (S30).

[0126] In the dismantling step (S40), the operation knob 136 is moved forward while pressing the rear of the second pawl 136b, thereby separating and dismantling the work object or the tip tool required for indirect live wiring from the hook assembly 177, i.e., the hook 188. This is done by moving the operation knob 136 forward to cause the hook assembly 177 to protrude from the holder part 167, and separating the work object or the tip tool required for indirect live wiring from the hook 188, thereby completing the work.

[0127] Although the present invention has been described above with reference to preferred embodiments, it is not limited to the above embodiments, and various modifications can be made by a person having ordinary skill in the art to which the present invention pertains without departing from the spirit of the present invention. [Explanation of symbols]

[0128] 110 Insulating rod part 111 Support tube 115 Handle 120 Stick Holder 121 Upper Holder 122 Lower Holder 125 operating rod 126 Main Rod 127 Rear end rod 128 Tip rod 129 Connecting members 130 Rotating Pipe 131 Rotating pipe main body 132 Rotating pipe subbody 134 Rotating Pipe Joint 135 Double pole operating unit 135a Extension rod part 135b Ratchet Plate 135b-1 Ratchet Gear 135b-2 Locking ratchet 136 Operation knob 136a First Pole 136b Second Pawl 137 Lower rack gear 138 Pinion 138a Pinion Gear 138b Torso 138c pinion support 138c-1 Guide protrusion 138d Bearing part 139 Upper rack gear 139a Guide groove 155 Electric Handle 156 Power transmission section 156a Gear housing 156b 1st bevel gear 156c 2nd bevel gear 156c-1 Bonding Hole 157 Handle body 158 Anti-rotation member 158a Lower support 158b Upper support 158b-1 Anti-rotation protrusion 167 Holder part 168 Rotating Holder 169 Holder Body 170 Holder guide groove 171 Central guide groove 172 Extension guide groove 174 Holder joint 175 Holder connection hole 177 Hook assembly 178 Slider 179 Slider Body 180 Slider connection hole 181 Slider intermediate groove 182 Slider side groove 183 Slider central groove 184 Slider pin hole 186 Slider Wing 188 Hook 189 Hook pin hole 190 Hook protrusion 191 pivot pin 192 Spring 193, 194, 195, 196 Bearings

Claims

1. An electrically insulated rotary grip oar clamp stick having a double-pole operating part for indirect live-line work, which clamps a work object using a hook assembly (177) inserted into a holder part (167), or rotates the holder part (167) using an electrically operated handle (155) connected to the holder part (167) via an insulating rod part (110) to rotate the clamped work object, an operating rod (125) that is provided through the hollow of the insulating rod portion (110) and has a front portion connected to a rear portion of the hook assembly (177); a double pole operating part (135) provided at the rear of the insulating rod part (110) and connected to the rear of the operating rod (125), for adjusting the depth to which the hook assembly (177) is inserted into the holder part (167); The double pole operating unit (135) an extension rod portion (135a) provided at the rear of the insulating rod portion (110) and having a hollow; an operation knob (136) formed with a hollow and provided on the outer periphery of the extension rod portion (135a) so as to be movable forward and backward; a lower rack gear (137) having a length in the front-rear direction, provided in the hollow of the extension rod portion (135a), and connected to the rear portion of the operating rod (125); a pinion portion (138) provided at the rear of the extension rod portion (135a), provided in a hollow of the operation knob (136), having a hollow formed so that the rear portion of the lower rack gear (137) passes through, and having a pinion gear (138a) corresponding to the lower rack gear (137) at an upper portion of the lower rack gear (137); an upper rack gear (139) having a length in the front-to-rear direction, fixedly provided in the hollow of the operation knob (136), fixedly provided to be positioned above the pinion portion (138), corresponding to the pinion gear (138a), and moved by the pinion gear (138a) in the same direction as the moving direction of the lower rack gear (137); The double pole operating unit (135) a ratchet plate (135b) fixedly attached to the outer periphery of the extension rod portion (135a), fixedly attached to a lower portion of the upper rack gear (139), and having a pair of ratchet gears (135b-1) formed on the upper surface thereof at the front and rear ends thereof so as to be located on both sides of the upper rack gear (139); The operation knob (136) The first pawl 136a is provided at the front of the upper portion thereof so as to penetrate therethrough and correspond to the ratchet gear 135b-1. The ratchet plate (135b) a locking ratchet (135b-2) formed on the front upper surface between the pair of ratchet gears (135b-1); The operation knob (136) An electrically insulated rotary grip oar clamp stick with a double pawl operating part for indirect live-line work, characterized in that it comprises a second pawl (136b) that is provided to penetrate the upper front side and the center of the first pawl (136a) and corresponds to the locking ratchet (135b-2).

2. The pinion portion (138) a body (138b) connected to the rear of the extension rod (135a), with an upper portion of the outer periphery open and a hollow formed therein, through which the rear of the lower rack gear (137) passes; and a pair of pinion supports (138c) provided on both sides of the open upper portion of the body (138b) and rotatably supporting the pinion gear (138a).

3. The upper rack gear (139) It comprises guide grooves (139a) formed in the longitudinal direction on both side surfaces, The pinion support (138c) of the pinion portion (138) is The electric insulated rotary grip oar clamp stick with a double-pole operating part for indirect live-line work according to claim 2, further comprising a guide protrusion (138c-1) protruding from an upper portion of the inner surface and inserted into the guide groove (139a).

4. The pinion portion (138) 4. The electric insulated rotary grip oar clamp stick with double pawl operating parts for indirect live-line work according to claim 3, further comprising a bearing part (138d) provided in the hollow lower part of the body (138b) to support the lower surface of the lower rack gear (137).

5. The insulating rod portion (110) is a rotary pipe (130) having a hollow, provided on the outer periphery of the operating rod (125), and having a front portion connected to a rear portion of the holder portion (167); a support pipe (111) that is hollow and is provided on the outer periphery of the rotary pipe (130), and the holder part (167) is rotatably connected to the front part of the support pipe (111); The electric handle (155) a power transmission unit (156) provided between the rear portion of the support pipe (111) and the front portion of the double-pole operating unit (135), capable of transmitting power to the rotary pipe (130), and through which the rear portion of the operating rod (125) passes; a handle body (157) provided on the upper part of the power transmission part (156) and equipped with a drive motor; and a rotation prevention member (158) that is provided inside the power transmission unit (156) and prevents the rotation of the rotating pipe (130) when the handle body (157) is separated from the power transmission unit (156).

6. The power transmission unit (156) a gear housing (156a) provided between the rear of the support pipe body (111) and the front of the double pole operating unit (135); a first bevel gear (156b) provided at the front side of the interior of the gear housing (156a) and connected to the rear part of the rotary pipe (130); a second bevel gear (156c) provided at an upper inner portion of the gear housing (156a), corresponding to the first bevel gear (156b), and having a coupling hole (156c-1) formed therethrough; The anti-rotation member (158) a lower support (158a) provided at the lower inside portion of the gear housing (156a); an upper support (158b) that is elastically supported upward on an upper portion of the lower support (158a) and has an anti-rotation protrusion (158b-1) at its upper portion that is inserted into a coupling hole (156c-1) of the second bevel gear (156c) to prevent rotation of the second bevel gear (156c), according to claim 5.

7. An electrically insulated rotary grip oar clamp stick having a double-pole operating part for indirect live-line work, which clamps a work object using a hook assembly (177) inserted into a holder part (167) or rotates the holder part (167) using an electrically operated handle (155) connected to the holder part (167) via an insulating rod part (110) to rotate the clamped work object, an operating rod (125) that is provided through the hollow of the insulating rod portion (110) and has a front portion connected to a rear portion of the hook assembly (177); a double pole operating part (135) provided at the rear of the insulating rod part (110) and connected to the rear of the operating rod (125), for adjusting the depth to which the hook assembly (177) is inserted into the holder part (167); The double pole operating unit (135) is capable of two-stage movement operation, moving backward and then forward, by pulling only the operating knob (136) without pressing the rear parts of the first pole (136a) and the second pole (136b) against the stick, The two-stage movement operation is a step of performing one-stage movement by pressing the rear of the first pole (136a) to move the operating knob (136) forward, so that the front lower end of the second pole (136b) engages with the locking ratchet (135b-2) and moves the hook (188) only until it is not released; and after the step of performing the first-stage movement, a step of performing a second-stage movement in which the rear part of the second pole (136b) is pressed to move the operating knob (136) forward so that the hook (188) is opened. The hook assembly (177) is characterized in that the depth to which it is inserted into the holder part (167) is adjusted by a two-stage movement operation of the double pole operation part (135), and a method for operating an indirect live-line work tool using an electric insulated rotary grip oar clamp stick having a double pole operation part for indirect live-line work, including the two-stage movement operation.

8. A first preparation step (S10) of preparing an electric insulating rotary grip oar clamp stick for indirect live-line work according to any one of claims 1 to 6; a second preparation step (S20) of connecting a tip tool or a work object required for indirect live wiring to the hook assembly (177); a work execution step (S30) of rotating the clamped work object by operating the electric handle (155) and rotating the holder part (167); and a disassembly step (S40) of separating the hook assembly (177) from the tip tool or the work object required for the indirect live line work after the work is performed.

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