KR101650928B1

KR101650928B1 - Connecting Clamps for Aluminium Conductor Steel Reinforcement

Info

Publication number: KR101650928B1
Application number: KR1020160008740A
Authority: KR
Inventors: 전민성
Original assignee: (주)동명전기
Priority date: 2016-01-25
Filing date: 2016-01-25
Publication date: 2016-08-25

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a connection clam of a distribution line for electric wire replacement, and more particularly, And the connection clam of the power line replacement power distribution line.

Description

Connecting Clamps for Aluminum Conductor Steel Reinforcement

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a connection clam of a distribution line for electric wire replacement in a distribution technology field, and more particularly, And a connection clam of a power line replacement distribution line for facilitating replacement.

Generally, electricity generated by a power plant is supplied to the customer through transmission facilities and distribution facilities. Transmission is the process of transporting electricity to the final substation, and distribution is the process of supplying electricity to each consumer at the final substation.

The electric wires used for the supply of electric power may be provided with straight sleeves for connection or maintenance sleeves for repairing damaged parts. However, since failure occurs due to disconnection or the like in the construction of such sleeves, Damaged wires are replaced with wires that have exceeded their service life in order to ensure smooth supply and loss, and the number of wires that need to be replaced is increasing.

In particular, when replacing a power distribution line that supplies electricity to each customer in a substation, connect the new wire to the wire to be replaced and turn the engine plug to turn the wire to be replaced. New wires will be installed between Jeonju and Jeonju.

In order to prevent such deflection of the wire when the wire is passed through the road or various facilities during the replacement of the wire, it is necessary to install a footrest or scaffolding structure such as a steel frame on the ground. The dismantling increased the time and cost of replacing the wires, and caused various problems such as damaging the surrounding landscape due to such structures.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus developed to overcome the same problems will be described with reference to the accompanying drawings.

1 and 2, a connecting member between a connection cable to a conventional distribution line includes a guide member 10 that facilitates wire replacement. The guide member 10 is inserted into the upper part of the wire 2 of the electric pole 1 A body 13 integrally formed with the anticorrosive paper 11 and a body 13 integrally formed on the body 13 so as to be fixed to the body 2 with the fixing bolt 12, A rotation roller support portion 14 in which a rotation roller 15 having a bearing (not shown) is inserted and a release prevention bolt (not shown) which is fitted to the rotation roller support portion 14 by a certain distance from the upper portion of the rotation roller 15 17).

When the electric wire is exchanged by using the guide member 10 as described above, the anticorruption member 11 is fixed to the electric wire 2 of the electric pole 1 to perform the replacement operation of the electric wire 4, And the new wire 5 is passed through between the rotary roller 15 and the escape prevention bolt 17 to be installed. When the installation of the new wire 5 is completed, the fixing bolt 12 is loosened, 10) from the fresh wax (2).

However, since the guide member 10 according to this conventional technique simply serves to support the new electric wire 5 in a state of being fixed to the electric pole 1, the new electric wire 5 is supported on the electric pole 1 It is possible to use it in the case of a wire having a relatively short span, for example, a span of 50 m or less, but if the span is exceeded, deflection of the wire still occurs, so that the installation of a structure such as a footrest, It is difficult to replace the electric wire without the need for a cable.

In addition, since the conventional guide member 10 is provided with the roller 10 by the number of the electric wires 4 to be replaced, when the number of electric wires to be replaced is large, And a structure for simultaneously guiding a plurality of wires 4 to be replaced can not be easily implemented.

Korea Patent Registration No. 10-0669231 (2007.01.09.) 'Guide for wire replacement'

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide an electric wire which is guided so as not to be sucked by other wires arranged in parallel, It is possible to easily replace the wire regardless of whether or not the wire is replaced, minimize the stress applied to the replaced new wire to improve the construction quality, and eliminate the need to install a structure such as a footrest for assisting the work, And to provide a connection clam of a power line replacement line that minimizes the time and cost of the power line replacement, thereby achieving economical construction.

In order to achieve the above-mentioned object, the present invention provides a keeper (110) comprising a plurality of keeper (110) detachably fixed to any one of a plurality of wires (1,2) And a main body 120 connecting the guide unit 130 and the keeper 110. The connection cable of the power distribution line for the wire replacement includes:
The keeper 110 is hinge-coupled with a block-shaped clamp body 200 inserted into an opening of a U-shaped clamping part 121 of the main body 120, A fixed depth rod guide groove 220 is formed at the center of the upper surface of the clamp body 200. Fixed guide pieces 210 are formed on both sides of the upper surface of the clamp body 200, Protruding to form an overall 'U'shape; A rectangular shaped latching hole 212 is formed in a part of the fixed guide piece 210, and a cylindrical operation rod 230 is inserted into the rod guide groove 220 with a clearance. The return passage CR is formed symmetrically on the mutually facing surfaces of the clamp body 200. The return passage CR is pierced from the outer surface of the clamp body 200 toward the rod guide groove 220, And a steep slanting portion 314, a latching groove portion 316, a returning flow path portion 318 and a gentle slanting portion 320 are successively connected from the vertex home position portion 312 to the steep slanting portion 314 are formed in such a manner that the slope is relatively sharp compared to the gentle inclined portion 320 and are connected to each other at the home position portion 312 and extend through the home position portion 312 from both sides And a rod guide protrusion 232 which is screwed to the operation rod 230. The rod guide protrusion 232 is engaged with the groove position part 312. When the operation rod 230 is pushed, The guide projection 232 is caught by the engagement groove portion 316 to temporarily stop the movement , Or a jam condition is released, and designed to come back to the home position 312; A head portion 234 is formed at an upper end of the actuating rod 230. A lower end of the actuating rod 230 penetrates through a pair of folding ring pieces 240 whose ends are overlapped with each other, And an elastic spring 250 interposed between the lower end of the tearing ring piece 240 and the surface of the clamp body 200 is interposed between the lower end of the tearing ring piece 240 and the upper surface of the clamping body 200, The upper part of the overlapped part is disposed below the head part 234 and is hooked. The lower part of the overlapped part is hooked on the upper end of the elastic spring 250, And a latching bar 242 protrudes from the outer side surface of the latch to fit into the latching hole 212;
The guide means 130 includes first and second rollers 131 and 132 for rotatably supporting both sides of the electric wire 2 and first and second rollers 131 and 132 provided inside the first and second rollers 131 and 132, And first and second brackets 133 and 134 whose one side is hinged to each other so as to face the open side and first and second brackets 133 and 134 for preventing the electric wire 2 between the first and second rollers 131 and 132 from deviating laterally And fastening means (135) for fastening the brackets (133, 134) to each other;
The upper swivel chamber 410 is recessed into the lower end surface of the main body 120 and the upper shaft 430 is swiveled into the upper swivel chamber 410. The upper shaft 430 is connected to the main body 120 And a part of the upper shaft 430 is fixed by an upper cap 412 having a hole formed therethrough; A shaft guide SG vertically protrudes from the center of the upper surface of the first bracket 133. A lower swivel chamber 420 is formed on an upper surface of the shaft guide SG, A sub shaft 440 is swiveled and is fixed to the shaft guide SG by a lower cap 422 having a hole through which a part of the lower shaft 440 is inserted; The lower end of the upper shaft 430 and the upper end of the lower shaft 440 are connected to each other.

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According to the present invention, the wires to be replaced are guided so as not to be sucked by other wires arranged in parallel, so that they can be moved smoothly, thereby facilitating the replacement of the wires regardless of the size of the span, The effect of improving the quality of the construction can be obtained.

1 is a perspective view showing a connection clam of a power line replacement distribution line according to a conventional technique.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a perspective view showing a connection clam of a power line replacement line according to the present invention.
Fig. 4 is a front view showing a connection clam of a power line replacement line according to the present invention; Fig.
FIG. 5 is a side view showing a connection clam of a power line replacement line according to the present invention. FIG.
6 is a side view showing a state in which the keeper and the guiding means are opened between connection clams of a power line replacement line according to the present invention.
FIG. 7 and FIG. 8 are diagrams showing a use state between connection clams of a power line replacement line according to the present invention. FIG.
FIG. 9 is an exemplary view showing another embodiment of the connection clamps of the power line replacement line according to the present invention. FIG.
10 is an enlarged view of the main part of Fig.
Fig. 11 is an exemplary diagram excerpted from another essential part of Fig. 9; Fig.

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

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

The present invention is based on the registered patent presented in the prior art, and is improved to improve the convenience. Therefore, the contents of the prior art will be cited as it is with reference to Figs. 3 to 8, and the concept of the additional embodiment will be described more specifically with the features of the present invention.

As shown in FIGS. 3 to 5, the connection clam spaces 100 of the power line replacement distribution lines according to the present invention are used for replacing part or all of the wires 1, 2 arranged in parallel and arranged side by side, A plurality of keeper 110 fixed to any one of electric wires 1 and 2 and a main body 120 to which a plurality of keeper 110 are connected, (130).

The keeper 110 includes a plurality of first and second clamps 111 and 112 and a first and a second clamps 111 and 112 coupled to the main body 120. The first and second clamps 111 and 112 are detachably attached to the electric wire 1, (114).

Each of the first and second clamps 111 and 112 is hinged to a clamp engaging portion 121 formed at one end of the U-shaped body 120 in a U-shape, and the outer peripheral surface of the electric wire 1 A wire mounting portion 113 having a corresponding curvature is formed and connected to each other by the tightening means 114 so that the wire 1 located in the wire mounting portion 113 is fixed by tightening.

The wire mounting portion 113 may be formed on one or both sides of the opposed faces of the first and second clamps 111 and 112, respectively.

The first and second clamps 111 and 112 are arranged in such a manner as to be rotatable in a direction to mitigate the impact due to such vibrations as in the present embodiment at the time of oscillation in which the electric wires 1 and 2 have an amplitude in the direction orthogonal to the longitudinal direction 120 to the clamp engaging portion 121 of the clamping member.

The tightening means 114 includes a fastening groove 114a formed at the end of the first clamp 111 in a direction orthogonal to the longitudinal direction of the electric wires 1 and 2 and a fastening groove 114b formed in the fastening groove 114a, And the end of the first clamp 111 is fastened to the second clamp 112 by screwing the fastening bolt 114b hinged to the end of the tightening bolt 114b inserted in the fastening groove 114a, And a tightening nut 114c such as a butterfly nut fixed by pressure.

The main body 120 is connected in a state in which a plurality of keeper 110 are kept spaced apart from each other on the upper side and may be implemented in various shapes such as a combination of polygon, circle, curvature and straight line, "T" In this embodiment, a reinforcing member is provided on the inner side, a reinforcing member is provided on the inner side, a keeper 110 is coupled to both upper corner points, and a guide means 130 is coupled to the lower side vertex The stress due to the load or the like of the electric wires (1, 2) acts on the triangular member with a tensile force or a compressive force, thereby minimizing the deformation against warpage, thereby increasing the durability.

The guiding means 130 may be a single unit as in the present embodiment, but may be used for replacing a plurality of wires by forming a plurality of guiding units 130 in the same manner as the keeper 110, and the other one of the wires 2, And is hinged to the lower end of the main body 120 so as to mitigate an impact caused by various flows such as upward and downward flows of the electric wires 1 and 2, thereby forming a hinge coupling part 122 .

The guide means 130 includes first and second rollers 131 and 132 for rotatably supporting both sides of the electric wire 2 to be guided, first and second rollers 131 and 132 respectively installed so that the first and second rollers 131 and 132 face each other, 2 brackets 133 and 134 and fastening means 135 for fastening the first and second brackets 133 and 134 to each other.

The first and second rollers 131 and 132 are respectively formed with guide grooves having a curvature corresponding to the outer circumferential surface of the electric wire along the outer circumferential surface, and the electric wire 2 is located in a space formed between the opposing guide grooves.

The first and second brackets 133 and 134 have a cross-sectional shape of a "C" shape, and the first and second rollers 131 and 132 are rotatably supported by bearings (not shown) and spacers (not shown) And the other side is opened and closed by being hinged to each other by the hinge engaging part 136 in a state where the open sides are opposed to each other, And the second roller (131, 132).

The fastening means 135 is disposed between the first and second rollers 131 and 132 in such a manner that the first and second rollers 131 and 132 are opposed to each other, And the other sides of the brackets 133 and 134 are fastened to each other.

The fastening means 135 has a shaft 135a (shown in FIG. 6) protruding from the side surface of the first bracket 133 and a fastening groove 135b formed at the end of the shaft 135a so as to be caught by the shaft 135a. A fixing pin 135d slidably mounted on the outer circumferential surface of the shaft 135a and detachably fitted in the engaging groove 135b, And an elastic member 135e (shown in Fig. 6) which is provided at the fixing pin 135a (shown in Fig. 6) and provides an elastic force to the fixing pin 135d.

The shaft 135a (shown in FIG. 6) may be provided so as to protrude outward to the first bracket 133. However, as in the present embodiment, the first roller 131 may be rotatably fixed to the first bracket 133 Can play a role.

The engaging piece 135c is provided with an engaging groove 135b in which the width of the opened portion is smaller than the width of the inner side and the shaft 135a (shown in Fig. 6) It gets caught.

The shaft 135a may be provided at the first and second brackets 133 and 134 in a position different from that of the engaging piece 135c.

The fixing pin 135d moves along the outer circumferential surface of the shaft 135a (shown in FIG. 6) and is inserted into the engagement groove 135b having a width smaller than the width of the inner side so as to increase the diameter of the shaft 135a Thereby preventing the shaft 135a from being separated from the engagement groove 135b.

The elastic member 135e (shown in Fig. 6) is fitted to the end of the shaft 135a (shown in Fig. 6) into which the fixing pin 135d is fitted and is not released from the shaft 135a by the spring cap 135f And the elastic force is applied to the fixing pin 135d so that the fixing pin 135d can be held in the engagement groove 135b.

The action of the connection clams of the electric wire replacement distribution line having such a structure is as follows.

A plurality of members such as a damper for maintaining a gap between the wires in a section where wires are to be arranged are removed, and then, as shown in FIG. 6, the wires are opened by rotating the first and second clamps 111, (Shown in Fig. 3) of the electric wires 1 and 2 (shown in Fig. 3) is placed on the first clamp 114 and then the first and second clamps 111 and 112 are brought into contact with each other The fixing bolt 114b is rotated to be inserted into the coupling groove 114a and the tightening nut 114c is tightened so that the wire 1 is fixed to the keeper 110 as shown in Fig.

When the electric wire 1 is fixed to the keeper 110, as shown in FIG. 6, the fixing pin 135d is separated from the locking groove 135b, and the locking piece 135c is rotated by the shaft 135a, And then the first and second brackets 133 and 134 are opened so that the electric wire 2 is positioned between the first and second rollers 131 and 132. Then, , So that the electric wire (2) is guided by the guide means (130).

7, when the connection clam 100 of the power line replacement distribution line is installed in the plurality of electric wires 1 and 2 installed between the electric pole and the electric pole, The electric wire 2 guided by the guiding means 130 can be wound and replaced from the electric wire 1 fixed to the keeper 110.

8, the electric wire 1 fixed to the keeper 110 can be wound and replaced from the electric wire 2 guided by the guide means 130. As shown in Fig.

The electric wire 2 guided by the guide means 130 is rotatably supported by the first and second rollers 131 and 132 to move the electric wire 2 from the guide means 130 or to move the electric wire 2 from the electric wire 2, Thereby facilitating the movement of the movable member 110.

9 to 11, the structure of the keeper 110 may be modified.

In other words, in the above-described embodiment, since the keeper 110 is configured to fasten the butterfly nuts after inserting the electric wire 1, it takes a long time to work in the field work and the work efficiency may be lowered.

Therefore, in another embodiment according to the present invention, if the keeper 110 is pushed against the electric wire 1, it can be fastened easily and quickly while maintaining an appropriate fixing force.

For example, as shown in FIG. 9, the keeper 110 according to another embodiment of the present invention includes a block-shaped clamp body 200.

The shaft body 204 is inserted into the shaft hole 202 and the lower end of the clamp body 200 is connected to the lower end of the clamp body 200. [ The body shaft 204 is inserted into the shaft hole 202 through the clamp joint part 121 so that the clamp body 200 and the clamp joint part 121 are engaged with each other The hinge is fixed.

Here, the body shaft 204 is a kind of hinge shaft, and is preferably formed in a bolt shape as shown in the figure.

A fixed guide piece 210 having an approximately 'C' shape is integrally fixed to the upper surface of the body shaft 204. A hook hole 212 in the form of a long hole is formed in a part of the fixed guide piece 210, .

In this case, the latching holes 212 are formed in a rectangular shape and relatively large.

In addition, a quadrangular rod guide groove 220 is recessed in the center of the upper surface of the clamp body 200.

A cylindrical rod 230 is inserted into the rod guide groove 220. The rod guide groove 220 is longer than the rod 230 and has a larger width.

A rod guide protrusion 232 is screwed to the operation rod 230. The rod guide protrusion 232 is assembled perpendicularly or vertically to the operation rod 230. [

The rod guiding protrusion 232 is inserted into the rod guiding groove 220 from the outside of the clamping body 200 through one side of the clamping body 200. At this time, And is present on the return flow path CR to be described later.

Therefore, when the rod guide protrusion 232 is assembled, the operation rod 230 is restrained from being separated from the rod guide groove 220 while being inserted into the rod guide groove 220.

In addition, a head portion 234 is formed on the upper end of the operation rod 230. The lower end of the operation rod 230 passes through a pair of the retention loop pieces 240, And an elastic spring 250 interposed between the lower end of the gripping ring piece 240 and the surface of the clamping body 200 is interposed between the lower end of the gripping ring piece 240 and the operation rod 230.

The upper side of the overlapping portion is disposed below the head portion 234 and is hooked and the lower side of the overlapping portion is hooked on the upper end of the elastic spring 250. [

A locking bar 242 protrudes from the outer circumference of the folding ring piece 240 to be engaged with the locking hole 212. The inner circumferential surface of the locking ring piece 240 is firmly fixed to the inner circumferential surface of the coupling ring 240, The concavities and convexities 244 are formed so as to be fixed.

10, the return flow channel CR can perform a kind of switch function without detaching the rod guide protrusion 232 in a state where the rod guide protrusion 232 is fitted in the return flow channel CR .

The return flow path CR includes a steep slope portion 314, a latching groove portion 316, a return flow path portion 318, and a gradual slope portion 320 from the vertex home position portion 312.

In this case, the steep slanting portion 314 is formed to have a relatively steep slope relative to the gentle slanting portion 320, and is communicated at the home position portion 312.

The groove position part 312 is always positioned when the rod guiding projection 232 is not caught by the latching groove part 316 without receiving an external force.

The return passage 318 and the gentle inclined portion 320 guide the rod guide protrusion 232 to smoothly return to the home position portion 312.

Therefore, when the operating rod 230 is pushed, the rod guide protrusion 232 is caught by the engaging groove portion 316 formed at the portion where the rod guide portion 314 is sloped down and ran through the steep slope portion 314, which is relatively tilted.

When the operating rod 230 is further pushed in this state, the rod guide protrusion 232 is pulled out of the locking groove portion 316 and rides on the return channel portion 318 and the gentle slope portion 320, (312).

In order to perform such an operation, the operation rod 230 moves in the radial direction within the rod guide groove 220 in accordance with the locus of movement of the rod guide protrusion 232, A gap should be maintained between the operating rod 230 and the rod guide groove 220.

In addition, the return passage CR must communicate with the rod guide groove 220.

Thus, when the clamping body 200 is lifted and pushed up to the lower part of the electric wire 1, the electric wire 1 presses the head part 234, ).

At this time, since the latching bar 242 protruding from each outer side of the latching ring piece 240 is hooked to the lower end of the latching hole 212, the vertical It can not descend downward, and the wave guide member 240 is disengaged.

At this time, the overlapped portion of the wave-guiding member 240, that is, the portion through which the operating rod 230 penetrates, must be slightly spaced to secure the originality of the wave-guiding member 240.

When the breakage ring piece 240 is broken, the electric wire 1 is tightly caught and held by the breakage piece 240, and the unevenness 244 strengthens the engaging force so that the electric wire 1 is fixed do.

At the same time, since the rod guide protrusion 232 is caught by the engagement groove portion 316, the wire 1 can be maintained in a state of being bite for a long period of time.

Therefore, the operator can finish the installation process very easily.

When the wire guide protrusion 232 is to be disassembled, the wire guide protrusion 232 is automatically retracted along the return path R by pressing the wire 1 again. .

11, since the hinge coupling portion 122 is configured to be rotatable only in the longitudinal direction of the electric wire 1 with respect to the main body 120, the electric wire 2 is twisted There is no cushioning function against the tensile force and the hinge coupling part 122 may be damaged when a strong twisting force is applied.

Accordingly, in another embodiment of the present invention, the hinge coupling portion 122 is configured to be able to swivel the hinge coupling portion 122 so as to oppose the twisting force.

That is, the upper swivel chamber 410 is formed at the lower end of the main body 120.

At this time, an upper cap 412 is screwed to the lower end of the main body 120 in order to form the upper swivel chamber 410 and improve the assemblability. The upper cap 412 has an upper surface opened and a lower surface sealed It has a cylindrical shape, but it has a hole with a hole at the center in the bottom.

A shaft guide SG vertically protrudes from the center of the upper surface of the first bracket 133. A lower swivel chamber 420 is formed on an upper surface of the shaft guide SG, And the lower cap 422 is screwed to the upper end of the shaft guide SG to improve the assemblability.

At this time, the lower cap 422 has a cylindrical shape with a top surface being closed and a bottom surface being opened, and a hole is formed at the center of a top surface of the closed top.

The upper shaft 430 is swivelably fitted in the upper swivel chamber 410. The upper shaft 430 is formed in a substantially T shape and the upper shaft 430 Through the hole, the bottom is exposed downward.

The lower shaft 440 is formed in a substantially elliptical shape so that the lower shaft 440 is swivelably fitted in the lower swivel chamber 420. The lower shaft 440 is formed in a substantially ' The top is exposed through the hole.

The lower end of the upper shaft 430 and the upper end of the lower shaft 440 are screwed together.

The main body 120 and the shaft guide SG are rotatable in the longitudinal direction of the electric wire 1 by the hinge engaging part 122 and are supported on the upper shaft 430 and the lower shaft 440 It becomes swivelable so as to be able to resist the twist force.

In order to smoothly rotate the upper shaft 430 and the lower shaft 440, a rolling ball may be further provided on the outer circumferential surface of each shaft, and the upper swivel chamber 410 and the lower circumferential surface of the lower swivel chamber 420, A ball groove can be further formed.

110: Keeper 111: First clamp
112: second clamp 113: wire mounting part
114: tightening means 120:
121: clamp engaging portion 122, 136: hinge engaging portion
130: Guide means 131: First roller
132: second roller 133: first bracket
134: second bracket 135: fastening means

Claims

A plurality of keeper 110 detachably fixed to any one of the plurality of wires 1 and 2; guide means 130 for guiding the wires 1 and 2 when the wires 1 and 2 are replaced; And a main body 120 connecting the keeper 110 to the keeper 110,
The keeper 110 is hinge-coupled with a block-shaped clamp body 200 inserted into an opening of a U-shaped clamping part 121 of the main body 120, A fixed depth rod guide groove 220 is formed at the center of the upper surface of the clamp body 200. Fixed guide pieces 210 are formed on both sides of the upper surface of the clamp body 200, Protruding to form an overall 'U'shape; A rectangular shaped latching hole 212 is formed in a part of the fixed guide piece 210, and a cylindrical operation rod 230 is inserted into the rod guide groove 220 with a clearance. The return passage CR is formed symmetrically on the mutually facing surfaces of the clamp body 200. The return passage CR is pierced from the outer surface of the clamp body 200 toward the rod guide groove 220, And a steep slanting portion 314, a latching groove portion 316, a returning flow path portion 318 and a gentle slanting portion 320 are successively connected from the vertex home position portion 312 to the steep slanting portion 314 are formed in such a manner that the slope is relatively sharp compared to the gentle inclined portion 320 and are connected to each other at the home position portion 312 and extend through the home position portion 312 from both sides And a rod guide protrusion 232 which is screwed to the operation rod 230. The rod guide protrusion 232 is engaged with the groove position part 312. When the operation rod 230 is pushed, The guide projection 232 is caught by the engagement groove portion 316 to temporarily stop the movement , Or a jam condition is released, and designed to come back to the home position 312; A head portion 234 is formed at an upper end of the actuating rod 230. A lower end of the actuating rod 230 penetrates through a pair of folding ring pieces 240 whose ends are overlapped with each other, And an elastic spring 250 interposed between the lower end of the tearing ring piece 240 and the surface of the clamp body 200 is interposed between the lower end of the tearing ring piece 240 and the upper surface of the clamping body 200, The upper part of the overlapped part is disposed below the head part 234 and is hooked. The lower part of the overlapped part is hooked on the upper end of the elastic spring 250, And a latching bar 242 protrudes from the outer side surface of the latch to fit into the latching hole 212;
The guide means 130 includes first and second rollers 131 and 132 for rotatably supporting both sides of the electric wire 2 and first and second rollers 131 and 132 provided inside the first and second rollers 131 and 132, And first and second brackets 133 and 134 whose one side is hinged to each other so as to face the open side and first and second brackets 133 and 134 for preventing the electric wire 2 between the first and second rollers 131 and 132 from deviating laterally And fastening means (135) for fastening the brackets (133, 134) to each other;
The upper swivel chamber 410 is recessed into the lower end surface of the main body 120 and the upper shaft 430 is swiveled into the upper swivel chamber 410. The upper shaft 430 is connected to the main body 120 And a part of the upper shaft 430 is fixed by an upper cap 412 having a hole formed therethrough; A shaft guide SG vertically protrudes from the center of the upper surface of the first bracket 133. A lower swivel chamber 420 is formed on an upper surface of the shaft guide SG, A sub shaft 440 is swiveled and is fixed to the shaft guide SG by a lower cap 422 having a hole through which a part of the lower shaft 440 is inserted; Wherein a lower end of the upper shaft (430) and an upper end of the lower shaft (440) are fastened to each other.