Anti-disconnection safety structure anti-loosening function wedge-shaped tension clamp capable of indirect live-line work and wire fixing method using the same

Abstract

The present invention relates to a safety structure anti-loose function wedge-shaped tension clamp capable of performing indirect live line work and a wire fixing method using the same, and more particularly, to a safety structure anti-loose function wedge-shaped tension clamp capable of performing indirect live line work and a wire fixing method using the same, in which a pair of wedges is advanced or retreated by a live line work rod, a double fixing elastic pin is moved up and down by the live line work rod so as to be fixed or released after the pair of wedges is retreated, and is fixed or released after the pair of wedges is advanced, thereby enabling fixing or separation of the wire through indirect live line work, and is fixed in a manner of preventing loosening after the pair of wedges is advanced, thereby preventing the wire from being separated.

Description

Technical Field

[0001] This invention relates to a wedge-shaped tension clamp with anti-loosening function for a safety structure capable of indirect live-wire operation and a method for fixing wires using the same. More specifically, it discloses the following: a pair of wedges can be moved forward or backward using a live-wire operation rod, and a double-fixed elastic pin can be moved up and down using the live-wire operation rod, so that fixing or releasing can be performed after the pair of wedges are retracted. Moreover, fixing or releasing can be performed after the pair of wedges are moved forward, thereby achieving the fixing or separation of the wire through indirect live-wire operation, and fixing in a way that prevents loosening after the pair of wedges are moved forward, thereby preventing the wire from detaching. Background Technology

[0002] Generally, live-line work refers to line work performed while maintaining power supply. Live-line work carries a high risk of accidents and is therefore carried out in situations where power cannot be cut off, such as with power transmission and distribution equipment. Operators performing live-line work must use insulated protective gear or other protective equipment.

[0003] Live-line work is divided into direct live-line work and indirect live-line work. Indirect live-line work is a method of performing the work indirectly using insulated tools such as heated rods. Although indirect live-line work is safer, it has the disadvantage of requiring a longer work time.

[0004] In addition, direct live-wire work involves workers wearing insulated gloves directly contacting the power line while inside an insulated bucket in a live-wire state. While simple and time-saving, direct live-wire work carries a higher risk of electric shock and frequent injuries. Live-wire work includes the inspection, maintenance, installation, dismantling, and cleaning of power line components such as insulators. Depending on the type of work, either direct or indirect live-wire work methods may be appropriately employed.

[0005] In such live-line operations with internal columns, when setting the wire on the crossarm, a suspension insulator and a wedge tension clamp are used for connection. At this time, one side of the wedge tension clamp is set on the suspension insulator, and the other side holds and fixes the wire for setting.

[0006] Previously, bolt-tightening tension clamps were used, but improvements have been made, such as the use of boltless wedge-shaped tension clamps to save bolt tightening time, resulting in a 2.4% reduction in the cost of power line installation components, which has been reflected in the design.

[0007] On the other hand, as shown in the conventional wedge-shaped tension clamps used above, such as Korean Utility Model Authorization No. 20-0257876 and Korean Utility Model Authorization No. 20-0449746, a guide groove is formed on one side of the main body. A pair of wedges are slidably engaged in the guide groove by a wedge support plate that is elastically set by a spring. When an external force is applied to the wedge on the side with the handle to move it, the spring of the elastic support plate is compressed and the two wedges open. When the external force is released, the two wedges narrow and close and hold the wire as the elastic support plate springs back to its original position.

[0008] However, as mentioned above, the conventional wedge tension clamp is an indirect live wire operation tool and does not have a special device for opening the wedge. When using the wedge tension clamp to set up the wire, or when removing the wire due to the setting or aging of the wedge tension clamp, the operator has to be in direct contact with the wire while close to the live wire to perform the direct live wire operation of setting up and fixing the wire, and is always exposed to the risk of electric shock and other safety accidents.

[0009] In response, a wedge tension clamp opener for indirect live wire operations has been developed. This device is designed to be installed and used at a safe distance from wedge tension clamps and other indirect live wire operations. It allows for easy installation or removal of wires on or from the wedge tension clamps. The wedges of the wedge tension clamps can be opened and closed by applying pressure through the elastic clamp opening mechanism. However, due to the use of a striking method, the operation is unstable, and it cannot be performed when the operation direction does not match the site conditions. This results in the problem that it is practically difficult to use in indirect live wire operations on-site.

[0010] In addition, conventional wedge-shaped tension clamps include: a main body plate having an elastic means insertion groove formed in its length direction; a body fixedly attached to two sides of the main body plate and having a pair of guide portions that narrow in width as they approach the front end of the main body plate; an elastic means inserted into the elastic means insertion groove; a pin-shaped support frame with a "U"-shaped locking plate fixedly attached to its other end, the locking plate locking into one end of the elastic means insertion groove, and the pin-shaped support frame inserted into the inside of the elastic means; a wedge support plate configured to operate via the elastic means; and a pair of wedges linked by the wedge support plate and slidably disposed along the guide portions.

[0011] The conventional wedge-shaped tension clamp requires continuously maintaining the pair of wedges in a backward-retracting state when separating the wire, which is cumbersome as it requires separating the wire from the line before proceeding with the operation. Furthermore, when fixing the wire, it is cumbersome to insert the wire while maintaining the pair of wedges in a backward-retracting state, and then to release the wedges and strike them with a hammer or similar object.

[0012] In addition, the problem with conventional wedge tension clamps is that when the wire is fixed and the line is subjected to a vehicle collision or other impact, the fixing force of the pair of wedges is provided only by the elastic means, and the fixing force will be released instantly, causing the wire to detach from the wedge tension clamp. The detachment of the wire can lead to frequent grounding and other line accidents.

[0013] Recently, although technology for tension clamps for indirect live wires has been developed, due to technical limitations, they are still manufactured using bolt tightening. Because of the indirect live wire method, the bolt tightening and other procedures are complicated, which leads to an increase in the cost of wire installation components, resulting in increased material and construction costs. Furthermore, there is a fatal problem that the bolts may loosen due to natural vibrations, causing the wires to detach. Summary of the Invention

[0014] Technical issues

[0015] This invention is a technology created to solve the problems existing in the prior art. In the past, wedge-shaped tension clamps required maintaining a pair of wedges in a backward retraction state when separating or fixing wires. Therefore, it was cumbersome to separate the wires from the line before the operation. It was also cumbersome to use a hammer or the like to strike the pair of wedges to fix the wires after placing them between them. Furthermore, the problem of the wires coming off due to impact after they were fixed often occurred.

[0016] Therefore, the main objective of this invention is to provide a wedge-shaped tension clamp with anti-loosening function and a safety structure for preventing wire detachment during indirect live-line operations, and a wire fixing method using the same: a pair of wedges are fixed backward by using double-fixed elastic pins, and the pair of wedges are automatically advanced by using a live-line operation rod to move the double-fixed elastic pins downward. This not only ensures that the wire is stably and firmly fixed, but also, after the pair of wedges have advanced and fixed the wire, the pair of wedges are fixed upward by using the live-line operation rod to prevent loosening. This prevents the wire from loosening and detaching from the fixed state of the pair of wedges due to impact.

[0017] Technical solution

[0018] The present invention aims to achieve the above-mentioned objectives by providing a wedge-shaped tension clamp with a safety structure and anti-loosening function for indirect live-line operations, characterized by comprising: a clamp body 100 having an insertion groove 110 formed in the front upper part along the front-rear direction; a pair of guide blocks 200 formed in the front upper part of the clamp body 100; an elastic spring 300 embedded in the insertion groove 110; a support plate 400 placed on the upper surface of the clamp body 100 and elastically supported forward by the elastic spring 300; a pair of wedges 500 disposed inside the pair of guide blocks 200 and connected at their lower parts to the support plate 400; and a double-fixing elastic pin 600 penetrating the clamp body 100 and configured to move in the vertical direction to fix or release the pair of wedges 500 in a rearward movement state, and to fix or release the pair of wedges 500 in a safe structure that restricts rearward movement when they are moving forward.

[0019] Furthermore, the present invention is characterized in that the double-fixed elastic pin 600 includes: a pair of pins 610 which are elastically inclined to the side in the upward direction and protrude laterally and are formed with a locking portion 612 in a curved shape; and a fixing ring 620 through which the pair of pins 610 pass, and whose inner diameter is formed to lock the locking portion 612.

[0020] Furthermore, the present invention is characterized in that the pin 610 includes an anti-disengagement portion 614, which is laterally bent and formed to be located above the locking portion 612.

[0021] Furthermore, the present invention is characterized in that the clamp body 100 includes a pin hole 120, which is formed through the clamp and is formed through the clamp in the vertical direction in a manner located behind the insertion groove 110.

[0022] Furthermore, the present invention is characterized in that the clamp body 100 includes: a pin hole 120, which is formed through and is formed in the vertical direction behind the insertion groove 110, and a first locking step 121 is formed on the upper part in a manner corresponding to the anti-disengagement part 614.

[0023] Furthermore, the present invention is characterized in that the pin hole 120 includes a second locking step 122, which is formed on the upper part in a manner corresponding to the retaining ring 620.

[0024] Furthermore, the present invention is characterized in that the pair of wedges 500 each include: a fixing protrusion 510 protruding from the lower surface and elongated laterally; the support plate 400 includes: a guide groove 410 formed to correspond to the fixing protrusion 510 and built in such a way that the fixing protrusion 510 can move laterally; and a locking groove 420 formed in front of the guide groove 410 for the upper end of the double fixing elastic pin 600 to extend into / out of.

[0025] Furthermore, the present invention is characterized in that the double-fixed elastic pin 600 includes a first inclined surface 630, which is formed at the upper end in a manner that is inclined backward as it faces upward.

[0026] Furthermore, the present invention is characterized in that each of the pair of wedges 500 includes: a guide protrusion 520 which protrudes from the lower surface and is formed to be elongated in the lateral direction, such that the front end is in close contact with the rear end of the support plate 400, the guide protrusion 520 including: a second inclined surface 522 which is formed such that the rear end is inclined rearward in the upward direction.

[0027] Furthermore, this invention proposes a wire fixing method using a wedge-shaped tension clamp with a safety structure that prevents wire detachment and loosening, capable of indirect live-line operation. The method comprises: a first fixing step S10, where a pair of wedges 500 are moved rearward to open, and then fixed with double-fixed elastic pins 600; a wire placement step S20, where a live-line operation rod is used to move the wire W rearward to position it between the open pair of wedges 500; a wire fixing step S30, where another live-line operation rod is used to move the lower part of the double-fixed elastic pins 600 downward to release the fixation of the pair of wedges 500, allowing the pair of wedges 500 to move automatically forward; and a second fixing step S40, where a live-line operation rod is used to move the lower part of the double-fixed elastic pins 600 upward to securely fix the forward-moving pair of wedges 500, thereby preventing loosening.

[0028] The effects of the invention

[0029] The anti-loosening wedge tension clamp of the present invention, which is a safety structure for preventing wire detachment and is capable of indirect live-line operation, and the wire fixing method thereunder, can achieve the following effects: not only can a pair of wedges be fixed or released by retracting them using double-fixing elastic pins, but also a pair of wedges can be fixed or released by advancing them using the same double-fixing elastic pins. Therefore, the wire can be fixed or separated by indirect live-line operation without separating the wedge tension clamp from the line.

[0030] Furthermore, in this invention, the wire is placed between a pair of wedges after they are fixed by a double-fixed elastic pin. When the double-fixed elastic pin is moved downward using a live wire operation rod, the pair of wedges advance forcefully with elastic force and automatically fix the wire. This reduces the tedious process of hammering a pair of wedges with a hammer, thereby improving work efficiency.

[0031] Furthermore, after the pair of wedges advance, the present invention uses a live-line working rod to move the double-fixed elastic pin upward, so that the upper part of the double-fixed elastic pin is located behind the pair of wedges. This prevents the pair of wedges from moving backward due to impact, thereby achieving the effect of preventing the wire from detaching from the pair of wedges. Attached Figure Description

[0032] Figure 1 This is a perspective view showing a preferred embodiment of the wedge-shaped stretching clamp of the present invention.

[0033] Figure 2 This is a perspective view showing another angle of the wedge-shaped tension clamp according to a preferred embodiment of the present invention.

[0034] Figure 3 This is an exploded perspective view showing a preferred embodiment of the wedge-shaped tension clamp of the present invention.

[0035] Figure 4 This is a bottom perspective view showing a pair of wedges according to a preferred embodiment of the present invention.

[0036] Figure 5 These are perspective views and bottom perspective views illustrating a preferred embodiment of the present invention, including a pair of wedges, a support plate, and an elastic spring.

[0037] Figure 6 This is an exploded perspective view showing the support plate and elastic spring of a preferred embodiment of the present invention.

[0038] Figure 7 These are perspective views (a) and front views (b) illustrating a preferred embodiment of the double-fixed elastic pin of the present invention.

[0039] Figure 8 This is a perspective view of a wedge-shaped tension clamp with a pair of wedges moving backward, according to a preferred embodiment of the present invention.

[0040] Figure 9 It is shown Figure 8 A bottom-view perspective view of the wedge-shaped tension clamp with the main body of the clamp removed.

[0041] Figure 10 yes Figure 8 Partial sectional perspective view.

[0042] Figure 11 This is a perspective view of a wedge-shaped tension clamp that fixes an electrical wire by moving a pair of wedges forward, according to a preferred embodiment of the present invention.

[0043] Figure 12 It is shown Figure 11 A bottom-view perspective view of the wedge-shaped tension clamp with the main body of the clamp removed.

[0044] Figure 13 yes Figure 11 Partial sectional perspective view.

[0045] Figure 14 This is a perspective cross-sectional view of the fixture body according to a preferred embodiment of the present invention.

[0046] Figure 15 These are plan and side views illustrating the first fixing process of a preferred embodiment of the present invention.

[0047] Figure 16 These are plan and side views illustrating the wire installation process according to a preferred embodiment of the present invention.

[0048] Figure 17 These are plan and side views illustrating the wire fixing process of a preferred embodiment of the present invention.

[0049] Figure 18 This is a side view illustrating the second fixing process of a preferred embodiment of the present invention.

[0050] Detailed description of the main reference numerals in the accompanying drawings

[0051] W: Wire, 100: Clamp body, 110: Insertion groove, 120: Pin hole, 121: First locking step, 122: Second locking step, 123: Third locking step, 200: Guide block, 300: Elastic spring, 400: Support plate, 410: Guide groove, 420: Locking groove, 430: First assembly protrusion, 440: Long hole, 450: Guide bracket, 452: Guide wing, 454: Center protrusion, 456: Second assembly protrusion, 460: Rivet, 500: Wedge, 510: Fixing protrusion, 520: Guide protrusion, 522: Second inclined surface, 600: Double fixing elastic pin, 610: Pin, 612: Locking part, 614: Anti-detachment part, 620: Fixing ring, 630: First inclined surface. Detailed Implementation

[0052] This invention relates to a wedge-shaped tension clamp capable of indirect live-wire operations and a method for securing wires using the same. More specifically, it relates to a wedge-shaped tension clamp with a safety structure and anti-loosening function that prevents wire detachment during indirect live-wire operations and a method for securing wires using the same: By positioning the locking portion 612 of the double-fixing elastic pin 600 at the lower part of the fixing ring 620, a pair of wedges 500 are retracted, i.e., moved rearward and secured. The wire W is then positioned between the retracted and secured pair of wedges 500. Finally, a live-wire operation rod is used to secure the double-fixing elastic pins... The 600 moves downward, causing the pair of wedges 500, which are fixed backward, to move forward by means of elastic force. This forward movement of the pair of wedges 500 stabilizes and securely fixes the wire W. Furthermore, after the pair of wedges 500 have moved forward, the double-fixed elastic pin 600 is moved upward using a wire-operating rod, so that the locking part 612 is located above the fixing ring 620. This securely fixes the pair of wedges 500 in their forward-moving state using the double-fixed elastic pin 600, preventing the wire W from detaching.

[0053] The wedge-shaped tension clamp of the present invention, which is a safety structure for preventing wire detachment and loosening of indirect live wire operation, as described above, is characterized by comprising: a clamp body 100, which has an insertion groove 110 formed in the front of its upper part along the front-rear direction; a pair of guide blocks 200 formed in the front of the upper part of the clamp body 100; an elastic spring 300 disposed within the insertion groove 110; a support plate 400 disposed on the upper surface of the clamp body 100 and elastically supported forward by the elastic spring 300; a pair of wedges 500 disposed inside the pair of guide blocks 200 and joined at the lower part to the support plate 400; and a double-fixing elastic pin 600 that penetrates the clamp body 100 and is configured to move in the vertical direction, fixing or releasing the pair of wedges 500 in a safe structure that restricts rearward movement when the pair of wedges 500 move backward, and fixing or releasing the pair of wedges 500 in a forward movement state.

[0054] Furthermore, the present invention is characterized in that the double-fixed elastic pin 600 includes: a pair of pins 610 which are elastically inclined to the side in the upward direction and protrude laterally and are formed with a locking portion 612 in a curved shape; and a fixing ring 620 through which the pair of pins 610 pass, and whose inner diameter is formed to lock the locking portion 612.

[0055] Furthermore, the present invention is characterized in that the pin 610 includes an anti-disengagement portion 614, which is laterally bent and formed to be located above the locking portion 612.

[0056] Furthermore, the present invention is characterized in that the clamp body 100 includes a pin hole 120, which is formed through the clamp and is formed through the clamp in the vertical direction in a manner located behind the insertion groove 110.

[0057] Furthermore, the present invention is characterized in that the clamp body 100 includes: a pin hole 120, which is formed through and is formed in the vertical direction behind the insertion groove 110, and a first locking step 121 is formed on the upper part in a manner corresponding to the anti-disengagement part 614.

[0058] Furthermore, the present invention is characterized in that the pin hole 120 includes a second locking step 122, which is formed on the upper part in a manner corresponding to the retaining ring 620.

[0059] Furthermore, the present invention is characterized in that the pair of wedges 500 each include: a fixing protrusion 510 protruding from the lower surface and elongated laterally; the support plate 400 includes: a guide groove 410 formed to correspond to the fixing protrusion 510 and built in such a way that the fixing protrusion 510 can move laterally; and a locking groove 420 formed in front of the guide groove 410 for the upper end of the double fixing elastic pin 600 to extend into / out of.

[0060] Furthermore, the present invention is characterized in that the double-fixed elastic pin 600 includes a first inclined surface 630, which is formed at the upper end in a manner that is inclined backward as it faces upward.

[0061] Furthermore, the present invention is characterized in that each of the pair of wedges 500 includes: a guide protrusion 520 which protrudes from the lower surface and is formed to be elongated in the lateral direction, such that the front end is in close contact with the rear end of the support plate 400, the guide protrusion 520 including: a second inclined surface 522 which is formed such that the rear end is inclined rearward in the upward direction.

[0062] The wire fixing method of the present invention, which utilizes a wedge-shaped tension clamp with a safety structure and anti-loosening function capable of indirect live-line operation, is characterized by comprising: a first fixing step S10, in which a pair of wedges 500 are moved rearward to open and then fixed with a double-fixed elastic pin 600; a wire placement step S20, in which the wire W is moved rearward with a live-line operation rod to position it between the open pair of wedges 500; a wire fixing step S30, in which the lower part of the double-fixed elastic pin 600 is moved downward with another live-line operation rod to release the fixation of the pair of wedges 500, thereby allowing the pair of wedges 500 to move forward automatically; and a second fixing step S40, in which the lower part of the double-fixed elastic pin 600 is moved upward with a live-line operation rod to securely fix the forward-moving pair of wedges 500 in a secure structure, thereby preventing them from loosening.

[0063] Hereinafter, reference will be made to embodiments of the present invention. Figures 1 to 18 The present invention will be described in detail below.

[0064] The clamp body 100, a key component of the present invention, has an insertion groove 110 formed in the front of the upper part along the front-rear direction. The elastic spring 300, which will be described in detail later, and the lower part of the support plate 400, i.e. the guide wing 452 of the guide bracket 450, are built into the insertion groove 110. Guide blocks 200, which will be described in detail later, are formed on both sides of the insertion groove 110. The support plate 400, which will be described in detail later, and a pair of wedges 500 are provided on the upper surface where the insertion groove 110 is formed.

[0065] In this invention, the clamp body 100 is mounted on the suspension insulator at the rear by a cotter pin during the installation of the wire W, and then the wire W is fixed to the front by a pair of wedges 500, which will be described in detail later, for installation.

[0066] The insertion slot 110 is equipped with an elastic spring 300, which will be described in detail later, and the front is open, making it easy to install the elastic spring 300 and the support plate 400, which will be described in detail later.

[0067] Meanwhile, the clamp body 100 of the present invention includes a pin hole 120, which is formed through and is formed in the vertical direction behind the insertion groove 110. The pin hole 120 is formed in a shape corresponding to the double fixed elastic pin 600, which is provided to allow the double fixed elastic pin 600, which will be described in detail later, to pass through.

[0068] At this time, the pin hole 120 includes a first locking step 121 formed on the upper part. The first locking step 121 supports the lower part of the anti-disengagement part 614 of the double-fixed elastic pin 600, which will be described in detail later, so as to lock it, thereby achieving the effect of preventing the double-fixed elastic pin 600 from moving to the lower part of the pin hole 120 and disengaging.

[0069] Meanwhile, the pin hole 120 includes a second locking step 122, which is formed on the upper part in a manner corresponding to the retaining ring 620 of the double-fixed elastic pin 600 described in detail later. The second locking step 122 supports the lower part of the retaining ring 620 to lock it in place, thereby not only preventing the double-fixed elastic pin 600 from moving to the lower part of the pin hole 120 and disengaging, but also allowing the locking part 612 of the double-fixed elastic pin 600 described in detail later to move smoothly downward through the retaining ring 620.

[0070] Furthermore, the pin hole 120 includes a third locking step 123, which is formed on the upper part in a manner corresponding to the locking portion 612 and is located below the second locking step 122. The third locking step 123 supports the lower part of the locking portion 612 of the double-fixed elastic pin 600, which will be described in detail later, so as to lock it.

[0071] On the other hand, the clamp body 100 of the present invention includes a pair of wedge guide grooves (not shown) formed on both sides of the upper front face in such a way that they are inclined inward as they move forward. The wedge guide grooves have wedge guide protrusions (not shown) protruding from the lower part of the wedge 500, which will be described in detail later, so that the wedge 500 moves inward together not only when it moves forward, but also moves outward together when it moves backward.

[0072] A pair of guide blocks 200, which are the main components of the present invention, are formed on the upper front of the clamp body 100. They are formed on both sides of the upper front of the clamp body 100 in an inward and forward-facing manner, and are integrally formed with the clamp body 100. A pair of wedges 500, which will be described in detail later, are disposed on their inner side. When they move forward and backward along their inner side, the inner space of the pair of wedges 500 expands or shrinks, thereby allowing the wire W to be fixed or released.

[0073] That is, the pair of guide blocks 200 of the present invention support the two sides of the pair of wedges 500 described in detail later, so that the pair of wedges 500 can stably open or close when moving forward and backward.

[0074] Such a pair of guide blocks 200 of the present invention includes a wedge anti-disengagement protrusion (not shown) protruding inwardly on the upper part of the inner side, which prevents the pair of wedges 500 from disengaging upward.

[0075] The elastic spring 300, a key component of the present invention, is built into the insertion slot 110 and provides forward elastic support to the support plate 400 (described in detail later). This provides forward elastic support to the support plate 400 and a pair of wedges 500 connected to the support plate 400 (described in detail later), so that the wire W can be kept stably fixed by the pair of wedges 500.

[0076] That is, the rear of the elastic spring 300 of the present invention is supported by the inner rear of the insertion groove 110, so that an elastic force is generated forward, thereby elastically supporting the support plate 400 (described in detail later) forward, thereby elastically supporting the pair of wedges 500 attached to the support plate 400 together with the support plate 400 forward, so that the wire W can maintain a stable and firmly fixed state.

[0077] At this time, the front of the elastic spring 300 of the present invention is supported behind the front lower part of the support plate 400, which will be described in detail later, that is, behind the front lower part of the guide bracket 450. When the pair of wedges 500 move backward, they are compressed backward by the support plate 400. Then, when the pair of wedges 500 are released from fixation by the double fixed elastic pin 600, which will be described in detail later, an elastic force is generated forward, so that the pair of wedges 500 move forward automatically.

[0078] The support plate 400, a key component of the present invention, is placed on the upper surface of the clamp body 100 and is elastically supported forward by the elastic spring 300. The lower part is built into the insertion groove 110 and moves forward and backward along the insertion groove 110. The front of the elastic spring 300 described above is supported behind the lower front part, thereby being elastically supported forward by the elastic spring 300. The upper part is combined with a pair of wedges 500, which will be detailed later, so that the pair of wedges 500 are elastically supported forward together by the elastic spring 300.

[0079] That is, the support plate 400 of the present invention causes the pair of wedges 500 to move forward and backward by engaging their lower parts, opening the pair of wedges 500 as they move backward, and closing the pair of wedges 500 as they move forward.

[0080] At this time, the pair of wedges 500 open when moving backward and close when moving forward through the wedge guide groove of the clamp body 100 described above.

[0081] Such a support plate 400 of the present invention includes: a guide groove 410, which is formed to correspond to a fixing protrusion 510 protruding from the lower surface of each of a pair of wedges 500 as detailed laterally, and is built in such a way that the fixing protrusion 510 can move laterally; and a locking groove 420, which is formed in front of the guide groove 410 for the upper end of the double fixing resilient pin 600, as detailed laterally, to extend into / out of.

[0082] That is, the support plate 400 of the present invention uses the guide groove 410 to integrate the lower part of a pair of wedges 500, namely the fixing protrusion 510, so that when moving forward and backward, the pair of wedges 500 move together. Moreover, when the fixing protrusion 510 moves laterally, the pair of wedges 500 open or close.

[0083] When the locking part 612 of the double-fixed elastic pin 600 (described later) is located below the fixing ring 620, and the pair of wedges 500 (described later) move backward, the double-fixed elastic pin 600 moves downward and then moves upward with elasticity to be embedded, thereby enabling the pair of wedges 500 to maintain the state of moving backward.

[0084] That is, the wedge-shaped tension clamp of the present invention does not require the continuous use of tension or a spreader to open a pair of wedges as in the past. By pulling the double fixing elastic pin 600 downward, the locking part 612 is located behind the lower part of the fixing ring 620. If the pair of wedges 500 are moved backward, the upper part of the double fixing elastic pin 600 automatically locks into the fixing protrusion 510, thereby stably maintaining the state of the pair of wedges 500 moving backward. This achieves the effect of not only being able to house the wire W to be fixed inside the pair of wedges 500, but also being able to easily separate the wire W fixed by the pair of wedges 500 using a live wire operation rod.

[0085] At this time, the locking groove 420 can be formed in front of the guide groove 410, but it is preferred to be formed to communicate with the guide groove 410. This is so that the upper part of the double fixing elastic pin 600 can achieve the above locking more naturally and smoothly.

[0086] In addition, the support plate 400 of the present invention includes: a first assembly protrusion 430 formed at the front end in a downward direction; an elongated hole 440 formed through it in a manner that extends longitudinally in a front-back direction; a guide bracket 450 having a hemispherical central protrusion 454 with a diameter (not shown) corresponding to the width (not shown) of the elongated hole 440 protruding from its upper surface, and a second assembly protrusion 456 formed at the front end in a downward direction in a manner corresponding to the first assembly protrusion 430; and a rivet 460 connecting the first assembly protrusion 430 and the second assembly protrusion 456.

[0087] Meanwhile, the guide bracket 450 includes a pair of guide wings 452, which are formed on one side and the other side respectively in a manner that bends along the lower direction and are built into the insertion slot 110.

[0088] After the first assembly protrusion 430 brings the front of the second assembly protrusion 456 of the guide bracket 450 into close contact with the rear of the first assembly protrusion 430, the guide bracket 450 is then engaged with the support plate 400 by means of the rivets 460.

[0089] The elongated hole 440 has a central protrusion 454 of the guide bracket 450 built into its lower part, so that the second assembly protrusion 456 smoothly fits against the first assembly protrusion 430, thereby facilitating the connection by the rivet 460.

[0090] At this time, the central protrusion 454 moves along the length direction of the elongated hole 440 after being built into the elongated hole 440, thereby making it easier to join the second assembly protrusion 456 and the first assembly protrusion 430 through the rivet 460.

[0091] The pair of guide wings 452 are built into the insertion slot 110 and located on both sides of the upper part of the elastic spring 300. Therefore, they are not affected by the elastic spring 300 and allow the guide bracket 450 to move forward and backward along the insertion slot 110, thereby achieving the effect of making the support plate 400 move stably forward and backward.

[0092] In addition, although the rivet 460 is not shown in the drawings, it may include a guide pin that protrudes rearward and is inserted into the inner side of the elastic spring 300. The guide pin 610 enables the compression and expansion of the elastic spring 300 to proceed stably and smoothly.

[0093] A pair of wedges 500, which are the main components of the present invention, are disposed inside the pair of guide blocks 200, and their lower parts are combined with the support plate 400. They move forward and backward together with the support plate 400 and are elastically supported forward by the elastic spring 300 together with the support plate 400. When moving backward, they open up so that the wire W can be built in, and when moving forward, the built-in wire W is fixed.

[0094] Such a pair of wedges 500 of the present invention includes wedge guide protrusions formed on one side and the other side of the lower surface respectively in a manner that protrudes in the lower direction and are formed to correspond to the wedge guide grooves formed on the guide block 200. The wedge guide protrusions open by moving in the outer direction when moving backward, and close by moving in the inner direction when moving forward.

[0095] Furthermore, as described above, the pair of wedges 500 of the present invention each include a fixing protrusion 510, which protrudes from the lower surface and is formed to be elongated in the lateral direction, and is housed in the guide groove 410 of the support plate 400 in a manner that allows it to move laterally.

[0096] The lower part of the fixed protrusion 510 is built into the guide groove 410 of the support plate 400. Therefore, when the support plate 400 moves forward and backward, a pair of wedges 500 move forward and backward together. When the pair of wedges 500 moves backward, they move along the guide groove 410 in the outer direction. When the pair of wedges 500 moves forward, they move along the guide groove 410 in the inner direction, thereby enabling the pair of wedges 500 to open or close.

[0097] Meanwhile, the pair of wedges 500 of the present invention each include a guide protrusion 520, which protrudes from the lower surface and is formed to a greater extent in the lateral direction, so that the front end is in close contact with the rear end of the support plate 400.

[0098] The guide protrusion 520, by making close contact with the rear of the support plate 400, prevents the support plate 400 from disengaging behind the pair of wedges 500, thereby enabling the pair of wedges 500 to maintain a stable engagement with the support plate 400.

[0099] At this time, the guide protrusion 520 includes a second inclined surface 522 formed by tilting backward in the direction of upward.

[0100] As previously described, when the locking portion 612 of the double-fixed elastic pin 600 (described in detail later) moves to the lower part of the fixing ring 620, and the pair of wedges 500 and the support plate 400 move backward, the upper part of the double-fixed elastic pin 600 is pressurized and smoothly moves to the lower surface of the pair of wedges 500 and the support plate 400, thereby achieving the effect that the upper part of the double-fixed elastic pin 600 can be easily locked onto the fixing protrusion 510.

[0101] In addition, it is preferable that the protrusion length of the fixing protrusion 510 and the guide protrusion 520 is smaller than that of the wedge guide protrusion. This is so that the support plate 400 is located inside the fixing protrusion 510 of the wedge, thereby maintaining a more stable engagement with the pair of wedges 500.

[0102] The double-fixed elastic pin 600, a key component of the present invention, is provided through the clamp body 100 and is configured to move in the vertical direction to fix or release the pair of wedges 500 from moving backward. Furthermore, it is fixed or released with a safe structure that restricts backward movement while the pair of wedges 500 are moving forward. Thus, by using a live-line operation rod and employing an indirect live-line operation method, the fixing or separation of the wire W can be achieved without separating the wedge-shaped tension clamp of the present invention from the line.

[0103] That is, when the pair of wedges 500 are opened to fix or separate the wire W, the double-fixing elastic pin 600 of the present invention can fix the pair of wedges 500 in a backward moving state simply by using a live-line working rod. And when the wire W is fixed, the pair of wedges 500 can be fixed in a forward moving state, thereby preventing the pair of wedges 500 from moving backward due to external impact, and thus preventing the wire W from detaching from the pair of wedges 500, thereby achieving the effect of preventing safety accidents.

[0104] Specifically, the double-fixed elastic pin 600 of the present invention includes: a pair of pins 610, which are elastically inclined to the side, i.e. to the outside, as they are oriented upwards and laterally protrude and are curved, and are respectively formed with locking portions 612; and a fixing ring 620, through which the pair of pins 610 pass, and whose inner diameter is formed to lock the locking portions 612.

[0105] The pair of pins 610 are made of a flexible metal material and are integrally connected at the bottom to form a "V" shape, thus forming elasticity in the outer direction, and are provided through the pin hole 120 of the clamp body 100 described above.

[0106] That is, the double-fixed elastic pin 600 of the present invention is provided with the lower part of a pair of pins 610 located in the lower part of the pin hole 120, so that the operator can easily hold the lower part or release the hold with the live-line working rod, thereby being able to move up and down.

[0107] At this time, the pair of pins 610 may also include hooks (not shown) attached to the lower part, which enable the operator to move the double fixed elastic pins 600 of the present invention up and down more easily by means of a live-line work rod.

[0108] In addition, the pair of pins 610 are elastic in the outward direction, so that after passing through the pin hole 120, they naturally open outward and move towards the upper part of the pin hole 120.

[0109] The inner diameter of the retaining ring 620 is formed to lock the locking portion 612, so that when it is located above the locking portion 612, it restricts the pair of pins 610 from opening outward, thereby preventing movement to the upper part of the pair of pins 610.

[0110] That is, when the pair of wedges 500 are moved backward, the fixing ring 620 is located above the locking part 612, minimizing the length of the upper part of the pair of pins 610 protruding into the upper part of the pin hole 120. As the pair of wedges 500 are moved backward, they are naturally pressed downward and move to the lower part of the pair of wedges 500 and the support plate 400. Then the upper part of the pair of pins 610 is locked in the locking groove 420, so that the pair of wedges 500 can maintain the state of moving backward.

[0111] Furthermore, when the fixing ring 620 moves the pair of wedges 500 that were moving backward forward, the operator uses a live-line working rod to pull the lower part of the pair of pins 610 downward, so that the upper part of the pair of pins 610 disengages from the locking groove 420, thereby causing the pair of wedges 500 to move forward.

[0112] At this time, the pair of wedges 500 are moved backward by the double-fixed elastic pins 600 as described above and are fixed when the compression force of the elastic spring 300 reaches its maximum state. Afterward, when the double-fixed elastic pins 600 are pulled downward to release the fixation, the elastic spring 300 expands due to the compression force and moves forward with strong elastic force, thereby achieving the effect of automatically fixing the wire W to the inside.

[0113] Therefore, the wedge-shaped tension clamp of the present invention eliminates the previous method of using a hammer or the like to strike the pair of wedges while the wire W is fixed between them, thereby achieving the effect of making the fixing of the wire W smoother.

[0114] In addition, when the pair of wedges 500 move forward, the operator uses a live wire rod to apply pressure to the pair of pins 610 upward, causing the locking part 612 to move towards the upper part of the fixing ring 620 and naturally open outward and move upward along the pin hole 120, so that the upper part is in close contact with the rear of the pair of wedges 500, thereby enabling the pair of wedges 500 to maintain the forward movement state, that is, the wire W is stably and firmly fixed to the pair of wedges 500.

[0115] At this point, it is obvious that when the operator moves the pair of pins 610 upward or downward, the locking part 612, by means of elasticity, will be embedded inside the fixing ring 620 when the pair of pins 610 move inward, thereby enabling it to move.

[0116] Meanwhile, the retaining ring 620 is engaged with the second retaining step 122 of the pin hole 120 described above, thereby restricting its movement in the downward direction, and when moved by the operator to the lower part of the retaining part 612, it is restricted from moving in the upward direction by the wires W fixed by a pair of wedges 500 and will not disengage.

[0117] Related to the above, the pin 610 includes an anti-detachment portion 614, which is laterally bent and positioned above the locking portion 612. The anti-detachment portion 614 not only prevents the fixing ring 620 from detaching from the upper part of the pair of pins 610, but also has its upper surface locked against the lower part of the outer periphery of the wire W fixed by the pair of wedges 500, thereby achieving the effect of preventing the double-fixing elastic pin 600 of the present invention from detaching from the upper part of the pin hole 120.

[0118] That is, when the pair of wedges 500 move forward and the operator moves the pair of pins 610 upward, the upper surface of the anti-detachment part 614 is locked against the lower outer periphery of the wire W, so that the locking part 612 can move towards the upper part of the fixing ring 620. And when the operator moves the pair of pins 610 downward, it prevents the pair of pins 610 from detaching from the lower part of the fixing ring 620, so that the locking part 612 moves towards the upper and lower parts of the fixing ring 620 with the pair of pins 610 penetrating the pin hole 120.

[0119] In addition, when the double-fixing elastic pin 600 of the present invention is used to fix or separate the wire W fixed by the pair of wedges 500 by moving the pair of wedges 500 backward, the locking part 612 is located at the lower part of the fixing ring 620 by the operator's movable wire operating rod. When the pair of wedges 500 move forward and fix the wire W by the pair of wedges 500, the operator applies pressure upward by moving the movable wire operating rod, so that the locking part 612 is located at the upper part of the fixing ring 620. Thus, not only is the backward movement of the pair of wedges 500 fixed or released, but the forward movement of the pair of wedges is also fixed or released.

[0120] Thus, the wedge-shaped tension clamp of the present invention achieves the effect of fixing or separating the wire W by means of the double fixed elastic pin 600 through the wire-operating rod in an indirect wire-operating manner.

[0121] On the other hand, the double-fixed elastic pin 600 of the present invention, namely a pair of pins 610, includes a first inclined surface 630. The first inclined surface 630 is formed at the upper end in a manner that is inclined backward in the upward direction. When the locking part 612 is located at the lower part of the fixing ring 620, the first inclined surface 630 is in close contact with the rear of the guide protrusion 520 when the pair of wedges 500 move backward, thereby achieving the effect of pressing the pair of pins 610 downward while naturally moving them to the lower part of the pair of wedges 500 and the support plate 400.

[0122] That is, when the pair of wedges 500 move backward, together with the first inclined surface 630 and the second inclined surface 522 formed behind the guide protrusion 520 as described above, the upper part of the pair of pins 610 is naturally pressed downward and moves naturally to the lower part of the pair of wedges 500 and the support plate 400.

[0123] The following is a detailed description of the wire fixing method using a wedge-shaped tension clamp with an anti-loosening function and a safety structure for preventing wire detachment, which has the above-described configuration and is capable of indirect live-line operation.

[0124] First, the wire fixing method using a wedge-shaped tension clamp with an anti-loosening function and a safety structure that prevents wire detachment during indirect live-line work is explained.

[0125] The following steps are performed using a wedge-shaped tension clamp with a safety structure that prevents wire detachment and loosening, which is capable of performing indirect live-line work: a first fixing step S10 that fixes a pair of wedges 500 backward; a wire placement step S20 that positions the wire W between the pair of wedges 500; a wire fixing step S30 that moves the pair of wedges 500 forward; and a second fixing step S40 that fixes the moving pair of wedges 500.

[0126] At this time, in order to use the wire fixing method of the anti-loosening wedge tension clamp with the anti-wire disconnection safety structure that can perform indirect live-line work, the operator uses the live-line bucket to ensure a safe distance while approaching the vicinity of the power line wire W, and prepares a pole for live-line work when approaching.

[0127] Furthermore, when performing the wire fixing method using a wedge-shaped tension clamp with an anti-loosening function and a safety structure capable of indirect live-line operation, it is obvious that the wedge-shaped tension clamp of the present invention is installed on the power distribution line, and it is obvious that the rear of the wedge-shaped tension clamp of the present invention is fixed to the suspension insulator, and the front is fixed by a tensioner, etc.

[0128] After the first fixing step S10 moves the pair of wedges 500 backward and opens them, it uses a double fixing elastic pin 600 to fix the pair of wedges 500, so that the operator can use a live-line work rod to hold the lower part of the double fixing elastic pin 600 and pull it downward, so that the locking part 612 is located at the lower part of the fixing ring 620.

[0129] At this time, the locking part 612 is located at the lower part of the fixing ring 620. This can be determined by sensing the sound or impact when a pair of pins 610 first move inward and then return to the outward direction. If the locking part 612 is in the initial state at the lower part of the fixing ring 620, this step is omitted.

[0130] Subsequently, the operator uses a live-line work rod to push a pair of wedges 500 backward, thereby keeping the pair of wedges 500 in an open state by moving backward through the double-fixed elastic pins 600.

[0131] In the wire placement process S20, the wire W is moved backward using a wire-operating pole so that it is positioned between a pair of open wedges 500. The operator uses the wire-operating pole to position the wire W between the pair of open wedges 500.

[0132] In the above-mentioned wire fixing process S30, the lower part of the double fixing elastic pin 600 is moved downward by another movable wire working rod to release the fixing of the pair of wedges 500, so that the pair of wedges 500 move forward automatically. Since the operator used the movable wire working rod to position the wire W between the pair of wedges 500 in the above-mentioned wire placement process S20, the lower part of the double fixing elastic pin 600 is moved downward by another movable wire working rod.

[0133] At this point, if the live-line working pole that positions the wire W between a pair of wedges 500 can be reused due to the load on the wire W, then another live-line working pole may not be used.

[0134] In the above-mentioned wire fixing process S30, by moving the double fixing elastic pin 600 downward, the pair of wedges 500 that are fixed backward automatically move forward with the help of elastic force, thereby making the wire W more stable and securely fixed.

[0135] In the second fixing process S40 described above, the lower part of the double fixing elastic pin 600 is moved upward by the movable line working rod to fix the pair of wedges 500 that are moving forward, so that the operator can use the movable line working rod to hold the lower part of the double fixing elastic pin 600 and press it upward so that the locking part 612 is located on the upper part of the fixing ring 620.

[0136] That is, in the second fixing step S40, the locking part 612 is positioned above the fixing ring 620, so the double fixing elastic pin 600 is maintained in a state of natural upward movement by means of the elastic force in the outer direction, so that the rear of the pair of wedges 500 is locked at the upper part of the double fixing elastic pin 600 and the pair of wedges 500 is restricted from moving backward, i.e., moving backward. Thus, it has a safe structure, and even if an external impact occurs, the pair of wedges 500 will not move backward and open, thus preventing the wire W from coming off.

[0137] At this point, it is obvious that the locking part 612 located on the upper part of the fixing ring 620 can be determined by sensing the sound or impact when a pair of pins 610 first move inward and then return to the outward direction.

[0138] The present invention has been described above with reference to preferred embodiments, but the present invention is not limited to the above embodiments. Through the above embodiments, those skilled in the art can implement the invention in various ways without departing from the spirit of the invention.

Claims

1. A wedge-shaped tension clamp with anti-loosening function and safety structure for indirect live-line operations, characterized in that: include: The clamp body (100) has an insertion groove (110) formed in the front of the upper part along the front-rear direction. A pair of guide blocks (200) are formed at the upper front of the fixture body (100); An elastic spring (300) is provided, which is built into the insertion slot (110); A support plate (400) is placed on the upper surface of the clamp body (100) and is elastically supported forward by the elastic spring (300); A pair of wedges (500) are disposed inside the pair of guide blocks (200) and their lower parts are engaged with the support plate (400); and A double-fixed elastic pin (600) is provided through the clamp body (100) and is configured to move in the up and down direction to fix or release the pair of wedges (500) in a rearward state, and to fix or release the pair of wedges (500) in a safe structure that restricts rearward movement in a forward state.

2. The anti-electrical wire disconnection type safety structure anti-loosening wedge-shaped tension clamp with anti-electrical wire tensioning function capable of indirect live-line operation according to claim 1, characterized in that, The double-fixed resilient pin (600) includes: A pair of pins (610), which are elastically inclined laterally and outwardly as they face upward, and bulge laterally and are curved in shape to form a locking portion (612); and A retaining ring (620) through which the pair of pins (610) pass, and whose inner diameter is formed to lock the locking portion (612).

3. The anti-electrical disconnection type safety structure anti-loosening wedge-shaped tension clamp with anti-electrical wire detachment function capable of indirect live-line operation according to claim 2, characterized in that, The pin (610) includes: An anti-detachment portion (614) is formed by bending laterally and is located above the locking portion (612); and The first inclined surface (630) is formed at the upper end in such a way that it is inclined backward in the direction of upward movement.

4. The anti-electrical wire disconnection type safety structure anti-loosening wedge-shaped tension clamp with anti-electrical wire tensioning function capable of indirect live-line operation according to claim 1, characterized in that, The fixture body (100) includes a pin hole (120) that is formed through the insertion slot (110) and is formed through the vertical direction.

5. The anti-electrical disconnection type safety structure anti-loosening wedge-shaped tension clamp with anti-electrical wire detachment function capable of indirect live-line operation according to claim 2, characterized in that, The clamp body (100) includes: a pin hole (120) through which a pin hole is formed and through in the vertical direction at the rear of the insertion groove (110), and a first locking step (121) is formed on the upper part in a manner corresponding to the anti-disengagement part (614).

6. The anti-electrical wire disconnection type safety structure anti-loosening wedge-shaped tension clamp with anti-electrical wire tensioning function capable of indirect live-line operation according to claim 5, characterized in that, The pin hole (120) includes a second locking step (122), which is formed on the upper part in a manner corresponding to the retaining ring (620).

7. The anti-electrical wire disconnection type safety structure anti-loosening wedge-shaped tension clamp with anti-electrical wire tensioning function capable of indirect live-line operation according to claim 1, characterized in that, The pair of wedges (500) each include: a fixing protrusion (510) that protrudes from the lower surface and is elongated laterally. The support plate (400) includes: A guide groove (410) is formed to correspond to the fixing protrusion (510) and is built in such a way that the fixing protrusion (510) can move laterally; and A locking groove (420) is formed in front of the guide groove (410) for the upper end of the double retaining elastic pin (600) to extend into / out of.

8. The anti-electrical wire disconnection type safety structure anti-loosening wedge-shaped tension clamp with anti-electrical wire tensioning function capable of indirect live-line operation according to claim 1, characterized in that, The pair of wedges (500) each include: A guide protrusion (520) is formed on the lower surface and is elongated laterally, so that its front end is in close contact with the rear end of the support plate (400). The guide protrusion (520) includes: The second inclined surface (522) is formed such that the rear slopes backward as it faces upward.

9. A method for fixing wires using a wedge-shaped tension clamp with an anti-loosening safety structure and anti-detachment function, capable of indirect live-line operations, as described in any one of claims 1 to 5, 7, and 8, characterized in that... include: After the pair of wedges (500) are moved backward and opened, the pair of wedges (500) are fixed by double fixed elastic pins (600) in the first fixing process (S10). The wire placement process (S20) involves moving the wire (W) backward using a live wire work pole to position it between a pair of open wedges (500). The wire fixing process (S30) involves using another live-line working rod to move the lower part of the double-fixed elastic pin (600) downwards to release the fixation of the pair of wedges (500), thereby allowing the pair of wedges (500) to move automatically forward; and The second fixing process (S40) involves using a live-line work rod to move the lower part of the double-fixed elastic pin (600) upwards, thereby securing the pair of wedges (500) that are moving forward in a secure structure to prevent loosening.

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