Terminal anti-rotation clip

CN116685793BActive Publication Date: 2026-09-15HUBBELL INC
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Patent Information

Application Number
CN202280009144.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-01-06
Filing Date
2022-01-05
Publication Date
2026-09-15
Estimated Expiration
2042-01-05

AI Technical Summary

Technical Problem

然而,由于张力和硬件配置的原因,安装的终端可能会在轴线上倾斜或扭转,从而使防护装置的作用不理想或无用

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Abstract

A guard assembly is provided that includes a guard shield portion to cover a power line assembly. The power line assembly has an insulator. The guard assembly also has a clamp connected to the insulator. The guard shield portion is clamped to the clamp.
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Description

Technical Field

[0001] This disclosure relates to protective devices for use with transmission lines. More specifically, this disclosure relates to a protective device assembly having clips mounted on an insulator at a dead end. Background Technology

[0002] Terminal protection devices used with power transmission lines can unintentionally flip along the axis, rendering them ineffective as they no longer provide protection from above. Existing solutions rely on equipment to orient the protection devices by attaching pins or devices to gaps or features in the equipment. However, due to tension and hardware configuration, installed terminals may tilt or twist along the axis, rendering the protection devices ineffective or useless.

[0003] Therefore, based on this disclosure, it can be determined that there is a need for a protective device assembly that can overcome, mitigate, and / or alleviate one or more of the aforementioned and other harmful effects of prior art devices. Summary of the Invention

[0004] This disclosure provides a protective device assembly having a clip that is directly mounted to an insulator of a terminal. The end user needs to orient the clip vertically relative to the ground, regardless of the existing position of the terminal. This clip ensures proper placement of the protective device and reliable retention of the clip itself.

[0005] A protective device assembly is provided, comprising a protective cover portion for covering a power transmission line assembly. The power transmission line assembly has an insulator. The protective device assembly also includes a clamp connected to the insulator. The protective cover portion is clamped onto the clamp.

[0006] A method for installing a protective device assembly is also provided, the method comprising: attaching a clip to an insulator of a transmission line and pivoting the clip to ensure that the clip is tightened in a vertical orientation; and attaching a protective cover portion to the clip to overlap with a portion of the insulator.

[0007] A protective device assembly is also provided, comprising: a power transmission line assembly having an insulator and a conductor connected to a terminal clamp; a clamp connected to the insulator; a first protective cover portion connected to the clamp; and a second protective cover portion connected to the first protective cover portion to cover the power transmission line assembly.

[0008] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has a fixed jaw and a movable jaw that are movable relative to each other to accommodate different sizes of insulators.

[0009] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has a bolt passing through a fixed jaw and a movable jaw, and the bolt is rotatable to move the fixed jaw and the movable jaw relative to each other.

[0010] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has: a first jaw face that engages in a fixed jaw; and a second jaw face that engages in a movable jaw such that the first jaw face is opposite to the second jaw face.

[0011] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the fixed jaws have grooves with edge walls formed on opposite sides of the grooves, and the movable jaws have grooves on opposite sides of the slider, the slider being able to move within the grooves.

[0012] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the fixed jaw has a threaded opening, the movable jaw has a threaded opening, and the bolt has a thread that engages with the threads of the openings in the fixed jaw and the openings in the movable jaw.

[0013] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the protective cover portion is a first protective cover portion and a second protective cover portion, and the dimensions of the first protective cover portion and the second protective cover portion are adapted to fit over the power line assembly including the terminal clip.

[0014] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the protective cover portion is a first protective cover portion and a second protective cover portion, and the dimensions of the first protective cover portion and the second protective cover portion are adapted to fit over the power transmission line assembly including the wedge.

[0015] In some embodiments, whether alone or together with any one or more of the foregoing and / or following embodiments, the clip is made of a thermoplastic compound.

[0016] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the shield portion is a first shield portion, and further includes connecting a second shield portion to the first shield portion.

[0017] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clip is attached to the insulator between the first canopy and the wedge.

[0018] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has a fixed jaw and a movable jaw that are movable relative to each other to accommodate different sizes of insulators, and further includes moving the fixed jaw and the movable jaw closer to each other to attach the clamp to the insulator.

[0019] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has a fixed jaw and a movable jaw, the fixed jaw and the movable jaw being movable relative to each other to accommodate different sizes of insulators, the fixed jaw having a threaded opening, the movable jaw having a threaded opening, a bolt having threads that engage with the threads of the openings in the fixed jaw and the movable jaw, and further comprising rotating the bolt to move the fixed jaw and the movable jaw closer to each other, thereby attaching the clamp to the insulator.

[0020] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has a fixed jaw and a movable jaw that are movable relative to each other to move closer to each other, thereby connecting to the insulator.

[0021] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has a bolt passing through a fixed jaw and a movable jaw, wherein the bolt is rotatable to move the fixed jaw and the movable jaw relative to each other.

[0022] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the clamp has: a first jaw face that engages in a fixed jaw; and a second jaw face that engages in a movable jaw such that the first jaw face is opposite to the second jaw face to contact an insulator.

[0023] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the fixed jaws have grooves with edge walls formed on opposite sides of the grooves, and the movable jaws have grooves on opposite sides of the slider, the slider being able to move within the grooves.

[0024] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the fixed jaw has a threaded opening, the movable jaw has a threaded opening, and the bolt has a thread that engages with the threads of the openings in the fixed jaw and the openings in the movable jaw.

[0025] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the bolt is a torque bolt with a necking region that breaks off when a predetermined tension is applied during the installation of the protective device assembly.

[0026] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the torque bolt has a hexagonal head above the necking region and a ring below the contraction region.

[0027] In some embodiments, whether alone or together with any one or more of the embodiments described above and / or below, the bolt is a captive shear bolt assembly having a shear portion that breaks off when a predetermined tension is applied during installation of the protective device assembly, and the upper head or stud remains connected to the remainder of the captive shear bolt assembly when the shear portion is cut off.

[0028] In some embodiments, whether alone or together with any one or more of the foregoing and / or following embodiments, the pin passes through the opposing walls of the first protective cover portion and the second protective cover portion.

[0029] Those skilled in the art will appreciate and understand the above and other features and advantages of this disclosure from the following detailed description, drawings and appended claims. Attached Figure Description

[0030] Figure 1 This is a front perspective view of an exemplary embodiment of the protective device assembly disclosed herein, which is mounted on a power transmission line assembly, and the first and second protective cover portions of the protective device are shown as transparent. Figure 2 yes Figure 1 Exploded rear-view perspective view of the protective device components; Figure 3 yes Figure 1Top-view perspective of the clamping jaws of the protective device component; Figure 4 yes Figure 1 Top-view perspective of the movable jaws of the clamp in the protective device component; Figure 5 yes Figure 1 A bottom-view perspective view of the jaws of the clamps in the protective device assembly; Figure 6 yes Figure 1 Top-view perspective of the bolts of the clamps in the protective device assembly; Figure 7 yes Figure 1 A top-view perspective view of the clamps of the protective device components; Figure 8 yes Figure 1 Side view of the clip of the protective device assembly; Figure 9 yes Figure 1 Front view of the clip of the protective device component; Figure 10 yes Figure 1 A top view of the clips of the protective device components; Figure 11 It is installed on the power transmission line. Figure 1 A bottom view of the protective device assembly, which consists of... Figure 1 The modified version is shown with the first and second protective shield portions of the protective device being transparent. Figure 12 yes Figure 1 A bottom view of the protective device assembly, in which the first and second protective shield portions are shown as transparent; Figure 13 It is installed on the power transmission line. Figure 1 A bottom view of the protective device assembly, which consists of... Figure 1 The modified version is shown with the first and second protective shield portions of the protective device being transparent. Figure 14 yes Figure 1 Enlarged and partial top-view 3D diagrams of the protective device components; Figure 15 yes Figure 1 An enlarged partial side view of the protective device components; Figure 16 yes Figure 1 The protective device component's clamp is shown in front and top perspective views, and the clamp has been modified to include a torque bolt. Figure 17 yes Figure 16 Rear and top-view 3D views of the clip; Figure 18 yes Figure 16 A cross-sectional view of the rear side of the clip; Figure 19 yes Figure 16 Rear and low perspective views of the clamps being installed on the insulators using hot sticks; Figure 20 This is an example of a capture-type shear bolt assembly; Figure 21 yes Figure 20 The cross-sectional view of the example capture shear bolt assembly shown; Figure 22 and Figure 23 yes Figure 20 An exploded view of the example capture shear bolt assembly shown; Figure 24 This is another example of a capture-type shear bolt assembly; Figure 25 yes Figure 24 The cross-sectional view of the example capture shear bolt assembly shown; Figure 26 yes Figure 24 An exploded view of the example capture shear bolt assembly shown; Figure 27 This is another example of a capture-type shear bolt assembly; Figure 28 yes Figure 27 The cross-sectional view of the example capture shear bolt assembly shown; Figure 29 yes Figure 27 An exploded view of the example capture shear bolt assembly shown; Figure 30 yes Figure 1 Rear and top perspective views of the protective device assembly, which has been modified to include a pin and the pin is connected. Figure 31 yes Figure 30 An exploded perspective view of the protective device components, showing that the pins are not connected; and Figure 32 yes Figure 30 A partial lateral cross-sectional view of the protective device assembly, showing the pins already connected. Detailed Implementation

[0031] Refer to the attached diagram, especially Figure 1This illustration shows an exemplary embodiment of a protective device assembly according to the present disclosure, generally indicated by reference numeral 10. The protective device assembly 10 is mounted at the terminal of a power transmission line assembly 100. The power transmission line assembly 100 has a conductor 101 connected to a terminal clamp 102, both of which are energized. The terminal clamp 102 is, for example, a bolted shoe-shaped member (such as...). Figure 1 (As shown) or a wedge. Terminal clip 102 connects conductor 101 to insulator 104 having shed 106. Protective device assembly 10 has a first protective cover portion 12, a second protective cover portion 14, and clip 200. Alternatively, clip 200 can be used without the first protective cover portion 12 and the second protective cover portion 14. Another option includes the first protective cover portion 12 and the second protective cover portion 14, which can be a single piece. For example, the first protective cover portion 12 and the second protective cover portion 14 are not two separate halves, but a large protective device (the sum of the two halves). Although a single protective body combining the first protective cover portion 12 and the second protective cover portion 14 is a reasonable choice to provide protection, it may have limitations. Conductors (such as conductor 101) exiting downwards from the terminal clip (e.g., terminal clip 102) can use solid single or two-piece protective devices. However, conductors (such as conductor 101) moving upwards away from the terminal clip (e.g., terminal clip 102) can only be protected using a two-piece protective device (e.g., a first protective shield portion 12 and a second protective shield portion 14). Reference Figure 12 The first protective cover portion 12 has a first ring 43 and the second protective cover portion 14 has a second ring 45. These rings are respectively heat rod rings, which allow suspension above the equipment (e.g., power line assembly 100) for positioning together with another attachment point, thereby pushing down onto the equipment if necessary / advantageous.

[0032] Advantageously, the protective device assembly 10 has a clip 200 that is directly mounted on the insulator 104 of the terminal of the transmission line assembly 100. Regardless of the existing location of the terminal of the transmission line 100, the end user needs to position the clip 200 vertically relative to the ground below. The clip 200 ensures the correct placement of the first protective cover portion 12 and the second protective cover portion 14 and provides them with a secure hold with the clip 200 itself.

[0033] refer to Figure 2The protective device assembly 10 has a first protective cover portion 12, a second protective cover portion 14, and a clip 200. The first protective cover portion 12 is formed to cover part of the terminal of the power transmission line assembly 100. The first protective cover portion 12 has a first side opening 16, a first intermediate opening 18, and a first open bottom 21. The second protective cover portion 14 is formed to cover another part of the terminal of the power transmission line assembly 100. The second protective cover portion 14 has a second side opening 22, a second intermediate opening 24, and a second open bottom 26. The first protective cover portion 12 and the second protective cover portion 14 are made of a material such as a thermoplastic compound.

[0034] The clamp 200 has a fixed jaw 202, a movable jaw 204, a bolt 206, and two jaw faces 208. The fixed jaw 202 is made of a material such as a thermoplastic compound. The movable jaw 204 is made of a material such as a thermoplastic compound. The bolt 206 is made of a material such as a thermoplastic compound. The jaw faces 208 are made of a material such as a thermoplastic compound.

[0035] refer to Figure 3 The fixed jaw 202 has a top member 210 and a bottom member 212, forming an inverted L-shape. The top member 210 has an opening 214 that passes through both the top member 210 and the bottom member 212. The opening 214 may be threaded. The top member 210 has a recess 211 shaped to receive the jaw face 208. The bottom member 212 has a groove 216, thereby forming edge walls 215, 217 (…). Figure 9 ).

[0036] refer to Figure 4 The movable jaw 204 has a jaw body 218. The jaw body 218 has a recess 220, thus having a protruding side 222 and a receiving side 224. The protruding side 222 is shaped to receive the jaw surface 208. The receiving side 224 has an opening 226, allowing a bolt 206 to pass through the movable jaw 204. The receiving side 224 may have threads in the opening 226. The receiving side 224 has grooves 225, 227, thus forming a slider 229.

[0037] refer to Figure 5The jaw face 208 has a face body 228. The face body 228 has a mating portion 230, which is shaped to be received in the recess 211 of the fixed jaw 202 or the recess 220 of the movable jaw 204. The jaw face 208 has an insulator receiving side 232 opposite to the mating portion 230, which is shaped to clamp the insulator 104. The jaw face 208 can be removed from the fixed jaw 202 and the movable jaw 204 and replaced with other jaw faces of different diameters or materials to provide greater or less friction. The jaw face 208 may have rubber teeth to assist in gripping the insulator 104.

[0038] refer to Figure 6 Bolt 206 has a bolt body 234. Bolt body 234 has a mating portion 236. The mating portion 236 may have threads 235, such as... Figure 9 As shown. The bolt body 234 has a stop ridge 238. The bolt body 234 has a ring ridge 240 and a ring 242.

[0039] refer to Figures 7 to 10 The clamp 200 has two jaw surfaces 208. One jaw surface 208 is engaged with a movable jaw 204, for example, in a recess 220. The other jaw surface 208 is engaged with a fixed jaw 202, for example, in a recess 211. (See reference) Figure 9 The edge walls 215 and 217 of the fixed jaw 202 respectively fit into one of the grooves 225 and 227 of the movable jaw 204, such that the slider 229 extends from the groove 216 on the side of the edge walls 215 and 217 opposite to the side facing the jaw surface 208. The slider 229 is larger than the groove 216 to retain the movable jaw 204 within the groove 216. The mating portion 236 of the bolt 206 passes through the opening 214 of the fixed jaw 202 and through the opening 226 of the movable jaw 204. The thread in the opening 214 of the fixed jaw 202 engages with the thread 235 of the mating portion 236 of the bolt 206. The thread in the opening 226 of the movable jaw 204 engages with the thread 235 of the mating portion 236 of the bolt 206. The movable jaw 204 rests against the stop ridge 238.

[0040] During operation, when bolt 206 rotates in the first direction, bolt 206 moves along... Figure 8 The bolt 206 moves in direction A, causing the ridge 238 of the bolt 206 to move along direction A. This moves the movable jaw 204 so that the protruding side 222 of the movable jaw 204 moves closer to the top member 210 of the fixed jaw 202, thereby bringing the two jaw faces 208 closer together. When the bolt 206 rotates in a second direction opposite to the first direction, the bolt 206 moves along... Figure 9The bolt 206 moves in direction B, causing the ridge 238 of the bolt 206 to move the movable jaw 204 in direction B, so that the protruding side 222 of the movable jaw 204 moves away from the top member 210 of the fixed jaw 202, thereby causing the two jaw faces 208 to move further apart. When the bolt 206 rotates in the first or second direction, the slider 229 moves in the groove 216 in directions A and B to maintain the connection and alignment between the fixed jaw 202 and the movable jaw 204.

[0041] refer to Figure 12 To install the protective device assembly 10, line workers can use a heat pipe with the protective device assembly 10 attached. The clamp 200 is attached to the insulator 104, and regardless of the equipment position of the transmission line 100, the clamp 200 pivots to ensure it is tightened in a vertical orientation relative to the ground below. The clamp 200 is tightened in a vertical orientation onto the insulator 104 by positioning the clamp 200 between the first cantilever portion 106a and the terminal clamp 102, and placing the fixed jaws 202 and the movable jaws 204 around the insulator 104, such that the bolt 206 is then rotated in a first direction to allow the bolt 206 to move along... Figure 8 The bolt 206 moves in direction A, and the ridge 238 of the bolt 206 moves the movable jaw 204 in direction A, causing the protruding side 222 of the movable jaw 204 to move closer to the top member 210 of the fixed jaw 202, thereby bringing the two jaw faces 208 closer together and connecting the clamp 200 to the insulator 104. As the bolt 206 rotates in the first direction, the slider 229 moves in the slot 216 in direction A to maintain the connection and alignment between the fixed jaw 202 and the movable jaw 204. A heating rod can be inserted into the ring 242 for rotation. (Reference) Figure 14The first protective cover portion 12 is then overlapped and mounted on the first sheath 106a of the insulator 104. Alternatively, the first protective cover portion 12 may cover the portion of the insulator 104 excluding the first sheath 106a. The first protective cover portion 12 has four clamping portions 20, such that two of the four clamping portions 20 can be positioned on each side of the clamp 200 to clamp the first protective cover portion 12 onto the clamp 200 by engagement. The first protective cover portion 12 is pressed downward in direction B such that each of the inclined clamping portions 20 contacts the clamp 200, causing the opposite sides 30, 32 of the first protective cover portion 12 to move away from each other, thereby deforming the first protective cover portion 12 outward on the clamp 200 until each of the clamping portions 20 is located below the clamp 200, thereby moving the opposite sides of the first protective cover portion 12 closer together, and positioning the clamping portions 20 below the clamp 200, thus connecting the first protective cover portion 12 to the clamp 200. Once the first protective shield portion 12 and the clamp 200 are connected, space can exist between the clamp portion 20 and the movable jaw 204 to allow limited movement between them. (Reference) Figure 14 and Figure 15 The first protective cover portion 12 has an alignment protrusion 28. The alignment protrusion 28 has a central surface 34 and inclined surfaces 36, 38 located on opposite sides of the central surface 34. The inclined surfaces 36, 38 restrict horizontal movement of the clamp 200 during connection of the first protective cover portion 12 with the clamp 200, assisting in positioning the first protective cover portion 12 onto the clamp 200 during installation. A space can be formed between the central surface of the alignment protrusion 28 and the portion of the bolt 206 extending out of the retaining jaw 202 to allow movement of the bolt 206 relative to the retaining jaw 202, thereby moving the movable jaw 204. The second protective cover portion 14 then overlaps with and is clamped within the first protective cover portion 12. Alternatively, depending on the configuration of the power transmission assembly 100, different forms of the second protective cover portion 14 may be available, which will overlap with and be clamped within the first protective cover portion 12.

[0042] refer to Figure 11 The protective device assembly 10 can accommodate the modified power transmission line assembly 100a, which serves as a wedge assembly. (See reference) Figure 13 The protective device assembly 10 can accommodate a modified power transmission line assembly 100b as another wedge assembly.

[0043] The protective device assembly 10 is now a three-part assembly that can accommodate various devices while ensuring proper coverage. The clip 200 is attached to the insulator 104 immediately before the terminal clip 102 or other terminal clips, boot-shaped clips, or wedge assemblies. The protective device assembly 10 features user-friendly installation and removal, mimicking the existing working method of typical hot wire clips. The clip 200 is characterized by a jaw face 208 that allows for insulators 104 of various diameters while providing a secure grip.

[0044] Clip 200 mimics the action of a typical thermocouple clip. Clip 200 is a plier-like device made of polymer that clamps onto the end of the terminal insulator 104 just before the terminal clip 102. This allows the end user to tighten clip 200 in a vertical orientation to ensure proper protective coverage. Protective device assembly 10 is mounted on top of clip 200 and engages in place via internal hooks on the first protective cover portion 12. This design arose from the realization that there are too many variations in terminal clips (such as boot-shaped pieces and wedges) to create a universal protective device. The most consistent element is the insulator 104, but it does not provide a solid feature to ensure vertical orientation (due to its cylindrical profile). Protective device assembly 10 with clip 200 provides this guarantee of vertical orientation.

[0045] refer to Figure 16 and Figure 17 Clip 200 can be modified to clip 1600. Clip 1600 is the same as clip 200, except that clip 1600 includes a torque bolt 1606 instead of bolt 206; therefore, identical features of clips 200 and 1600 use the same reference numerals. (Reference) Figure 18 The torque bolt 1606 has a bolt body 1634. The bolt body 1634 has a mating portion 1636. The mating portion 1636 may have threads 1635. The bolt body 1634 has a stop ridge 1638. The bolt body 1634 has a ring ridge 1640 and a ring 1642. A hexagonal head 1644 is located below the ring ridge 1640. A necking region 1646 is located immediately above the ring 1642 and immediately below the hexagonal head 1644. The torque bolt 1606 is made of materials such as thermoplastic compounds, aluminum, aluminum alloys, and any combination thereof.

[0046] The mating portion 1636 of bolt 1606 passes through the opening 214 of the fixed jaw 202 and the opening 226 of the movable jaw 204. The thread in the opening 214 of the fixed jaw 202 mates with the thread 1635 of the mating portion 1636 of bolt 1606. The thread in the opening 226 of the movable jaw 204 mates with the thread 1635 of the mating portion 1636 of bolt 206. The movable jaw 204 rests against the stop ridge 1638.

[0047] refer to Figure 18 and Figure 19 During operation, line workers can use a heat pipe 1900 to install the clamp 1600. The clamp 1600 is attached to the insulator 104, and regardless of the equipment position of the transmission line 100, the clamp 1600 pivots to ensure it is tightened in a vertical orientation relative to the ground below. The clamp 1600 is tightened in a vertical orientation onto the insulator 104 by positioning the clamp 1600 between the first cantilever portion 106a and the terminal clamp 102, and placing the fixed jaws 202 and the movable jaws 204 around the insulator 104, such that the torque bolt 1606 is then rotated in a first direction to cause the bolt 1606 to move along... Figure 18 The bolt 1606 moves in direction A, and the ridge 1638 of the bolt 1606 moves the movable jaw 204 in direction A, causing the protruding side 222 of the movable jaw 204 to move closer to the top member 210 of the fixed jaw 202, thereby bringing the two jaw faces 208 closer together and connecting the clamp 1600 to the insulator 104. As the bolt 206 rotates in the first direction, the slider 229 moves in the slot 216 in direction A to maintain the connection and alignment between the fixed jaw 202 and the movable jaw 204. A heating rod can be inserted into the ring 1642 for rotation. Once a predetermined amount of tension is applied to the clamp 1600, the torque bolt 1606 breaks along the necking region 1646, causing the ring 1642 to break from the hexagonal head 1644. This ensures sufficient tension is applied to the entire clamp and eliminates the risk of overtightening. A hex head 1644 is included as a spare to allow the removal of the clamp 1600 after the ring 1642 has been cut: by rotating the hex head 1644, the torque bolt 1606 is moved in a second direction opposite to the first direction, causing the bolt 1606 to move along... Figure 18 The bolt 1606 moves in direction B, causing the ridge 1638 of the bolt 1606 to move the movable jaw 204 in direction B, so that the protruding side 222 of the movable jaw 204 moves away from the top member 210 of the fixed jaw 202, thereby further separating the two jaw faces 208. The clamp 1600 is connected to the first protective cover portion 12 in the same way as the clamp 200 and the first protective cover portion 12 are connected. Then, the second protective cover portion 14 can be connected to the first protective cover portion 12 as described herein. Similar to the clamp 200, the clamp 1600 can be used without the first protective cover portion 12 and the second protective cover portion 14, or the first protective cover portion 12 and the second protective cover portion 14 can be a single piece.

[0048] The two jaw faces 208 can be made of a material with a Shore A hardness of 80. The fixed jaw 202 and the movable jaw 204 can be made of, for example, glass-filled acetal or glass-filled polybutylene terephthalate.

[0049] Therefore, the clamp 1600, including the torque bolt 1606, provides sufficient tension to be applied throughout the clamp 1600 and eliminates the risk of overtightening. The hex head 1644 also provides a spare part that allows the clamp 1600 to be removed after the ring 1642 is cut.

[0050] Figures 20 to 23 An example capture-type shear bolt assembly 100' that can be used with clamp 1600 is described, replacing the torque bolt 1606 in a modified clamp 1600. Thus, the modified clamp 1600 is identical to the unmodified clamp 1600, except that it uses the capture-type shear bolt assembly 100' instead of the torque bolt 1606. The capture-type shear bolt assembly 100' is identical to the capture-type shear bolt assembly 100 of U.S. Patent Application Serial No. 16 / 582,532, filed September 25, 2019, except that the capture-type shear bolt assembly 100' adds a stop ridge 138' for the movable jaw 204 to rest against, which is incorporated herein by reference. The stop ridge 138' is identical to the stop ridge 1638 of the torque bolt 1606.

[0051] An exemplary capture-type shear bolt assembly 100' may include a bolt 110', a cap nut 120', and a screw 130'. Bolt 110' may include a head 112', a shank 114', and a stud 115'. Head 112' may be hexagonal. Head 112' may define a top surface 122' and a bottom surface 123'. Stud 115' may extend from the top surface 122'. Shank 114' may extend from the bottom surface 123'. Shank 114' may include a shoulder 116', a threaded portion 118', a non-threaded portion 124', and a protrusion 128'. Shoulder 116' may be located between the bottom surface 123' and the threaded portion 118' of head 112'. Threaded portion 118' may be located between shoulder 116' and non-threaded portion 124'. Non-threaded portion 124' may have a first cross-sectional area that is less than or equal to the small diameter of threaded portion 118'. The protrusion 128' may define the distal end 126' of the shank 114'. The protrusion 128' may have a second cross-sectional area that is smaller than the first cross-sectional area of ​​the threaded portion 118'. The protrusion 128' may be configured to receive a locking washer or a retaining ring. For example, a retaining ring may be mounted on the protrusion 128' radially or axially.

[0052] Bolt 110' may define cavity 140'. Cavity 140' may be located (e.g., centered) at the axis of rotation 160' of bolt 110'. Cavity 140' may extend through bolt 115' and head 112'. Cavity 140' may extend partially into shank 114'. Cavity 140' may be configured to receive screw 130'. For example, cavity 140' may include internal thread 146'. The internal thread 146' of cavity 140' may begin after shear portion 142'.

[0053] The stud 115' may have threads. For example, the stud 115' may include an external thread 144'. The stud 115' may define a shearing portion 142'. The shearing portion 142' may be located between the top surface 122' of the head 112' and the external thread 144'. The shearing portion 142' may define a tapered cross-section having a first diameter at the top surface 122' of the head 112' and a second diameter at the origin of the external thread 144'. The first diameter may be larger than the second diameter. The shearing portion 142' may be configured to be cut off at or above a threshold torque. For example, the second diameter may be determined based on the threshold torque.

[0054] The cap nut 120' may be hexagonal (e.g., a hexagonal cap nut). The cap nut 120' may define an orifice 150' on its top surface 152'. The orifice 150' may be configured to receive a screw 130'. For example, the orifice may receive one or more threads 132' and / or the head 134' of the screw 130. The cap nut 120' may include internal threads that allow it to be screwed onto a stud 115'. When the cap nut 120' is screwed onto the stud 115', the orifice 150' may be aligned with a cavity 140', allowing the screw 130' to be installed through the orifice 150' into the cavity 140'.

[0055] The screw 130' may include threads 132' and a head 134'. The head 134' may define a recessed drive hole 136'. The recessed drive hole 136' may be configured to receive a hexagonal (e.g., Allen wrench) drive element.

[0056] A cap nut 120' can be screwed onto a bolt 110'. For example, the cap nut 120' can be screwed onto the external thread 144' of a stud 115'. A screw 130' can be inserted into a cavity 140' through a hole 150'. A capture-type shear bolt assembly 100' can be configured to be driven at the cap nut 120'. When torque is applied to the cap nut 120', the capture-type shear bolt assembly 100' can rotate such that when the fixed jaws 202 and the movable jaws 204 are positioned around the insulator 104, the capture-type shear bolt assembly 100' then rotates in a first direction such that the capture-type shear bolt assembly 100' moves along... Figure 18 The movable jaw 204 moves in direction A, and the stop ridge 138' of the capture-type shear bolt assembly 100' moves in direction A, causing the protruding side 222 of the movable jaw 204 to move closer to the top member 210 of the fixed jaw 202, thereby bringing the two jaw faces 208 closer together, and connecting the modified clamp 1600 to the insulator 104. When the applied torque exceeds a threshold torque, the shear portion 142' of the stud 115' can be cut off, thereby mechanically separating the cap nut 120' and the stud 115' from the threaded portion 118' of the bolt. For example, when the shear portion 142' is cut off, the cap nut 120' can no longer drive the threaded portion 118' of the bolt 110'. When the shear portion 142' of the stud 115' is cut off, the screw 130' can capturely secure the cap nut 120' and the stud 115' to the bolt 110'. For example, screw 130' can engage with the threads in the head 112' portion of cavity 140'. Similar to torque bolt 1606, once a predetermined amount of tension is applied to the modified clamp 1600, the capture shear bolt assembly 100' disconnects along the shear portion 142'. This ensures sufficient tension is applied to the entire clamp 1600 and eliminates the risk of overtightening.

[0057] Figures 24 to 26Another example of a capture-type shear bolt assembly 300 is described, which can be used with a clip 1600 instead of a torque bolt 1606 in a modified clip 1600. Thus, the modified clip 1600 is identical to the unmodified clip 1600, except that it uses the capture-type shear bolt assembly 300 instead of the torque bolt 1606. The capture-type shear bolt assembly 300 is identical to that of U.S. Patent Application Serial No. 16 / 582,532, filed September 25, 2019, except that the capture-type shear bolt assembly 300 adds a stop ridge 338 for the movable jaws 204 to rest upon, which is incorporated herein by reference. The stop ridge 338 is identical to the stop ridge 1638 of the torque bolt 1606.

[0058] An example capture-type shear bolt assembly 300 may include a bolt 310, a shear coupling 315, and a screw 330. The bolt 310 may include a head 312 and a shank 314. The head 312 may be hexagonal. The head 312 may define a top surface 322 and a bottom surface 323. The shank 314 may extend from the bottom surface 323. The shank 314 may include a shoulder 316, a threaded portion 318, a non-threaded portion 324, and a protrusion 328. The shoulder 316 may be located between the bottom surface 323 of the head 312 and the threaded portion 318. The threaded portion 318 may be located between the shoulder 316 and the non-threaded portion 324. The non-threaded portion 324 may have a first cross-sectional area that is less than or equal to the small diameter of the threaded portion 318. The protrusion 328 may define a distal end 326 of the shank 314. The protrusion 328 may have a second cross-sectional area that is smaller than the first cross-sectional area of ​​the threaded portion 318. The protrusion 328 may taper from the shank 314 to the distal end 326. The protrusion 328 may be configured to receive a retainer (e.g., a retaining ring and / or a locking washer).

[0059] The shearing connector 315 may define an upper head 320, a lower head 325, and a shearing portion 342. The upper head 320 and / or the lower head 325 may be hexagonal in shape. For example, the upper head 320 may be a first hexagonal nut, and the lower head 325 may be a second hexagonal nut. The upper head 320 and the lower head 325 may be connected via the shearing portion 342. The upper head 320 may be configured to receive external torque. The shearing portion 342 may define a tapered cross-section having a first diameter at the upper head 320 and a second diameter at the lower head 325. The first diameter may be larger than the second diameter. The shearing portion 342 may be configured to cut off at or above a threshold torque. For example, one or more of the second diameter, material, and / or thickness of the shearing portion 342 may be determined based on the threshold torque.

[0060] The shearing connector 315 may define an orifice 350. The orifice 350 may extend through the upper head 320, the shearing portion 342, and the lower head 325. For example, the orifice 350 may begin at the top surface 352 of the upper head 320 and end at the bottom surface 354 of the lower head 325. The orifice 350 may be configured to receive a screw 330. For example, the orifice may receive one or more threads 332 of the screw 330 and / or the head 334 of the screw 330.

[0061] Bolt 310 may define cavity 340. Cavity 340 may be located (e.g., centered) at the axis of rotation 360 of bolt 310. Cavity 340 may extend through head 312. Cavity 340 may extend partially into shank 314. Cavity 340 may define top portion 344 and bottom portion 348. Top portion 344 may be hexagonal. For example, top portion 344 may be configured to receive lower head 325 of shear connector 315. Top portion 344 may be configured such that torque applied to shear connector 315 (e.g., upper head 320 of shear connector 315) is transferred to bolt 310. Cavity 340 may be configured to receive screw 330. For example, cavity 340 may include internal thread 346 (e.g., concave thread). Internal thread 346 of cavity 340 may begin after shear portion 342. When the shear connector 315 is inserted into the head 312, the orifice 350 can be aligned with the cavity 340, so that the screw 330 can be installed in the cavity 340 through the orifice 350.

[0062] Screw 330 may include threads 332 and a head 334. Head 334 may define a drive recess 336. Head 334 may be a Philips type (e.g., Phillips head) screw head. For example, drive recess 336 may be configured to receive a Philips head drive. Although, as shown, drive recess 336 may be configured to receive a Philips head drive, head 334 may be configured to receive another type of drive. For example, head 334 may be configured to receive a flat head drive, a Torx drive, a square drive, a hexagonal drive, etc.

[0063] The shearing coupling 315 can be inserted into the cavity 340. For example, the lower head 325 of the shearing coupling 315 can be inserted into the top portion 344 of the cavity 340. The screw 330 can be inserted into the cavity 340 through a hole 350 in the shearing coupling 315. The thread 332 of the screw 330 can engage with the internal thread 346 in the bottom portion 348 of the cavity 340. The capture-type shear bolt assembly 300 can be configured to be driven at the shearing coupling 315 (e.g., the upper head 320 of the shearing coupling 315). When torque is applied to the upper head 320, the capture-type shear bolt assembly 300 can rotate because the threaded portion 318 engages with complementary threads (i.e., the threads in the opening 214 of the fixed jaw 202 and the threads in the opening 226 of the movable jaw 204), such that when the fixed jaw 202 and the movable jaw 204 are positioned around the insulator 104, the capture-type shear bolt assembly 300 then rotates in a first direction, causing the capture-type shear bolt assembly 300 to move along... Figure 18 The movable jaw 204 moves in direction A, and the stop ridge 338 of the capture shear bolt assembly 300 moves in direction A, causing the protruding side 222 of the movable jaw 204 to move closer to the top member 210 of the fixed jaw 202, thereby bringing the two jaw faces 208 closer together and connecting the modified clamp 1600 to the insulator 104. When the applied torque exceeds a threshold torque, the shearing portion 342 of the shearing coupling 315 can be cut off, thereby mechanically separating the upper head 320 from the threaded portion 318 of the bolt 310. For example, when the shearing portion 342 is cut off, the upper head 320 can no longer drive the threaded portion 318 of the bolt 310. When the shearing portion 342 of the shearing coupling 315 is cut off, the screw 330 can capturely secure the upper head 320 to the bolt 310. For example, screw 330 can engage with the internal thread 346 in the bottom portion 34 of cavity 340, such that the shearing coupling 315 remains connected to bolt 310 after the shearing portion 342 is cut off. Similar to torque bolt 1606, once a predetermined amount of tension is applied to the modified clamp 1600, the capture shear bolt assembly 300 disengages along the shearing portion 342. This ensures sufficient tension is applied to the entire clamp 1600 and eliminates the risk of overtightening.

[0064] The capture-type shear bolt assembly 300 can be configured for reuse. For example, when the shearing portion 342 has been cut, the screw 330 can be removed, thereby allowing the shearing connector 315 to be removed. A replacement shearing connector can be installed, thus enabling the capture-type shear bolt assembly 300 to be reused.

[0065] Figures 27 to 29Another example of a capture-type shear bolt assembly 500 is described, which can be used with a clip 1600 in place of a torque bolt 1606 in a modified clip 1600. Thus, the modified clip 1600 is identical to the unmodified clip 1600, except that it uses the capture-type shear bolt assembly 500 instead of the torque bolt 1606. The capture-type shear bolt assembly 500 is identical to that of U.S. Patent Application Serial No. 16 / 582,532, filed September 25, 2019, except that the capture-type shear bolt assembly 500 adds a stop ridge 538 for the movable jaws 204 to rest upon, which is incorporated herein by reference. The stop ridge 538 is identical to the stop ridge 1638 of the torque bolt 1606.

[0066] An example capture-type shear bolt assembly 500 may include a bolt 510 and a shear coupling 515. The bolt 510 may include a head 512, an extension 513, and a shank 514. For example, the head 512 may be hexagonal. The head 512 may define a top surface 522 and a bottom surface 523. The extension 513 may be cylindrical, as shown. The top surface 522 may be cylindrical, hexagonal, or other shapes. The extension 513 may define a cavity 508. The shank 514 may extend from the bottom surface 523. The shank 514 may include a shoulder 516, a threaded portion 518, and a non-threaded portion 524. The shoulder 516 may be located between the bottom surface 523 of the head 512 and the threaded portion 518. The shank 514 may define a recess 517 located between the shoulder 516 and the threaded portion 518. The recess 517 may be configured such that the bolt 510 is retained within the tap joint, as described herein. For example, groove 517 can be configured to receive a retaining ring (not shown). Threaded portion 518 can be located between shoulder 516 and unthreaded portion 524. The cross-sectional area of ​​unthreaded portion 524 can be less than or equal to the small diameter of threaded portion 518. Unthreaded portion 524 can be configured to receive a fastener. For example, shank 514 can define cavity 521. Cavity 521 can extend a distance L1 from distal end 526 of unthreaded portion 524 into shank 514 and can include internal thread 519. Cavity 521 and internal thread 519 can begin at distal end 526 of unthreaded portion 524. Cavity 521 and / or internal thread 519 can extend into threaded portion 518 of unthreaded portion 524 and shank 514.

[0067] A shearing connector 515 may define an upper head 520, a lower head 525, and a shearing portion 542. The upper head 520 and / or the lower head 525 may be hexagonal. For example, the upper head 520 may be a first hexagonal nut, and the lower head 525 may be a second hexagonal nut. The upper head 520 and the lower head 525 may be connected via the shearing portion 542. The upper head 520 may be configured to receive an external torque. The shearing connector may be configured to transmit the external torque to the bolt 510, such that when an external torque is applied to the upper head 520, the bolt 510 rotates about its axis of rotation. The shearing portion 542 may define a tapered cross-section having a first diameter at the upper head 520, a second diameter at the lower head 525, and a third diameter at the midpoint between the upper head 520 and the lower head 525. The first and second diameters may be equal. The shearing portion 542 may be configured to cut off at or above a threshold torque. For example, one or more of the third diameter, material, and / or thickness of the shear portion 542 can be determined and / or configured based on the threshold torque.

[0068] The shearing connector 515 can be configured to receive the extension 513 and the head 512. For example, the shearing connector 515 can define an orifice 509. The orifice 509 can extend through the upper head 520, the shearing portion 542, and the lower head 525. For example, the orifice 509 can begin at the top surface 552 of the upper head 520 and end at the bottom surface 554 of the lower head 525. The orifice 509 can be configured to receive the head 512. For example, the orifice 509 can be hexagonal within the lower head 525, so that the head 512 is received within the orifice 509. The lower head 525 can transmit external torque to the head 512 of the bolt 510. The orifice 509 can have different shapes and / or sizes within the shearing connector 515. Within the upper head 520, the shape of the orifice 509 can be similar to that of the extension 513, so that the extension 513 is received within the orifice 509. For example, the orifice 509 can be cylindrical within the upper head 520.

[0069] The shearing connector 515 and the extension 513 can be configured such that the shearing connector 515 can be tooled onto the bolt 510. For example, the extension 513 can extend over the upper inner surface 541 of the upper head 520. The upper inner surface 541 can be a shoulder defined within the orifice 509. A tool (e.g., a punch) can be used to deform the upper portion of the extension 513, thereby extending the upper portion 507 onto (e.g., partially extending) the upper inner surface 541 of the upper head 520. For example, the tool can be forcibly inserted into the cavity 508. The tool can be tapered such that the further the tool is inserted into the cavity 508, the greater the deformation of the upper portion 507. The deformed upper portion 507 of the extension 513 can be configured to retain the shearing connector 515 onto the bolt 510. For example, the deformed upper portion 507 of the extension 513 can be configured to prevent the shearing connector 515 from being removed from the bolt 510.

[0070] The capture-type shear bolt assembly 500 can be configured to be driven at the shear coupling 515 (e.g., the upper head 520 of the shear coupling 515). When torque is applied to the upper head 520, the capture-type shear bolt assembly 500 can rotate such that when the fixed jaws 202 and the movable jaws 204 are positioned around the insulator 104, the capture-type shear bolt assembly 500 then rotates in a first direction such that the capture-type shear bolt assembly 500 is along... Figure 18 The movable jaws 204 move in direction A, and the stop ridge 538 of the capture shear bolt assembly 500 moves in direction A, so that the protruding side 222 of the movable jaws 204 is closer to the top member 210 of the fixed jaws 202, thereby moving the two jaw faces 208 closer together, and connecting the modified clamp 1600 to the insulator 104. When the applied torque exceeds the threshold torque, the shearing portion 542 of the shearing coupling 515 can be cut off, thereby mechanically separating the upper head 520 from the threaded portion 518 of the bolt 510. For example, when the shearing portion 542 is cut off, the upper head 520 may no longer drive the threaded portion 518 of the bolt 510. When the shearing portion 542 of the shearing coupling 515 is cut off, the deformed upper portion 507 of the extension portion 513 can capturely secure the upper head 520 to the bolt 510. For example, the upper portion 507 of the deformed extension 513 can be configured such that the shearing coupling 515 remains engaged with the bolt 510 when the shearing portion 542 cuts. Similar to the torque bolt 1606, the capture shear bolt assembly 500 disconnects along the shearing portion 542 once a predetermined amount of tension is applied to the modified clamp 1600. This ensures sufficient tension is applied to the entire clamp 1600 and eliminates the risk of overtightening.

[0071] refer to Figure 30 Protective device assembly 10 can be modified into protective device assembly 3000. Protective device assembly 3000 is identical to protective device assembly 10, except that the first protective cover portion 12 and the second protective cover portion 14 are modified to be first protective cover portion 3012 and second protective cover portion 3014 connected to pin 3100. Accordingly, the same reference numerals are used for the same features in protective device assembly 10 and protective device assembly 3000. Advantageously, pin 3100 is incorporated into the first protective cover portion 3012 and the second protective cover portion 3014 to hold them relative to each other. Once installed, pin 3100 eliminates all risks of separation of the first protective cover portion 3012 and the second protective cover portion 3014.

[0072] refer to Figure 31 The first protective cover portion 3012 is the same as the first protective cover portion 12, except that the first protective cover portion 3012 is modified to include a first hole 3015 and a second hole 3017. Figure 32 The second protective cover portion 3014 is identical to the second protective cover portion 14, except that the second protective cover portion 3014 is modified to include a third hole 3019 and a fourth hole 3021, as well as a second ring 3045. Both the first ring 3043 and the second ring 3045 are heat-insulating rings, allowing them to be suspended above equipment (e.g., power line assembly 100) for positioning together with another attachment point, thereby allowing them to be pushed down into the equipment if necessary / advantageous, and serving the same purpose as the first ring 43 and the second ring 45.

[0073] refer to Figure 32 The pin 3100 has a body portion 3102, which is connected to a ring portion 3104 via a connecting portion 3106. A ridge 3108 is formed between the connecting portion 3106 and the body portion 3102. The body portion 3102 has flexible members 3110, each of which forms a protrusion 3112. A support member 3114 is located inside the flexible members 3110, thereby connecting a first portion 3116 of the body portion 3102 to a second portion 3118 of the body portion 3102. The flexible members 3110 are flexible, so they can deform toward the support member 3114 and be biased away from the support member 3114 to maintain... Figure 31 The shape shown.

[0074] In use, the installation of the protective device assembly 3000 is the same as that of the protective device assembly 10. An additional step is to connect the pin 3100 to the first protective cover portion 3012 and the second protective cover portion 3014. The pin 3100 can be connected to the first protective cover portion 3012 and the second protective cover portion 3014 using a heat rod. Furthermore, when the second protective cover portion 3014 overlaps with the first protective cover portion 3012 and is clipped into it (this is the same as when the second protective cover portion 14 overlaps with the first protective cover portion 12 and is clipped into it), the first hole 3015 through the first protective cover portion 3012 is aligned with the third hole 3019 through the second protective cover portion 3014, and the second hole 3017 through the first protective cover portion 3012 is aligned with the fourth hole 3021 through the second protective cover portion 3014. The second part 3118 of the main body portion 3102 of the pin 3100 passes through the third hole 3019 of the second protective cover portion 3014 and the first hole 3015 of the first protective cover portion 3012, and then through the second hole 3017 of the first protective cover portion 3012 and the fourth hole 3021 of the second protective cover portion 3014, so that the flexible member 3110 passes through the third hole 3019 of the second protective cover portion 3014 and the first hole 3015 of the first protective cover portion 3012. When the flexible member 3110 passes through the third hole 3019 of the second protective cover portion 3014 and the first hole 3015 of the first protective cover portion 3012, it applies a force to the pin 3100 in direction A, causing the flexible member 3110 to deform inward toward the support member 3114, so that the protrusion 3112 passes through the third hole 3019 of the second protective cover portion 3014 and the first hole 3015 of the first protective cover portion 3012, thereby positioning the protrusion 3112 within the first protective cover portion 3012 and the second protective cover portion 3014. Once the protrusion 3112 is located within the first protective cover portion 3012 and the second protective cover portion 3014, the flexible member 3110 is biased outward, such that the pin 3100 at the protrusion 3112 is larger than the third hole 3019 through the second protective cover portion 3014 and the first hole 3015 through the first protective cover portion 3012, to maintain the connection between the first protective cover portion 3012 and the second protective cover portion 3014, unless a second force is applied in the opposite direction to direction A, strong enough to deform the flexible member 3110 inward toward the support member 3114, causing the protrusion 3112 to pass through the first hole 3015 through the first protective cover portion 3012 and the third hole 3019 through the second protective cover portion 3014, thereby positioning the protrusion 3112 outside the first protective cover portion 3012 and the second protective cover portion 3014, which will allow the first protective cover portion 3012 and the second protective cover portion 3014 to separate.

[0075] It should also be noted that the terms “first,” “second,” “third,” “upper,” “lower,” etc., are used here to modify various elements. Unless otherwise specified, these modifiers do not imply that the modified elements have a spatial, sequential, or hierarchical order.

[0076] While this disclosure has been described with reference to one or more exemplary embodiments, those skilled in the art will understand that various changes can be made and elements can be substituted with equivalents without departing from the scope of this disclosure. Furthermore, many modifications can be made to adapt particular situations or materials to the teachings of this disclosure without departing from its scope. Therefore, this disclosure is not intended to be limited to the specific embodiments disclosed as the best mode, but rather to include all embodiments falling within the scope of the appended claims.

[0077] Parts list

Claims

1. A protective device assembly, comprising: The protective cover portion is used to cover the power transmission line assembly, the power transmission line assembly having insulators and conductors, and the protective cover portion has: a first side opening, allowing the insulator to pass through the first side opening; A second side opening opposite to the first side opening, allowing the conductor to pass through the second side opening; as well as A clip, which is connected to the insulator, and the protective cover portion can be attached to the clip. The protective device assembly is installed at the terminal of the power transmission line assembly, and Regardless of the location of the power transmission line assembly, the clamp can pivot to ensure that it is tightened in a vertical orientation relative to the ground below.

2. The protective device assembly according to claim 1, wherein, The clamp has a fixed jaw and a movable jaw, which are movable relative to each other to accommodate different sizes of the insulator.

3. The protective device assembly according to claim 2, wherein, The clamp has a bolt passing through the fixed jaws and the movable jaws, wherein the bolt is rotatable to move the fixed jaws and the movable jaws relative to each other.

4. The protective device assembly according to claim 3, wherein, The clamp has: a first jaw surface that engages in the fixed jaw; and a second jaw surface that engages in the movable jaw, such that the first jaw surface and the second jaw surface are opposite to each other.

5. The protective device assembly according to claim 2, wherein, The fixed jaw has a groove with edge walls formed on opposite sides of the groove, the movable jaw has grooves on opposite sides of the slider, and the slider is movable within the groove.

6. The protective device assembly according to claim 3, wherein, The fixed jaw has a threaded opening, the movable jaw has a threaded opening, and the bolt has a thread that engages with the threads of the openings in the fixed jaw and the movable jaw.

7. The protective device assembly according to claim 1, wherein, The protective cover portion is a first protective cover portion connected to the second protective cover portion, and wherein the dimensions of the first protective cover portion and the second protective cover portion are adapted to fit over the power transmission line assembly including the terminal clip.

8. The protective device assembly according to claim 1, wherein, The protective cover portion is a first protective cover portion connected to the second protective cover portion, and wherein the dimensions of the first protective cover portion and the second protective cover portion are adapted to fit over the power transmission line assembly including the wedge.

9. The protective device assembly according to claim 1, wherein, The clip is made of a thermoplastic compound.

10. A method for installing a protective device assembly, the method comprising: The clip is attached to the insulator of the power transmission line assembly, and the clip is pivoted to ensure that the clip is tightened in the vertical orientation; The protective cover portion is attached to the clip to overlap with a portion of the insulator, the protective cover portion having a first side opening such that the insulator can pass through the first side opening; And a second side opening opposite to the first side opening, allowing the conductor to pass through the second side opening. The protective device assembly is installed at the terminal of the power transmission line assembly, and Regardless of the location of the power transmission line assembly, the clamp can pivot to ensure that it is tightened in a vertical orientation relative to the ground below.

11. The method according to claim 10, wherein, The protective shield portion is a first protective shield portion, and the method further includes connecting a second protective shield portion to the first protective shield portion.

12. The method according to claim 10, wherein, The clamp is attached to the insulator between the first canopy and the wedge.

13. The method according to claim 10, wherein, The clamp has a fixed jaw and a movable jaw, the fixed jaw and the movable jaw being movable relative to each other to accommodate different sizes of the insulator, and the method further includes moving the fixed jaw and the movable jaw closer to each other to attach the clamp to the insulator.

14. The method of claim 10, wherein, The clamp has a fixed jaw and a movable jaw, the fixed jaw and the movable jaw being movable relative to each other to accommodate different sizes of the insulator. The fixed jaw has a threaded opening, the movable jaw has a threaded opening, and a bolt has threads that engage with the threads of the openings in the fixed jaw and the movable jaw. The method further includes rotating the bolt to move the fixed jaw and the movable jaw closer to each other, thereby attaching the clamp to the insulator.

15. A protective device assembly, comprising: A power transmission line assembly having an insulator and a conductor connected to a terminal clamp; A clip, which is connected to the insulator; A first protective cover portion is attached to the clamp and has a first side opening that allows the insulator to pass through the first side opening. as well as A second protective cover portion, connected to the first protective cover portion to cover the power transmission line assembly, has a second side opening opposite the first side opening, allowing the conductor to pass through the second side opening. The protective device assembly is installed at the terminal of the power transmission line assembly, and Regardless of the location of the power transmission line assembly, the clamp can pivot to ensure that it is tightened in a vertical orientation relative to the ground below.

16. The protective device assembly according to claim 15, wherein, The clamp has a fixed jaw and a movable jaw, which are movable relative to each other to move closer to each other, thereby connecting to the insulator.

17. The protective device assembly according to claim 16, wherein, The clamp has a bolt passing through the fixed jaws and the movable jaws, wherein the bolt is rotatable to move the fixed jaws and the movable jaws relative to each other.

18. The protective device assembly according to claim 17, wherein, The clamp has: a first jaw surface that engages in the fixed jaw; and a second jaw surface that engages in the movable jaw, such that the first jaw surface and the second jaw surface are opposite each other to contact the insulator.

19. The protective device assembly according to claim 16, wherein, The fixed jaw has a groove with edge walls formed on opposite sides of the groove, the movable jaw has grooves on opposite sides of the slider, and the slider is movable within the groove.

20. The protective device assembly according to claim 17, wherein, The fixed jaw has a threaded opening, the movable jaw has a threaded opening, and the bolt has a thread that engages with the threads of the openings in the fixed jaw and the movable jaw.

21. A protective device assembly, comprising: The protective cover portion is used to cover the power transmission line assembly, which has insulators; as well as A clip, the clip being connected to the insulator, and the protective cover portion clamping onto the clip. The clamp has a fixed jaw and a movable jaw, which can move relative to each other to accommodate different sizes of the insulator. The clamp has a bolt that passes through the fixed jaw and the movable jaw. The bolt is rotatable to move the fixed jaws and the movable jaws relative to each other. The bolt is a torque bolt with a necking region, which breaks when a predetermined tension is applied during the installation of the protective device assembly.

22. The protective device assembly according to claim 21, wherein, The torque bolt has a hexagonal head above the necking region and a ring below the necking region.

23. The protective device assembly according to claim 3, wherein, The bolt is a capture-type shear bolt assembly with a shear portion that, during installation of the protective device assembly, disconnects when a predetermined tension is applied, and wherein, when the shear portion is cut off, the upper head or stud remains connected to the remainder of the capture-type shear bolt assembly.

24. The protective device assembly of claim 15, further comprising a pin passing through the first protective cover portion and the second protective cover portion.

Citation Information

Patent Citations

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