Hot-line work cable insulation support

Abstract

The invention discloses a hot-line work cable insulation support, which comprises a holding pole assembly and a cable clamp, and is characterized in that the holding pole assembly is used for connecting the hot-line work cable insulation support to the peripheral side of an electric pole; the cable clamp is arranged on the surface, away from the electric pole, of the holding pole assembly and comprises a fixing clamp and a length adjusting rod, one end of the length adjusting rod is movably connected to the holding pole assembly, the other end of the length adjusting rod is connected with the fixing clamp, and the length adjusting rod is of a foldable structure and used for adjusting the clamping position between the cable clamp and a cable; the cable transversely penetrates through the clamping cavity, and the fixing clamp adjusts the size of the clamping cavity so as to clamp the cable. According to the live working cable insulation support, a live cable can be clamped through the fixing clamp, the clamping position of the live cable is adjusted through cooperation with the length adjusting rod and the fixing clamp, the interphase distance and the ground distance of a three-phase cable head are further controlled, the live cable is made to be away from an electric pole, height control is achieved, operators are prevented from making direct contact with the live cable, and the working efficiency is improved. The operation safety is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of live cable working, and in particular to an insulating bracket for live cable working. Background Art

[0002] Bypass operation is an operation mode that transfers the load in the distribution network to the bypass system through bypass equipment access, so as to realize the power outage and maintenance of the equipment to be repaired. When bypassing the overhead line of the distribution network, there are currently two main ways to suspend the bypass flexible cable, both of which have safety hazards such as electric shock and inconvenient installation: ① Use a cable bracket fixed on the pole to fix it. The cable bracket is directly fixed on the pole. This suspension method is often short because the live cable cannot be far away from the pole. When working on the pole, the human body or construction equipment may touch the live cable, which may easily cause electric shock accidents; ② Directly use an insulating rope to suspend the bypass flexible cable on the conductor. This suspension method is easy to damage the cable insulation layer due to the direct wear of the conductor due to the insulating rope. Long-term use can easily damage the cable insulation layer, causing the cable to leak electricity and cause safety hazards. At the same time, due to the complex conditions of the equipment and conductors on the pole, the existing cable bracket fixed on the pole is easy to be unable to adapt to the cable fixing support in complex scenes, and the cable fixing position and angle cannot be adjusted according to the actual situation. Summary of the invention

[0003] The main purpose of the present invention is to provide an insulating bracket for live working cables, aiming to solve the problem that when the live cables are untied, the distance between the live cables and the grounding body is insufficient, which easily causes grounding or phase short circuit and endangers the operators and power grid equipment.

[0004] To achieve the above-mentioned purpose, the live working cable insulation support proposed by the present invention comprises:

[0005] A pole holding assembly, used to connect the live working cable insulation bracket to the peripheral side of the pole; and

[0006] A cable clamp, wherein the cable clamp is arranged on the surface of the pole holding assembly facing away from the pole, the cable clamp comprises a fixing clamp and a length adjustment rod, one end of the length adjustment rod is movably connected to the pole holding assembly, and the other end is connected to the fixing clamp, the length adjustment rod is a foldable structure, and is used to adjust the clamping position between the cable clamp and the cable, the fixing clamp is provided with a clamping cavity, the cable crosses the clamping cavity, and the fixing clamp adjusts the size of the clamping cavity to clamp the cable.

[0007] Preferably, the fixing clamp includes a clamp body, a first adjustment component and a second adjustment component, the first adjustment component is movably connected to one end of the clamp body away from the holding rod assembly, part of the first adjustment component is located in the clamping cavity, and is used to adjust the size of the clamping cavity, and the second adjustment component is arranged between the clamp body and the length adjustment rod, and is used to adjust the rotation angle of the second adjustment component relative to the length adjustment rod.

[0008] Preferably, the first adjustment component includes a clamping block, a screw and a bearing, one end of the screw is passed through the clamp body and connected to the clamping block, the bearing is arranged between the screw and the clamping block, and the screw and the bearing cooperate to drive the clamping block to move along the length direction of the clamping cavity.

[0009] Preferably, the surface of the clamping block facing away from the screw rod is in an arc-shaped structure, and the cavity wall of the clamping cavity opposite to the arc-shaped surface of the clamping block is in an arc-shaped structure for fitting with the surface of the cable.

[0010] Preferably, the second adjustment component includes a U-shaped connector and a tension knob, the open end of the U-shaped connector is connected to the length adjustment rod through the tension knob, and when the tension knob is loosened, the U-shaped connector rotates relative to the length adjustment rod with the tension knob as the center axis.

[0011] Preferably, the length adjustment rod comprises a plurality of movably connected rod bodies, each of the rod bodies is connected by a universal connector, the pole holding assembly is correspondingly provided with a positioning member, and the length adjustment rod is connected to the pole holding assembly via the universal connector and the positioning member.

[0012] Preferably, the pole holding assembly includes a cross arm, two limit plates and a pole fastening portion, the cable clamp is arranged on the surface of the cross arm, the two limit plates are arranged on the peripheral side of the cross arm and are arranged opposite to each other, and the pole fastening portion is connected to one end of the two limit plates away from the cross arm, and is used to install the cable clamp on the pole.

[0013] Preferably, the pole fastening part includes a rope tightener and a rope belt, the rope tightener is connected to the cross arm, the rope tightener has a winding shaft, one end of the rope belt is provided with a hook, the hook is used to connect the rope belt and the limiting plate, and the other end is wound on the winding shaft, the rope belt and the cross arm enclose a pole installation space, and the rope tightener winds up the rope belt to adjust the size of the pole installation space.

[0014] Preferably, the surface of the limiting plate facing the pole is in an arc-shaped structure for fitting with the surface of the pole.

[0015] Preferably, three cable clamps are provided and are evenly distributed along the length direction of the pole assembly.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The live working cable insulation bracket can clamp the live cable through the fixing clamp, and adjust the clamping position of the live cable in conjunction with the length adjustment rod and the fixing clamp, thereby controlling the phase-to-phase and ground distances of the three-phase cable heads, keeping the live cable away from the poles, achieving height control, avoiding direct contact between workers and live cables, and ensuring work safety; it can be used on poles with different pole diameters, and can be adjusted at multiple angles, which can be selected according to actual scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the live working cable insulation support of the present invention;

[0020] Figure 2 It is an exploded view of the cable insulation support fixing clamp for live working of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the live working cable insulation support of the present invention from another angle;

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0023] In the accompanying drawings, 1-pole holding assembly, 11-positioning piece, 12-cross arm, 121-hook connecting port, 13-limiting plate, 14-rope tightener, 141-reel, 2-cable clamp, 21-fixing clamp, 211-clamping cavity, 212-clamp body, 213-clamping block, 214-screw, 215-bearing, 216-connecting shaft, 217-U-shaped connecting piece, 218-tension knob, 22-length adjustment rod, 221-rod body, 222-universal connecting piece. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0026] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0027] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] To solve the above problems, see Figures 1 to 4 The present invention provides an insulating support for live working cables, comprising a pole assembly 1 and a cable clamp 2. The pole assembly 1 is used to connect the insulating support for live working cables to the circumference of a pole; the cable clamp 2 is arranged on the surface of the pole assembly 1 away from the pole, and the cable clamp 2 includes a fixing clamp 21 and a length adjustment rod 22. One end of the length adjustment rod 22 is movably connected to the pole assembly 1, and the other end is connected to the fixing clamp 21. The length adjustment rod 22 is a foldable structure, which is used to adjust the clamping position between the cable clamp 2 and the cable. The fixing clamp 21 is provided with a clamping cavity 211, and the cable crosses the clamping cavity 211, and the fixing clamp 21 adjusts the size of the clamping cavity 211 to clamp the cable. Among them, the fixing clamp 21 is made of insulating material, such as polyethylene or polyvinyl chloride, and has good insulation performance to ensure the personal safety of the staff.

[0029] In an optional embodiment, if Figure 2As shown, the fixing clamp 21 includes a clamp body 212, a first adjustment component and a second adjustment component. The first adjustment component is movably connected to one end of the clamp body 212 away from the pole assembly 1. Part of the first adjustment component is located in the clamping cavity 211, and is used to adjust the size of the clamping cavity 211. The second adjustment component is arranged between the clamp body 212 and the length adjustment rod 22, and is used to adjust the rotation angle of the second adjustment component relative to the length adjustment rod 22. Specifically, a thread groove is provided at the end of the clamp body 212 away from the length adjustment rod 22, and one end of the first adjustment component is threadedly connected to the thread groove, so that the first adjustment component can move along the length direction of the clamp body 212. At the same time, one end of the first adjustment component is located in the clamping cavity 211, and the other end is convexly arranged on the clamp body 212, so as to facilitate the staff to grasp and operate; the second adjustment component is connected to the clamp body 212 through a connecting shaft 216, so that the clamp body 212 rotates around the connecting shaft 216 as the center to change the clamping direction of the clamp body 212 to adapt to live cables in different states.

[0030] In an optional embodiment, if Figure 2 As shown, the first adjustment assembly includes a clamping block 213, a screw 214 and a bearing 215. One end of the screw 214 is inserted through the clamp body 212 and connected to the clamping block 213. The bearing 215 is disposed between the screw 214 and the clamping block 213. The screw 214 and the bearing 215 cooperate to drive the clamping block 213 to move along the length direction of the clamping cavity 211. Specifically, a handle is disposed at one end of the screw 214 protruding from the clamp body 212. The other end of the screw 214 is connected to the clamping block 213 through the bearing 215, so that the clamping block 213 moves along the length direction of the clamp body 212 through the screw 214 to adjust the size of the clamping cavity 211.

[0031] In an optional embodiment, if Figure 2 As shown, the surface of the clamping block 213 facing away from the screw 214 is in an arc-shaped structure, and the cavity wall of the clamping cavity 211 opposite to the arc-shaped surface of the clamping block 213 is in an arc-shaped structure, which is used to fit with the surface of the cable. Specifically, the clamping block 213 and the cavity wall of the clamping cavity 211 are designed in an arc shape, which can be used for live cables of different wire diameters and always fit closely with the surface of the live cable, thereby improving the clamping stability of the live working cable insulation bracket and effectively preventing the live cable from escaping from the clamping cavity 211.

[0032] In an optional embodiment, if Figure 2As shown, the second adjustment component includes a U-shaped connector 217 and a tension knob 218. The open end of the U-shaped connector 217 is connected to the length adjustment rod 22 through the tension knob 218. When the tension knob 218 is loosened, the U-shaped connector 217 rotates relative to the length adjustment rod 22 with the tension knob 218 as the central axis. Specifically, the end of the U-shaped connector 217 away from its open end and the clamping block 213 are both provided with grooves and correspond to each other. The U-shaped connector 217 and the clamping block 213 are connected by a screw, so that the clamping block 213 can rotate relative to the U-shaped connector 217 to adjust the clamping angle; a positioning pin hole is provided at the end of the length adjustment rod 22, and a hole is provided at the open end of the U-shaped connector 217 corresponding to the positioning pin hole. The U-shaped connector 217 is connected to the peripheral side of the length adjustment rod 22, and the positioning pin hole is aligned with it. The hole positions correspond and are tightened using a tension knob 218. The tension knob 218 is also provided with a handle for easy grasping. By rotating the tension knob 218, the tightness between the U-shaped connector 217 and the length adjustment rod 22 is changed, and the tension knob 218 of the U-shaped connector 217 is used as the central axis to rotate relative to the length adjustment rod 22 to adjust the clamping position of the fixing clamp 21. When the fixing clamp 21 is adjusted to the desired position, twist the tension knob 218 to achieve tightening. At this time, the position of the fixing clamp 21 cannot be adjusted.

[0033] Furthermore, the handle of the screw rod 214 and the handle of the tension knob 218 are both plum blossom-shaped in appearance, which increases the friction between the staff and the handles and facilitates the staff to stably grasp and rotate the screw rod 214 and the tension knob 218.

[0034] In an optional embodiment, if Figure 1 and Figure 3 As shown, the length adjustment rod 22 includes a plurality of movably connected rod bodies 221, each of the rod bodies 221 is connected by a universal connector 222, the pole assembly 1 is correspondingly provided with a positioning member 11, and the length adjustment rod 22 is connected to the pole assembly 1 through the universal connector 222 and the positioning member 11. Specifically, the surface of the universal connector 222 is toothed, and the two universal connectors 222 are meshed with each other, and the angle between the two rod bodies 221 is adjusted by the universal connector 222 to achieve a folding effect, so as to adjust the distance between the fixing clamp 21 and the live cable to be clamped.

[0035] In an optional embodiment, if Figure 1 and Figure 4As shown, the pole holding assembly 1 includes a cross arm 12, two limit plates 13 and a pole fastening portion, the cable clamp 2 is arranged on the surface of the cross arm 12, the two limit plates 13 are arranged on the peripheral side of the cross arm 12 and are arranged opposite to each other, and the pole fastening portion is connected to one end of the two limit plates 13 away from the cross arm 12, and is used to install the cable clamp 2 on the pole. Specifically, the cross arm 12 is made of stainless steel, has good rigidity, is not easy to deform, and has a longer service life. The limit plate 13 is made of insulating material and has good insulation performance. The cross arm 12 and the limit plate 13 are connected by screws to form a detachable structure, which is convenient for replacing the limit plate 13, and the limit plate 13 is connected to the pole fastening portion by a pin.

[0036] In an optional embodiment, the pole fastening part includes a rope tightener 14 and a rope belt, the rope tightener 14 is connected to the cross arm 12, the rope tightener 14 has a winding shaft 141, one end of the rope belt is provided with a hook, the hook is used to connect the rope belt and the limiting plate 13, and the other end is wound on the winding shaft 141. The rope belt and the cross arm 12 enclose a pole installation space, and the rope tightener 14 winds up the rope belt to adjust the size of the pole installation space. Specifically, the cross arm 12 is provided with a hook connection port 121, one end of the rope is connected to the cross arm 12 by a hook inserted into the hook connection port 121, and the other end of the rope is inserted into the winding shaft 141 to tighten the rope so that the limit plate 13 fits tightly against the pole; further, the rope is used as the main fastening component, which can be applied to poles with different pole diameters or different positions of the pole. Furthermore, the rope is made of high-strength polyester and has high wear resistance, thereby improving the installation stability of the live working cable insulation bracket.

[0037] In an optional embodiment, if Figure 4 As shown, the surface of the limiting plate 13 facing the pole is in an arc-shaped structure, so as to fit with the surface of the pole.

[0038] In an optional embodiment, if Figure 1 As shown, three cable clamps 2 are provided and are evenly distributed along the length direction of the pole assembly 1. The three cable clamps 2 correspond to three-phase cable heads and are used independently without interfering with each other.

[0039] The live working cable insulation bracket is assembled on the ground in advance. When in use, the live working cable insulation bracket is hoisted to a suitable position on the pole and installed on the pole through the cross arm 12 and the limit plate 13. The rope tightener 14 is used to tighten the rope to make the live working cable insulation bracket have high firmness. After untying the cable head on the pole, the angle between the two rod bodies 221 and the angle between the fixing clamp 21 and the rod body 221 are adjusted through the universal connector 222 to adapt to the actual scene requirements. The live cable is passed through the clamping cavity 211, and the screw 214 is used to push the clamping block 213 to cooperate with the cavity wall of the clamping cavity 211 to clamp the live cable.

[0040] To sum up, the live working cable insulation bracket can clamp the live cable through the fixing clamp, and adjust the clamping position of the live cable in conjunction with the length adjustment rod and the fixing clamp, thereby controlling the phase-to-phase and ground distances of the three-phase cable heads, keeping the live cable away from the poles, achieving height control, avoiding direct contact between workers and live cables, and ensuring work safety; it can be used on poles with different pole diameters, and can be adjusted at multiple angles, which can be selected according to actual scenarios.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cable insulation support for live working, characterized in that: include: A pole holding assembly, used for connecting the live working cable insulation bracket to the peripheral side of the pole; and A cable clamp, wherein the cable clamp is arranged on the surface of the pole holding assembly facing away from the pole, the cable clamp comprises a fixing clamp and a length adjustment rod, one end of the length adjustment rod is movably connected to the pole holding assembly, and the other end is connected to the fixing clamp, the length adjustment rod is a foldable structure, and is used to adjust the clamping position between the cable clamp and the cable, the fixing clamp is provided with a clamping cavity, the cable crosses the clamping cavity, and the fixing clamp adjusts the size of the clamping cavity to clamp the cable.

2. The live working cable insulation support according to claim 1, characterized in that: The fixing clamp includes a clamp body, a first adjustment component and a second adjustment component. The first adjustment component is movably connected to one end of the clamp body away from the holding rod assembly. Part of the first adjustment component is located in the clamping cavity and is used to adjust the size of the clamping cavity. The second adjustment component is arranged between the clamp body and the length adjustment rod and is used to adjust the rotation angle of the second adjustment component relative to the length adjustment rod.

3. The live working cable insulation support according to claim 2, characterized in that: The first adjustment component includes a clamping block, a screw and a bearing. One end of the screw is passed through the clamp body and connected to the clamping block. The bearing is arranged between the screw and the clamping block. The screw and the bearing cooperate to drive the clamping block to move along the length direction of the clamping cavity.

4. The live working cable insulation support according to claim 3, characterized in that: The surface of the clamping block facing away from the screw rod is in an arc-shaped structure, and the cavity wall of the clamping cavity opposite to the arc-shaped surface of the clamping block is in an arc-shaped structure for fitting with the surface of the cable.

5. The live working cable insulation support according to claim 2, characterized in that: The second adjustment component includes a U-shaped connector and a tension knob. The open end of the U-shaped connector is connected to the length adjustment rod through the tension knob. When the tension knob is loosened, the U-shaped connector rotates relative to the length adjustment rod with the tension knob as the center axis.

6. The live working cable insulation support according to claim 1, characterized in that: The length adjustment rod comprises a plurality of movably connected rod bodies, each of the rod bodies is connected via a universal connector, the pole holding assembly is correspondingly provided with a positioning member, and the length adjustment rod is connected to the pole holding assembly via the universal connector and the positioning member.

7. The live working cable insulation support according to claim 1, characterized in that: The pole holding assembly includes a cross arm, two limit plates and a pole fastening portion. The cable clamp is arranged on the surface of the cross arm. The two limit plates are arranged on the peripheral side of the cross arm and are arranged opposite to each other. The pole fastening portion is connected to one end of the two limit plates away from the cross arm and is used to install the cable clamp on the pole.

8. The live working cable insulation support according to claim 7, characterized in that: The pole fastening part includes a rope tightener and a rope belt, the rope tightener is connected to the cross arm, the rope tightener has a winding shaft, one end of the rope belt is provided with a hook, the hook is used to connect the rope belt and the limiting plate, and the other end is wound on the winding shaft, the rope belt and the cross arm enclose a pole installation space, and the rope tightener winds up the rope belt to adjust the size of the pole installation space.

9. The live working cable insulation support according to claim 7, characterized in that: The surface of the limiting plate facing the pole is in an arc-shaped structure, so as to fit with the surface of the pole.

10. The cable insulation support for live working according to claim 1, characterized in that: There are three cable clamps, which are evenly distributed along the length direction of the pole assembly.

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