2263results about "Insulators" patented technology

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.4 to 5.28 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 11.0 to 16.0 g / 10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

The invention discloses an antifouling self-cleaning line column type porcelain insulator and a detection method thereof, and relates to the field of insulators, a connecting bin is provided with a positioning rotating member, two ends of a movable sleeve block are provided with one-way drawing units connected with a piston rod, and a gas storage bin is provided with a rotating exhaust member. By arranging a position adjusting rotating part, a rotating exhaust part and a one-way pulling unit, when wind blows a fan blade plate, a reversing bevel gear can drive a transmission shaft to rotate clockwise so as to enable a reciprocating lead screw to rotate clockwise, and when a transmission gear ring rotates anticlockwise, the reversing bevel gear drives the transmission shaft to rotate clockwise so as to enable the reciprocating lead screw to rotate anticlockwise so as to enable the reciprocating lead screw to rotate anticlockwise. Therefore, when the second pawl rotates, the reciprocating screw rod rotates clockwise all the time, one-way rotation of the reciprocating screw rod can be achieved, then the rotating exhaust part and the one-way pulling unit are matched, the surface of the insulator body can be cleaned through airflow, and the self-cleaning effect is achieved.

The invention provides an anti-icing type self-falling umbrella skirt structure and a power transmission line insulator. An umbrella skirt comprises a main umbrella skirt force bearing layer, a plurality of groups of deformation function layers which are circumferentially distributed and installed on the upper end face of the main umbrella skirt force bearing layer, and a hydrophobic layer which coats the top of the deformation function layer. Through interface strengthening design and a multi-scale deicing mechanism, the influence of low temperature and deformation stress on interface bonding strength and durability is reduced, and the effective service life of the insulator is prolonged; and through microcosmic and macroscopic cooperation, the deicing efficiency is improved, and self-falling of the ice layer is achieved.

The invention belongs to the technical field of insulator chain production, particularly relates to a power insulator manufacturing and assembling machine and an assembling process, and aims to solve the problems that manual assembling in the prior art is not only low in efficiency but also prone to bumping, the following scheme is provided: the power insulator manufacturing and assembling machine comprises a fixed base which is of a long-strip-shaped structure on the whole; a longitudinal through hole is formed in the middle, close to the feeding end, of the fixed base, a rectangular notch and an installation notch which are communicated with the longitudinal through hole are formed in the middles of the two sides of the longitudinal through hole respectively, a ground rail used for bearing an assembled insulator string is clamped in the installation notch, and a downward pressing mechanism is arranged on the portion, located above the longitudinal through hole, of the upper surface of the fixed base. According to the invention, the clamping mechanism can slide to a place far away from the butt joint pressing station before butt joint, namely during feeding, so that the safety performance is improved, the space of the feeding position is expanded, the collision risk of the insulator disc is reduced, the feeding stage can be replaced by a manipulator, the labor intensity is reduced, and the feeding precision is improved.

The invention provides an embedded insulator coating structure and a preparation method and application thereof, and relates to the technical field of insulating materials. The invention provides an embedded insulator coating structure. The embedded insulator coating structure comprises an insulator, a plurality of grooves formed in the surface of the insulator, and room temperature vulcanized silicone rubber anti-pollution flashover coatings filled in the grooves and coated on the surface of the insulator, and the insulator is made of a hydrophilic material. According to the embedded insulator coating structure provided by the invention, the RTV coating (namely the room temperature vulcanized silicone rubber anti-pollution flashover coating) in the groove and the RTV coating on the surface are integrated, and meanwhile, the RTV coating in the groove is embedded into the insulator substrate, so that a mechanical interlocking structure is successfully formed, and the overall adhesive force and durability of the RTV coating are improved. According to the embedded insulator coating structure provided by the invention, the technical problem that a traditional coating type RTV coating structure of an insulator is insufficient in adhesive force and durability is solved.

The invention belongs to the technical field of insulator dip-coating equipment, and discloses a suspension insulator dip-coating device which is characterized in that a workpiece loading and unloading assembly and a trough moving assembly electrically slide on a ground rail, and at least two dip-coating machine head assemblies which are sequentially arranged in the length direction of the ground rail are arranged between a workpiece height measuring assembly and the trough moving assembly; the workpiece loading and unloading assembly is provided with at least two workpiece chucks arranged in the width direction of the ground rail. The dip-coating machine head assembly is provided with at least two electric clamping mechanisms arranged in the width direction of the ground rail. The lower end of each workpiece chuck is connected with a chuck jacking mechanism; a first ranging laser sensor is arranged on one side of each workpiece chuck; the workpiece height measuring assembly is provided with at least two second distance measuring laser sensors arranged in the width direction of the ground rail. According to the insulator dip-coating machine, alternate hanging of a plurality of insulators on different dip-coating machine head assemblies and alternate coating of the different dip-coating machine head assemblies in the trough moving assembly are conveniently achieved, and the production efficiency is improved.

A radio frequency (RF) feedthrough component having an impedance greater than 20 ohms is disclosed. The feedthrough includes a ceramic body having a flexible non-ferrous conductor adhered to its outer peripheral surface and to an inner peripheral surface of an aperture through the ceramic body. A non-ferrous conductive lead is disposed through the aperture and protrudes from at least one side thereof. A non-ferrous hermetic seal is formed between a portion of the non-ferrous conductive lead disposed in the aperture and the non-ferrous conductor adhered to the surface of the aperture. The RF feedthrough can be assembled in an opening of a conductive housing to form an electromagnetically shielded package for an electrical circuit.

The invention provides a composite insulator with a cooling function and an embedded microcapsule hydrophobing agent and a preparation method of the composite insulator, and relates to the technical field of electric insulating materials. The composite insulator comprises an umbrella cover base material, the surface of the umbrella cover base material is provided with a cooling coating, and a microcapsule water repellent agent is embedded in the umbrella cover base material. The umbrella cover base material is silicone rubber or modified epoxy resin; the cooling coating is prepared from Al2O3 (at) TiO2 / PDA-BN, fluorocarbon resin, isopropanol, a dispersing agent and a flatting agent; the microcapsule water repellent agent is composed of a core layer and a shell layer, the core layer is made of fluorinated modified polystyrene / nano-silica microspheres, and the shell layer is made of polymer resin. The composite insulator has cooling and hydrophobic functions, the two functions are synergistic, the weather resistance of the insulator can be remarkably improved, the service life of the insulator in a severe environment is prolonged, and the defects that in the prior art, materials are fast in aging, poor in hydrophobic durability, single in function and the like are overcome.

The invention discloses a disc-shaped suspension type porcelain insulator processing device, and relates to the field of disc-shaped suspension type porcelain insulator processing, and the disc-shaped suspension type porcelain insulator processing device comprises a workbench, the top end of the workbench is rotatably connected with a supporting shaft, the outer side of the supporting shaft is fixedly provided with a first rotating disc and a second rotating disc, and the second rotating disc is arranged above the first rotating disc. A first electric push rod is fixed to the edge of the top end of the first rotating disc, a supporting disc is fixed to the top end of the first electric push rod, a fixing groove is formed in the edge of the second rotating disc, pug enters the position between the supporting disc and the upper mold, the pug can be stored in the forming groove, and a rough insulator-shaped pug blank is formed; due to the fact that the electric heating wires are arranged in the upper mold and the supporting disc, an insulator-shaped mud blank can be heated through a sealed environment, on one hand, the mud blank can be preliminarily dried through drying, an insulator can be shaped, and on the other hand, adhesion between the outer side of the mud blank and the upper mold and between the outer side of the mud blank and the supporting disc can be avoided through heating, so that mud blank demolding is easier.

The utility model relates to a windproof and anti-icing convenient insulating device capable of live working, which comprises a lower-end metal accessory, an insulating body is arranged on the upper part of the lower-end metal accessory, and an upper-end fitting is arranged on the upper part of the insulating body; the upper part of the upper-end fitting is connected with a gland through a rotating shaft; the buckling part of the upper end fitting and the gland is provided with an arc-shaped groove for installing a high-voltage wire, and the arc-shaped groove is a silicone rubber cushion layer. An operation screw rod penetrating through the gland is mounted at the end, far away from the silicone rubber cushion layer, of the upper-end fitting; and a compression spring is sleeved on the operation screw rod between the upper end fitting and the gland. According to the insulator, the diameter of the upper umbrella cover is increased, so that the influence of dust, foreign matters or icing in severe weather on the insulator is avoided; lines can be maintained by live-line operation, and safe operation and maintenance of the lines are facilitated; the wire fixing structure can effectively avoid the problems of wire loosening and wire insulating layer abrasion caused by strong wind.

The invention discloses an insulating sleeve packaging production line and a control and use method thereof.The insulating sleeve packaging production line comprises a feeding system, a detection system, a pipe cutting and pulling system, a conveying system, a waste collecting system and a bundling and packaging system, and insulating sleeves are conveyed to the detection system through the feeding system; qualified products are pulled and conveyed to the conveying system through the cutting and pipe pulling system, and packaging is completed through the bundling and packaging system; when the detection system detects defective products, single-single cutting is carried out in the pipe cutting and drawing system, and waste collection is completed through the waste collection system. According to the invention, the defects of the sleeve can be detected, the detection device detects the defective sleeve by using the sensor under the condition that a packaging line is not stopped, manual intervention is not needed, the sleeve is not damaged, the quality control of the sleeve is realized in an automatic manner, the detection precision is improved, and a large amount of manpower and material resources are saved.

The present invention discloses an isolated mineral insulated fire-resistant cable, which relates to the technical field of power cables and includes a cable body, wherein an anti-wear component is provided on the outer surface of the cable body. When the present invention is used, the first anti-wear plate and the second anti-wear plate are pushed to slide to the edge inside the hole, and the arc-shaped strip is pulled to move the blade to cut the capsule membrane on the outer surface of the epoxy resin capsule. The epoxy resin glue flows to the top of the adhesive block through the glue outlet hole, and the arc-shaped partition is completely pulled out. The spring pushes the adhesive block out of the ejection hole and contacts the inner wall of the hole. Wait for the epoxy resin glue to solidify, and achieve a firm bond between the adhesive block and the inner wall of the hole. Under the action of the anti-wear component, a protective cover is formed between the cable body and the edge of the inner wall of the hole, isolating the cable body from direct contact with the edge of the inner wall of the hole, and under the action of the two rubber gaskets, the flexible protection area of ​​the cable body is extended.

The invention relates to an enameled round wire, to a method for producing an enameled round wire and to the use of an enameled round wire. So far, lubricating wire paints, in particular wire paints having polymers containing siloxane groups, cannot be impregnated because the uppermost "last" lubricating layer in the multilayer wire paint structure is non-polar due to the siloxane groups. The invention suggests that the multilayer structure can be used in order to break at least the uppermost layer of lubricating paint by means of an intermediate step of energizing and / or Joule heating, which is often present, to raise the temperature to 200 DEG C or higher for a short period of time, thus, the subsequent impregnation with the liquid impregnating resin can be bonded to the thermally labile layer below the uppermost lubricating layer.

The invention is suitable for the technical field of wire fixation, and provides a power line clamp for wire fixation, the power line clamp comprises a line clamp combination and a fixing assembly, the line clamp combination comprises an upper clamping seat and a lower clamping seat, the upper clamping seat and the lower clamping seat are both provided with a groove, a mounting groove, a connecting groove and a connecting hole, and the power line clamp also comprises a distance adjusting mechanism, a connecting mechanism and a clamping assembly. According to the power line card for fixing the wires, the distance adjusting mechanism is matched with the fixing assembly, so that the wire card combination can fix a single wire, the wire card combination can separate and fix a plurality of wires, the plurality of wires are ensured not to be in contact, the safety and the reliability of a whole circuit system are improved, and the power line card is simple in structure and convenient to use. According to the utility model, the wiring is more tidy and ordered, the subsequent maintenance and inspection are facilitated, the connecting mechanism and the clamping assembly are matched with the fixing assembly, so that the two wire clamp combinations are stably connected, and one or two wire clamp combinations can be fixed on an insulator.

The invention belongs to the technical field of power equipment, and particularly discloses an outdoor GIS basin-type insulator multifunctional rain cover and a control method. The rainproof cover is controlled to be opened and closed through the driving motor, the telescopic flexibility of the rainproof cover is improved, the installation firmness and leakproofness of the rainproof cover are enhanced, the temperature and humidity sensor and the SF6 gas sensor are installed on the rainproof cover to monitor the state of the insulator, monitoring signals are transmitted to the main control unit, and the operation state of the insulator is detected. According to the invention, the functions of multifunctional rain cover telescoping, insulator condition monitoring, real-time monitoring of states of temperature, humidity, SF6 gas and the like, and alarm can be realized.

The invention relates to the technical field of electric insulating materials, and discloses an alicyclic epoxy resin hydrophobically modified insulator material and a preparation method and application thereof, the insulator material comprises an alicyclic epoxy resin matrix material and a surface modification material coated on the surface of the alicyclic epoxy resin matrix material; the alicyclic epoxy resin matrix material is prepared from the following raw materials: alicyclic epoxy resin, a curing agent A and an accelerant, raw materials for preparing the surface modification material comprise matrix resin, a curing agent B and a catalyst, and the matrix resin is dihydroxy polydimethylsiloxane and / or diphenyl (siloxane and polysiloxane). The novel insulator material based on alicyclic epoxy resin hydrophobic modification prepared by the invention not only has high mechanical strength, high pressure resistance and high weather resistance of an alicyclic epoxy resin insulating material, but also has excellent hydrophobic performance of a silicone rubber composite insulating material, avoids respective disadvantages of the alicyclic epoxy resin insulating material and the silicone rubber composite insulating material, and has a wide market prospect.

The invention discloses a preparation method of an anti-bird cover device with an ultra-large umbrella diameter and the anti-bird cover device, and relates to the technology of electrical tools and insulators, the preparation method of the anti-bird cover device with the ultra-large umbrella diameter comprises the steps that a hard insulating material is added into a reaction kettle to be stirred to obtain a castable, and the hard insulating material takes alicyclic epoxy resin as a matrix; and the hardware fitting is installed in a mold, the castable is injected into the mold through pressure, primary curing, demolding and secondary curing are carried out, and the anti-bird cover device with the ultra-large umbrella diameter is obtained. According to the anti-bird cover device with the ultra-large umbrella diameter and the manufacturing process of the anti-bird cover device, the diameter of the manufactured umbrella skirt is designed to reach 600 mm or above, the anti-bird cover device is suitable for special environments such as bird damage, icing and rainfall, and the operation reliability of a power transmission line can be effectively improved.

The invention discloses a quality monitoring system and method for insulation side expansion sleeve production, and relates to the field of pipe quality monitoring. The method comprises the steps that S1, ultrasonic wall thickness, infrared temperature, capacitance signals and process parameters are collected; S2, the signals are normalized to generate enhanced signals, and local gradient anomaly indexes are calculated; s3, a flaring stress index is calculated according to the thickness value deviation and the technological parameters; s4, calculating coupling unevenness based on a local gradient anomaly index; s5, calculating a comprehensive quality factor according to the local gradient anomaly index, the flaring stress index, the coupling unevenness and the process parameter deviation; s6, generating an anomaly identifier based on the comprehensive quality factor dynamic deviation rate and adaptive threshold detection anomaly; s7, mapping the time sequence characteristic corresponding to the abnormal identifier to a space coordinate to output defect distribution information; and S8, according to the defect distribution information, generating process parameter adjustment quantity and feeding back to a control system.

The invention relates to the field of insulating materials, in particular to a preparation method of a ceramic insulator, which comprises the following steps: ball-milling cryolite, kaolin, quartzite, thiourea intercalation layered bimetallic oxide, glass powder, sodium tungstate, ferrous sulfate and deionized water, uniformly mixing, adding a binder, uniformly stirring to obtain glaze, applying the glaze to a ceramic matrix to obtain a rough blank, and sintering to obtain the ceramic insulator. And drying the rough blank, putting the rough blank into a muffle furnace, heating to 1100-1200 DEG C, and sintering for 1-5h. The ceramic insulator prepared by the invention has excellent photocatalytic self-cleaning performance and anti-pollution flashover performance, can ensure safe and stable operation of a power transmission line, and reduces the maintenance cost of line operation.

Mounting plates for elevating platforms, including a mounting apparatus with interior and exterior reinforcement components elongated vertically. The interior reinforcement piece includes an embedded bolt that extends from the interior reinforcement piece, through a wall of the platform, and through the exterior reinforcement component. The interior and exterior reinforcement components have a stepped construction to convert peel stress to shear stress.

The invention discloses a plasma-based self-assembly nonlinear conductive coating preparation system and method. The system comprises a plasma processing platform, a sample preparation platform and a curing platform, the plasma processing platform comprises a plasma discharge power supply, an oscilloscope, a gas distributor and a reaction cavity; the sample preparation platform comprises an ultrasonic stirring unit, a magnetic stirring unit and a vacuum stirring unit, the curing platform comprises a heating oven and a pouring mold arranged in the heating oven, and the pouring mold is connected with an induction electrode assembly. The plasma-based self-assembly nonlinear conductive coating preparation system not only can integrate a plasma modification technology to realize optimization of a method for preparing a coating through electric field induction, but also can consider the requirement on the bonding strength of the coating, so that the nonlinear conductive coating with excellent nonlinear conductive characteristics and good surface adhesion is prepared.

The invention relates to the technical field of cables, and provides a corrosion-resistant insulated power cable. The corrosion-resistant insulated power cable is sequentially provided with a conductor layer, an insulating layer and a sheath layer from inside to outside, and the insulating layer is prepared from the following raw materials in parts by weight: low-density polyethylene, magnesium hydroxide and calcium carbonate composite powder, an antioxidant, dicumyl peroxide, zinc stearate and polyethylene wax; the sheath layer comprises the following raw materials in parts by weight: PVC resin, magnesium hydroxide and calcium carbonate composite powder, diisononyl phthalate, a calcium-zinc composite stabilizer, an antioxidant, polyethylene wax and calcium stearate. According to the corrosion-resistant insulated power cable prepared in the invention, the corrosion resistance of the power cable in extreme corrosion environments such as strong acid, strong alkali, high-concentration salt mist and the like is improved, and the condition that a common cable sheath is easy to expand and crack in the extreme corrosion environments is improved.

The invention provides an automatic insulator cleaning device. The automatic insulator cleaning device comprises a shell, a first driving assembly, a gear ring and a cleaning assembly. The shell is arranged on the insulator in a sleeving mode and connected with the tower pole, a rain baffle is arranged on the top of the shell in a surrounding mode, and a rain collecting space is defined by the rain baffle and the top of the shell. The multiple first driving assemblies are annularly arranged on the shell at intervals. Each first driving assembly is provided with a drainage channel communicating with the rainwater collecting space and a power conversion part used for converting kinetic energy of rainwater in the drainage channel into mechanical energy. And the gear ring is rotationally connected with the shell and is in power connection with each power conversion part. The cleaning assembly is connected with the gear ring, the cleaning assembly is provided with a plurality of cleaning parts annularly wound on the outer sides of the insulators, and the cleaning assembly is used for cleaning the surfaces of the insulators through the cleaning parts. According to the automatic insulator cleaning device provided by the invention, the surface of the insulator can be cleaned in all directions, and residual rainwater and dirt can be effectively removed.

The invention discloses a high-low voltage line insulator and a preparation process thereof, the process comprises an insulator collaborative production system and a physical energy circulation control system, the insulator collaborative production system carries out collaborative production of a high-voltage insulator and a low-voltage insulator, and the physical energy circulation control system carries out physical energy circulation control on the high-voltage insulator and the low-voltage insulator. High-voltage insulator production waste materials are utilized, production burdening of low-voltage insulators is regulated and controlled according to the mass ratio of all components in the waste materials, production of the low-voltage insulators is completed in combination with high-temperature waste gas waste heat of the high-voltage insulators, and the material energy circulation control system comprises a material circulation control module and an energy circulation control module. The production process of the insulator collaborative production system is regulated and controlled in real time by obtaining real-time waste material parameters and real-time high-temperature waste gas parameters generated in the production process of the high-voltage insulators respectively, and gradient differences existing in the aspects of material purity, structural complexity, process precision and detection standards of the high-voltage insulators and the low-voltage insulators are utilized; collaborative optimization production of high-voltage and low-voltage insulators is realized, and the utilization rate of resources can be remarkably improved.

The invention provides a fettling device and a fettling method for insulator production, and belongs to the technical field of insulator machining, the fettling device for insulator production comprises a workbench and an insulator placed in the workbench, the workbench is internally provided with a clamping assembly used for placing and clamping the insulator, and the clamping assembly is used for clamping the insulator; a fettling assembly used for fettling the insulator is arranged on one side of the clamping assembly, and a supporting assembly is arranged in the workbench; the supporting assembly comprises two sets of supporting frames arranged in the workbench in a sliding mode. By arranging the supporting assembly, it is guaranteed that all the umbrella skirts are supported, angle adjustment is carried out through the pin rollers, the supporting assembly is conveniently inserted into the bottoms of the umbrella skirts and fits the angles and shapes of the bottoms of the umbrella skirts, and the problem that a hard support makes direct contact with the machining surface and is scratched is avoided; the inclination angle of the roller can be adjusted to ensure that the roller can adapt to the inclination angle of the bottom of the umbrella skirt so as to adapt to the supporting requirements of the bottoms of different insulator umbrella skirts.

The invention relates to the technical field of insulator production, and particularly discloses disc-shaped suspension insulator forming processing equipment and process, the disc-shaped suspension insulator forming processing equipment comprises a frame body, the frame body comprises a base, a working table and a lifting seat, the working table is arranged on the base, the lifting seat is located above the working table and is in sliding fit with the base, and the lifting seat is located above the working table and is in sliding fit with the base; a lower die is arranged on the working table, an upper die is arranged on the lifting seat, a heating device is arranged in the working table, a cutting assembly is further arranged on the working table and comprises a mounting seat, a first driving mechanism, a positioning plate, a cutter and a second driving mechanism, the mounting seat is arranged on the working table in a sliding fit mode, and the positioning plate is arranged on the mounting seat. An elastic telescopic rod is arranged between the positioning plate and the mounting seat, and the cutter is arranged on the positioning plate in a sliding fit manner; according to the disc-shaped suspension insulator forming machining equipment and process, the skirt edge of the insulator can be cut off through the cutting assembly, and the production efficiency and safety are improved.

The invention discloses an anti-pollution flashover and anti-impact tempered glass insulator and a processing technology thereof.The processing technology comprises the steps that silicon dioxide, sodium carbonate, calcium oxide, magnesium oxide, cerium dioxide, niobium trioxide, scandium trioxide, tungsten carbide and nano boron nitride are evenly mixed according to the formula ratio and fused, and fused liquid is obtained; then slowly injecting the molten liquid into a mold preheated in advance in a nitrogen environment, molding, and demolding to obtain a blank; carrying out primary nitriding treatment, pulsed magnetic field treatment, toughening treatment, heat treatment and secondary nitriding treatment to obtain a toughened glass part; and finally, binding the iron cap, the toughened glass piece and the steel foot into a whole by using an adhesive to obtain the toughened glass insulator. The toughened glass insulator has excellent anti-pollution flashover and anti-impact performance.

The present invention relates to the technical field of insulator production, and discloses a forming mold for an insulator, which includes an upper mold and a lower mold. An upper injection cavity is formed on the bottom surface of the upper mold, and a lower injection cavity is formed on the top surface of the lower mold. The insulator is correspondingly engaged with the lower injection cavity. Exhaust holes are formed at both front and rear ends of the lower injection cavity. A frame-shaped air groove is formed on the top surface of the lower mold. The exhaust holes are connected to the air groove. Annular grooves are formed on both front and rear sides of the lower injection cavity. An annular ring is engaged in the annular groove. A clamping block is provided at the top end of the annular ring. Clamping grooves are formed at the front and rear of the upper injection cavity, and the positions of the clamping grooves correspond to the positions of the clamping blocks. The inner wall of the annular ring is fitted to the cast iron parts before and after the insulator. The present invention is beneficial to avoiding the influence of gas in the mold cavity on the material flow, and at the same time avoiding the difficulty in mold opening caused by the formation of negative pressure during the reciprocating production process, and is beneficial to cooperating with external devices to pick up the insulator.

The invention discloses an insulator convenient to connect with a cross arm, and relates to the technical field of insulators, the insulator comprises an insulating part, a steel foot fixedly connected to the bottom of the insulating part and a mounting seat with a mounting hole, the steel foot is rotatably connected to the mounting seat through a hinged support, and the axial direction of the hinged support is parallel to a wire slot in the top of the insulating part. A lantern ring is arranged on the hinged support in the axial direction of the insulating part in a relatively rotating mode, a first positioning ring and a second positioning ring are fixedly connected to the lantern ring, and when the insulating part is vertically installed, the first positioning ring and the mounting hole are coaxial; and when the insulating part is installed at an inclined angle alpha, the second positioning ring and the mounting hole are coaxial. The mounting angle of the insulating part can be changed through the hinged support, the first positioning ring, the second positioning ring and the lantern ring are arranged, the insulating part can be locked in a vertical state or an inclined state, and the application range is widened. And the connection between the mounting seat and the cross arm and the angle locking of the insulating part can be realized only through a group of bolt connection pairs, so that the mounting is very convenient, and the connection is firm.