CN117988615B - Electric pole - Google Patents
Electric pole Download PDFInfo
- Publication number
- CN117988615B CN117988615B CN202410404920.3A CN202410404920A CN117988615B CN 117988615 B CN117988615 B CN 117988615B CN 202410404920 A CN202410404920 A CN 202410404920A CN 117988615 B CN117988615 B CN 117988615B
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- Prior art keywords
- cross arm
- vibration
- hole
- sealing
- arm body
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- 238000007789 sealing Methods 0.000 claims abstract description 87
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 230000017525 heat dissipation Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims description 26
- 238000013016 damping Methods 0.000 claims description 21
- 239000011347 resin Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 244000080575 Oxalis tetraphylla Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Insulators (AREA)
Abstract
The invention provides an insulating cross arm and an electric pole, and belongs to the field of power related equipment, wherein the insulating cross arm comprises a cross arm body, a vibration reduction assembly and a heat dissipation assembly, and a through hole is formed in the cross arm body along the length direction of the cross arm body; the vibration reduction assembly comprises a connecting piece and a buffer mechanism, wherein the connecting piece is used for erecting a wire and can move in the through hole, the buffer mechanism comprises a vibration reduction rod, first heat conduction liquid and a sealing cover, the vibration reduction rod is parallel to the length direction of the cross arm body and is coaxially connected with the splicing section, a plurality of vibration reduction sheets are arranged on the periphery of the vibration reduction rod, and the first heat conduction liquid is filled between the vibration reduction rod and the through hole; the heat dissipation assembly comprises a sealing tube, a liquid suction tube and second heat conduction liquid, one end of the sealing tube is located in the gap, the other end of the sealing tube is located outside the sealing cover, and the liquid suction tube is coaxially arranged on the inner wall of the sealing tube and used for absorbing the second heat conduction liquid. The insulating cross arm provided by the invention can solve the technical problem that the existing insulating cross arm has potential safety hazards due to frequent vibration of wires.
Description
Technical Field
The invention belongs to the field of power related equipment, and particularly relates to an insulating cross arm and an electric pole.
Background
The cross arm is generally arranged at the top of the pole body to support and overhead the electric wire, and is an important component in the pole tower, and can be used for installing insulators and hardware fittings to support the wires or lightning conductors and keep a certain safety distance according to regulations. In terms of use applications, the conventional cross arm can be divided into a straight cross arm, a corner cross arm, a tension-resistant cross arm and the like. The straight-line cross arm only considers the water quality load and the horizontal load of the wire under the condition of normal unbroken wire, and the transfer cross arm is mainly arranged at the corner of the wire and can bear the vertical and horizontal loads of the wire and also bear the tension of the large single-side wire. The tension cross arm will also be a tension differential of Zhou Daoxian in addition to bearing the vertical and horizontal loads of the wire. In terms of materials, the existing cross arms can be divided into iron cross arms, porcelain cross arms and composite insulating cross arms. The insulating cross arm is widely applied to the field of electrical equipment due to the characteristics of low manufacturing cost, reliability and durability.
In the use process of the conventional insulating cross arm, the end part of the conventional insulating cross arm is generally provided with a connecting piece made of metal, and an electric wire is overhead through the metal piece, so that the electric wire is easy to generate extremely frequent fine vibration under the disturbance of cross wind due to higher erection height, and the electric wire is also easy to generate sound due to the high-frequency vibration; at present, the existing insulating cross arm lacks a related device capable of preventing the electric wire from excessively vibrating, so that the technical problem of frequent vibration of the electric wire cannot be solved, and the anti-fatigue strength of the insulating cross arm is lower than that of the traditional metal cross arm due to the specificity of the material (glass fiber and cured resin) of the insulating cross arm, so that certain potential safety hazards exist, and improvement is needed.
Disclosure of Invention
The invention aims to provide an insulating cross arm so as to solve the technical problem that potential safety hazards exist in the existing insulating cross arm due to frequent vibration of wires.
In order to achieve the above purpose, the invention adopts the following technical scheme: provided is an insulating crossarm including:
one end of the cross arm body is connected with the electric pole body, a through hole is formed in the cross arm body, and the length direction of the through hole is parallel to the length direction of the cross arm body;
The vibration reduction assembly comprises a connecting piece and a buffer mechanism, wherein the connecting piece is positioned at one end of the cross arm body far away from the electric pole body and is used for erecting a wire, and the connecting piece is provided with an inserting section which is inserted into the through hole in a sliding manner;
The buffer mechanism comprises a vibration absorption rod and a sealing cover, and the sealing cover is arranged on a port, close to the electric pole body, of the through hole; the vibration absorption rod is arranged in the through hole and is coaxially connected with the plug-in section, and a first heat conduction liquid is filled between the vibration absorption rod and the through hole; the outer circumferences of the two ends of the vibration absorbing rod are in sealing connection with the inner wall of the through hole, the outer circumference of the vibration absorbing rod is provided with a plurality of vibration absorbing sheets, and the vibration absorbing sheets are parallel to each other and are connected to the outer circumference of the vibration absorbing rod in a rocker arm shape;
The heat dissipation assembly comprises a sealing tube, a liquid suction tube and second heat conduction liquid, wherein both ends of the sealing tube are respectively arranged in a sealing way, the sealing tube penetrates through the sealing cover, one end of the sealing tube stretches into a gap between the vibration absorption rod and the through hole, and the second heat conduction liquid is filled in the sealing tube; the liquid suction tube is coaxially arranged in the sealing tube, is attached and fixed with the inner wall of the sealing tube, is of a capillary structure and is used for absorbing the second heat conduction liquid.
In one possible implementation manner, the heat dissipation assembly further comprises an end cover, a heat dissipation fan and a mounting ring which are coaxially arranged in sequence from top to bottom, the mounting ring is coaxially connected to the top of the electric pole body, and one end of the sealing tube, which is far away from the connecting piece, is positioned below the mounting ring; the heat dissipation fan comprises a plurality of fan blades which are uniformly arranged at intervals around a first axis, the top ends of the fan blades are connected with the end cover, each fan blade is rotatably connected with the top end face of the mounting ring around the first axis, the middle parts of the fan blades are bent away from the direction of the first axis, smooth transition curved surfaces are formed at the middle parts of the fan blades to two ends of the fan blades, and a circulation gap is formed between every two adjacent fan blades.
In one possible implementation manner, the buffer mechanism further includes two damping springs, two damping springs are arranged in the cross arm body at intervals along the up-down direction, and the damping springs are arranged between the cross arm body and the plug-in section and are configured to have a pretightening force for keeping the plug-in section at an original position.
In one possible implementation manner, the vibration damping assembly further comprises a hinge shaft arranged in the middle of the inserting section, the hinge shaft is located on one side, away from the electric pole body, of the inserting section, the connecting piece is hinged with the cross arm body through the hinge shaft, and the axis direction of the hinge shaft is perpendicular to the length direction of the connecting piece and parallel to the horizontal direction.
In one possible implementation, the cross arm body includes an insulating resin layer and a plurality of fiber bundles embedded in the insulating resin layer, the through holes are formed in the insulating resin layer, the extending direction of each fiber bundle is parallel to the length direction of the through hole, and the fiber bundles on top of the insulating resin layer are configured to have a pretension force to shrink the insulating resin layer.
In one possible implementation manner, the cross arm body further comprises an insulating rubber layer coated on the periphery of the insulating resin layer, a plurality of shielding rings are coaxially and alternately arranged on the periphery of the insulating rubber layer, and each shielding ring is integrally formed with the insulating rubber.
In one possible implementation manner, the buffer mechanism further comprises a pressure variable sheet made of rubber, the pressure variable sheet is arranged at one end of the vibration absorbing rod, which is far away from the sealing cover, the edge of the pressure variable sheet is in sealing connection with the inner wall of the through hole, and the vibration absorbing rod coaxially penetrates through the pressure variable sheet and is in sealing connection with the pressure variable sheet.
In one possible implementation manner, the buffer mechanism further comprises a sealing ring made of rubber, the inner wall of one end of the through hole, which is far away from the sealing cover, is provided with an annular groove, and the sealing ring is arranged in the annular groove and is tightly abutted against the shock absorbing rod.
In one possible implementation manner, the cross arm body is provided with a mounting hoop and a connecting sheet adjacent to one end of the electric pole body, the mounting hoop is hooped on the periphery of the electric pole body, the connecting sheet is used for connecting the mounting hoop and the cross arm body, and the number of the connecting sheets is two and correspondingly distributed on two sides of the width direction of the cross arm body.
Compared with the prior art, the connecting piece in the insulating cross arm can conduct the vibration of the wire to the vibration absorbing rod so that the vibration absorbing rod can reciprocate along the axial direction of the vibration absorbing rod, the vibration absorbing piece on the vibration absorbing rod swings back and forth along with the movement of the vibration absorbing rod, and the mechanical energy of the vibration absorbing rod is converted into heat energy so as to reduce the damage of frequent vibration of the wire to the cross arm body; meanwhile, the first heat conduction liquid can absorb heat absorbed by the vibration absorption rod due to vibration, the sealing tube in the first heat conduction liquid is heated, the second heat conduction liquid in the sealing tube is gasified due to temperature rise and moves to the other end with lower temperature in the sealing tube, the second heat conduction liquid moving to the other end is condensed due to temperature reduction and is adhered to the liquid suction tube of the capillary structure, and flows back to one end of the sealing tube in the first heat conduction liquid under the capillary action of the liquid suction tube, the process is circularly repeated, heat in the first heat conduction liquid is continuously taken away, heat accumulation in the cross arm body is prevented, further the vibration of the cross arm body can be continuously eliminated, the cross arm body is prevented from reaching the fatigue limit of the cross arm body due to long-time dynamic load, and the technical problem that the existing insulating cross arm has potential safety hazards due to insufficient fatigue resistance is solved.
Another object of the present invention is to provide an electric pole, which includes a pole body and the insulating cross arm, wherein the top of the pole body is provided with a vent hole and a dodging hole, and one end of the sealing tube, which is far away from the connecting piece, passes through the dodging hole and is located inside the pole body.
Compared with the prior art, the electric pole body has all the beneficial effects of the insulating cross arm, and in addition, the ventilation holes can enable the heat dissipation of the sealing tube in the electric pole body to be smoother, and the heat accumulation in the insulating cross arm is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a schematic view of an internal structure of an insulating cross arm provided by the invention;
fig. 2 is a schematic diagram of the overall structure of the insulating cross arm provided by the invention;
FIG. 3 is a schematic view of the internal structure of the seal tube according to the present invention.
In the figure:
1. a cross arm body; 11. a through hole; 12. an insulating resin layer; 13. a fiber bundle; 14. a mounting collar; 15. a connecting sheet;
2. a vibration damping assembly; 21. a connecting piece; 211. a plug section; 22. a buffer mechanism; 221. a shock absorbing rod; 222. Sealing cover; 223. a damping spring; 224. a press-variable sheet; 225. a vibration damping sheet;
3. A heat dissipation assembly; 31. sealing the tube; 32. a liquid suction cylinder; 33. an end cap; 34. a heat dissipation fan; 35. a mounting ring;
4. An electric pole body; 41. a vent hole; 42. avoiding the hole.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be noted that, if terms indicating an azimuth or a positional relationship such as "upper", "lower", "inner", "back", and the like are presented, they are based on the azimuth or the positional relationship shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in combination with specific cases.
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, an insulating cross arm provided by the present invention will now be described. The insulating cross arm comprises a cross arm body 1, a vibration reduction assembly 2 and a heat dissipation assembly 3, wherein one end of the cross arm body 1 is connected with an electric pole body 4, a through hole 11 is formed in the cross arm body 1, and the length direction of the through hole 11 is parallel to the length direction of the cross arm body 1; the vibration damping assembly 2 comprises a connecting piece 21 and a buffer mechanism 22, wherein the connecting piece 21 is positioned at one end of the cross arm body 1 far away from the electric pole body 4 and is used for erecting a wire, and the connecting piece 21 is provided with an inserting section 211 which is inserted into the through hole 11 in a sliding manner; the buffer mechanism 22 comprises a vibration absorbing rod 221 and a sealing cover 222, and the sealing cover 222 is covered on a port of the through hole 11 adjacent to the electric pole body 4; the vibration absorption rod 221 is arranged in the through hole 11 and is coaxially connected with the plug section 211, and a first heat conduction liquid is filled between the vibration absorption rod 221 and the through hole 11; the outer circumferences of the two ends of the vibration absorption rod 221 are in sealing connection with the inner wall of the through hole 11, the outer circumference of the vibration absorption rod 221 is provided with a plurality of vibration absorption sheets 225, and the vibration absorption sheets 225 are mutually parallel and are all connected with the outer circumference of the vibration absorption rod 221 in a rocker arm shape; the heat dissipation assembly 3 comprises a sealing tube 31, a liquid suction tube 32 and second heat conduction liquid, both ends of the sealing tube 31 are sealed, the sealing tube 31 penetrates through a sealing cover 222, one end of the sealing tube extends into a gap between the vibration absorption rod 221 and the through hole 11, and the second heat conduction liquid is filled in the sealing tube 31; the liquid suction tube 32 is coaxially arranged in the sealing tube 31 and is adhered and fixed with the inner wall of the sealing tube 31, and the liquid suction tube 32 is of a capillary structure and is used for absorbing the second heat conduction liquid.
Compared with the prior art, the connecting piece 21 in the embodiment can transmit the vibration of the wire to the vibration absorbing rod 221 so that the vibration absorbing rod 221 moves reciprocally along the axial direction of the vibration absorbing rod 221, and the vibration absorbing sheet 225 on the vibration absorbing rod 221 swings reciprocally along with the movement of the vibration absorbing rod 221, so that the mechanical energy of the vibration absorbing rod 221 is converted into heat energy, and the damage of the frequent vibration of the wire to the cross arm body 1 is reduced; meanwhile, the first heat conduction liquid can absorb heat absorbed by the vibration absorption rod 221 due to vibration, the sealing tube 31 in the first heat conduction liquid is heated, the second heat conduction liquid in the sealing tube 31 is gasified due to temperature rise, moves to the other end with lower temperature in the sealing tube 31, condenses due to temperature reduction, is attached to the liquid suction tube 32 of the capillary structure, flows back to one end of the sealing tube 31 in the first heat conduction liquid under the capillary action of the liquid suction tube 32, and continuously takes away heat in the first heat conduction liquid, so that heat accumulation in the cross arm body 1 is prevented, further the vibration absorption rod 221 can be guaranteed to continuously eliminate vibration of the cross arm body 1, the cross arm body 1 is prevented from reaching the fatigue limit of the cross arm body due to dynamic load for a long time, and the technical problem that potential safety hazards exist due to insufficient anti-fatigue limits in the existing insulating cross arm is solved.
Based on the above embodiment, in order to ensure the heat dissipation capability of the sealing tube 31, the heat dissipation assembly 3 further includes an end cover 33, a heat dissipation fan 34 and a mounting ring 35 coaxially arranged from top to bottom in sequence, the mounting ring 35 is coaxially arranged at the top of the pole body 4, one end of the sealing tube 31, which is far away from the connecting piece 21, is located below the mounting ring 35, the heat dissipation fan 34 includes a plurality of fan blades which are uniformly arranged at intervals around the first axis, the top ends of the fan blades are connected with the end cover 33, and each fan blade is rotatably connected to the top end surface of the mounting ring 35 around the first axis, the middle part of the fan blade is bent in a direction far away from the first axis, and a smooth transition curved surface is formed from the middle part to two ends of the fan blade, and a circulation gap is formed between the fan blades of any two adjacent fan blades. In this embodiment, the heat dissipation fan 34 can rotate around the first axis under the action of external wind force or the temperature difference between the inside and the outside of the end cover 33, so that the fan blades can form a low pressure area on the periphery of the heat dissipation fan 34 by bending of the fan blades to accelerate the heat diffusion of the sealing tube 31; furthermore, the inventor has found that the rotation of the end cap 33 can be used to prevent birds from falling from the top of the pole body 4 during a specific use process, thereby achieving a multi-purpose technical effect.
In some embodiments, the buffer mechanism 22 further includes two damping springs 223, where two damping springs 223 are disposed in the cross arm body 1 at intervals along the up-down direction, between the cross arm body 1 and the plug section 211, and configured to have a pre-tightening force centering the plug section 211. The vibration damping spring 223 is arranged to buffer the vibration of the connecting piece 21, convert the more dilute vibration of the connecting piece 21 into the more stable vibration, make the movement of the vibration damping rod 221 more controllable, and be beneficial to preventing the rapid aging of the vibration damping sheet 225 and the vibration damping rod 221 caused by the too high vibration frequency.
Based on the above embodiment, the sealing cover 222 is of a double-layer structure, the outer layer is connected to the end face of the cross arm body 1, the inner layer and the inner wall of the through hole 11 form a sealing connection, and the material of the inner layer of the sealing cover 222 is flexible rubber, so that the sealing cover 222 can deform along with the flow of the first heat conduction liquid, and damping is provided for the movement of the vibration absorbing rod 221.
Optionally, considering that the vibration direction of the wire is mostly perpendicular to the length direction of the insulating cross arm, in order to make the vibration damping assembly 2 of the present invention more specific to the vibration damping effect of the cross arm body 1, in some embodiments, the vibration damping assembly 2 further includes a hinge shaft disposed in the middle of the insertion section 211, and the hinge shaft is located on a side of the insertion section 211 away from the electric pole body 4, and the connection piece 21 is hinged to the cross arm body 1 through the hinge shaft, and the axial direction of the hinge shaft is perpendicular to the length direction of the connection piece 21 and parallel to the horizontal direction. In the present embodiment, the provision of the hinge shaft can not only enhance the connection strength between the connecting piece 21 and the cross arm body 1, but also alleviate the adverse effect of the wire on the cross arm body 1 by the hinge between the connecting piece 21 and the cross arm body 1.
In addition to the above possible embodiments, considering that the through holes 11 opened in the cross arm body 1 adversely affect the structural strength of the cross arm body 1, in order for the cross arm body 1to include the insulating resin layer 12 and the plurality of fiber bundles 13 provided in the insulating resin layer 12, the above through holes 11 are formed within the insulating resin layer 12, the extending directions of the respective fiber bundles 13 are all parallel to the length direction of the through holes 11, and the cellulose at the top of the insulating resin layer 12 is configured to have a pretension to shrink the insulating resin layer 12. Compared with the prior art, the fiber bundles 13 arranged at the top of the insulating resin layer 12 can utilize the pretension of the fiber bundles to strengthen the whole strength of the cross arm body 1, so that the tension resistance of the insulating cross arm is improved, and the insulating cross arm is more firm and durable.
Based on the above embodiment, the cross arm body 1 further includes an insulating rubber layer coated on the outer periphery of the insulating resin layer 12, and the outer periphery of the insulating rubber layer is coaxially provided with a plurality of shielding rings, each shielding ring is disposed on the outer periphery of the insulating rubber layer along the length direction of the through hole 11 at intervals, and each shielding ring is integrally formed with the insulating rubber layer. In the embodiment, the insulating rubber can protect the cross arm body 1, prevent the cross arm body 1 from being corroded by natural factors such as wind, light, rain, snow and the like in the nature, and prolong the service life of the insulating cross arm; secondly, the arrangement of the shielding ring in the embodiment can cut off the water flow on the cross arm body 1, so that the short circuit of the wires caused by the communication of the water flow is prevented. Moreover, the arrangement of the shielding ring in the embodiment can also isolate the induction power plant of the wire, so that the wire is prevented from breaking down the air to cause accidents.
In a possible implementation manner, the buffer mechanism 22 further includes a pressure variable sheet 224 made of rubber, the pressure variable sheet 224 is disposed at one end far away from the sealing cover 222, the edge portion of the pressure variable sheet 224 is in sealing connection with the inner wall of the through hole 11, the vibration absorbing rod 221 coaxially penetrates through the pressure variable sheet 224 and is in sealing connection with the pressure variable sheet 224, further, the pressure variable sheet 224 is made of flexible rubber, and as set up above, the deformation of the pressure variable sheet 224 can be utilized to drive the first heat conducting liquid to flow, and vibration of the vibration absorbing rod 221 is buffered by damping in the flowing process of the first heat conducting liquid. Based on the same inventive concept, the buffer mechanism 22 further comprises a sealing ring made of rubber, the inner wall of one end of the through hole 11 far away from the sealing cover 222 is provided with a coaxial annular groove, and the sealing ring is arranged in the annular groove and is used for forming sealing connection between the through hole 11 and the vibration absorbing rod 221. The present embodiment can drive the first heat-conducting liquid in the through hole 11 to move by the lateral movement of the vibration-absorbing rod 221, and further, the vibration of the vibration-absorbing rod 221 is buffered by the damping generated during the flow of the first heat-conducting liquid.
For the connection mode between the cross arm body 1 and the electric pole body 4, in one possible implementation mode, the end of the cross arm body 1 adjacent to the electric pole body 4 is provided with a mounting hoop 14 and a connecting sheet 15, the mounting hoop 14 is hooped on the periphery of the electric pole body 4, the connecting sheet 15 is used for forming connection of the mounting hoop 14 and the cross arm body 1, the number of the connecting sheets 15 is two, and the connecting sheets 15 are correspondingly distributed on two sides of the cross arm body 1 in the width direction. In this embodiment, the arrangement of the mounting collar 14 and the connecting piece 15 makes the connection between the cross-arm body and the pole body 4 more secure and portable, which is advantageous in preventing the connection between the cross-arm body 1 and the pole body 4 from loosening due to vibration.
Based on the same inventive concept, the invention also provides an electric pole, which comprises an electric pole body 4 and the insulating cross arm, wherein the top of the electric pole body 4 is provided with a vent hole 41 and a avoiding hole 42, and one end of the sealing pipe 31, which is far away from the connecting piece 21, passes through the avoiding hole 42 and is positioned inside the electric pole body 4.
Compared with the prior art, the electric pole body 4 of the present invention has all the benefits of the insulating cross arm, and in addition, the ventilation holes 41 provided by the present invention can enable the heat dissipation of the sealing tube 31 in the electric pole body 4 to be smoother, and prevent the heat accumulation in the insulating cross arm.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. An electric pole, comprising an electric pole body (4) and an insulating cross arm, characterized in that the insulating cross arm comprises:
One end of the cross arm body (1) is connected with the electric pole body (4), a through hole (11) is formed in the cross arm body (1), and the length direction of the through hole (11) is parallel to the length direction of the cross arm body (1);
The vibration reduction assembly (2) comprises a connecting piece (21) and a buffer mechanism (22), wherein the connecting piece (21) is positioned at one end of the cross arm body (1) far away from the electric pole body (4) and is used for erecting a wire, and the connecting piece (21) is provided with an inserting section (211) which is inserted into the through hole (11) in a sliding manner;
the buffer mechanism (22) comprises a shock absorption rod (221) and a sealing cover (222), and the sealing cover (222) is covered on a port, close to the electric pole body (4), of the through hole (11); the vibration absorption rod (221) is arranged in the through hole (11) and is coaxially connected with the inserting section (211), and a first heat conduction liquid is filled between the vibration absorption rod (221) and the through hole (11); the peripheries of the two ends of the vibration absorption rod (221) are in sealing connection with the inner wall of the through hole (11), a plurality of vibration absorption sheets (225) are arranged on the periphery of the vibration absorption rod (221), and the vibration absorption sheets (225) are parallel to each other and are connected to the periphery of the vibration absorption rod (221) in a rocker arm shape;
The heat dissipation assembly (3) comprises a sealing tube (31), a liquid suction tube (32) and second heat conduction liquid, wherein both ends of the sealing tube (31) are sealed, the sealing tube (31) penetrates through the sealing cover (222), one end of the sealing tube extends into a gap between the vibration absorption rod (221) and the through hole (11), and the second heat conduction liquid is filled in the sealing tube (31); the liquid suction tube (32) is coaxially arranged in the sealing tube (31) and is adhered and fixed with the inner wall of the sealing tube (31), and the liquid suction tube (32) is of a capillary structure and is used for absorbing the second heat conduction liquid;
The heat dissipation assembly (3) further comprises an end cover (33), a heat dissipation fan (34) and a mounting ring (35) which are coaxially arranged in sequence from top to bottom, the mounting ring (35) is coaxially connected to the top of the electric pole body (4), and one end, far away from the connecting piece (21), of the sealing tube (31) is located below the mounting ring (35); the heat dissipation fan (34) comprises a plurality of fan blades which are uniformly arranged at intervals around a first axis, the top ends of the fan blades are connected with the end cover (33), each fan blade is rotatably connected with the top end face of the mounting ring (35) around the first axis, the middle part of the fan blade is bent towards the direction away from the first axis, smooth transition curved surfaces are formed from the middle part to the two ends of the fan blade, and a circulation gap is formed between the fan blades of any two adjacent fan blades;
The buffer mechanism (22) further comprises two vibration reduction springs (223), wherein the two vibration reduction springs (223) are arranged in the cross arm body (1) at intervals along the up-down direction, and the vibration reduction springs (223) are arranged between the cross arm body (1) and the inserting section (211) and are configured to have a pretightening force for centering the inserting section (211);
The cross arm body (1) comprises an insulating resin layer (12) and a plurality of fiber bundles (13) embedded in the insulating resin layer (12), wherein the through holes (11) are formed in the insulating resin layer (12), the extending direction of each fiber bundle (13) is parallel to the length direction of the through hole (11), and the fiber bundles (13) positioned at the top of the insulating resin layer (12) are configured to have pretension force for shrinking the insulating resin layer (12);
The buffer mechanism (22) further comprises a pressure variable sheet (224) made of rubber, the pressure variable sheet (224) is arranged at one end, far away from the sealing cover (222), of the shock absorption rod (221), the edge of the pressure variable sheet (224) is in sealing connection with the inner wall of the through hole (11), and the shock absorption rod (221) coaxially penetrates through the pressure variable sheet (224) and is in sealing connection with the pressure variable sheet (224);
The top of the electric pole body (4) is provided with a vent hole (41) and an avoidance hole (42), and one end, far away from the connecting piece (21), of the sealing tube (31) penetrates through the avoidance hole (42) and is positioned in the electric pole body (4);
The connecting piece (21) conducts vibration of a wire to the vibration absorbing rod (221), the vibration absorbing rod (221) moves back and forth along the axial direction of the vibration absorbing rod (221), the vibration absorbing piece (225) swings back and forth along with the movement of the vibration absorbing rod (221), the first heat conducting liquid absorbs heat generated by vibration of the vibration absorbing rod (221), the part of the sealing tube (31) located in the first heat conducting liquid is heated and warmed, the second heat conducting liquid at the corresponding part is heated and gasified, the second heat conducting liquid at the corresponding part moves towards the other end with lower temperature in the sealing tube (31), the second heat conducting liquid moving to the other end is condensed, the second heat conducting liquid is attached to the liquid absorbing tube (32) of a capillary structure, and flows back to one end of the sealing tube (31) located in the first heat conducting liquid along with the capillary action of the liquid absorbing tube (32), the heat of the sealing tube (31) is continuously dissipated by the vibration absorbing rod (221), and the heat of the cross arm (1) is continuously dissipated.
2. The pole according to claim 1, characterized in that the vibration-damping assembly (2) further comprises a hinge shaft provided in the middle of the insertion section (211), the connecting piece (21) is hinged with the cross arm body (1) through the hinge shaft, and the axial direction of the hinge shaft is perpendicular to the length direction of the connecting piece (21) and parallel to the horizontal direction.
3. The pole according to claim 1, wherein the cross arm body (1) further comprises an insulating rubber layer coated on the outer periphery of the insulating resin layer (12), and a plurality of shielding rings are coaxially and alternately arranged on the outer periphery of the insulating rubber layer, and each shielding ring is integrally formed with the insulating rubber.
4. The electric pole according to claim 1, characterized in that the buffer mechanism (22) further comprises a sealing ring made of rubber, an annular groove is formed in the inner wall of one end of the through hole (11) far away from the sealing cover (222), and the sealing ring is arranged in the annular groove and is closely abutted against the vibration absorbing rod (221).
5. The pole according to claim 1, wherein the cross arm body (1) is provided with a mounting hoop (14) and a connecting piece (15) adjacent to one end of the pole body (4), the mounting hoop (14) is hooped on the periphery of the pole body (4), the connecting piece (15) is used for connecting the mounting hoop (14) and the cross arm body (1), and the number of the connecting pieces (15) is two and is correspondingly distributed on two sides of the cross arm body (1) in the width direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410404920.3A CN117988615B (en) | 2024-04-07 | 2024-04-07 | Electric pole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410404920.3A CN117988615B (en) | 2024-04-07 | 2024-04-07 | Electric pole |
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| CN117988615B true CN117988615B (en) | 2024-06-07 |
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| KR101040169B1 (en) * | 2010-12-20 | 2011-06-16 | 김종선 | Distribution board box for very high voltage distribution line |
| CN112103891A (en) * | 2020-09-14 | 2020-12-18 | 陈建明 | Insulating cross arm for communication power |
| CN212507671U (en) * | 2020-05-14 | 2021-02-09 | 青岛众成电力设备有限公司 | Balanced type iron tower cross arm stores pylon |
| CN115425604A (en) * | 2022-09-20 | 2022-12-02 | 国网浙江省电力有限公司嵊泗县供电公司 | Adjustable shock-proof type electric power cross arm |
| CN117386175A (en) * | 2023-09-28 | 2024-01-12 | 山东电力工程咨询院有限公司 | Rapid assembling multidirectional energy consumption reinforcing device and method for power transmission tower nodes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210918437U (en) * | 2019-07-20 | 2020-07-03 | 浙江明辉电力设备有限公司 | Damping composite cross arm electric pole convenient for replacing cross arm |
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- 2024-04-07 CN CN202410404920.3A patent/CN117988615B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101040169B1 (en) * | 2010-12-20 | 2011-06-16 | 김종선 | Distribution board box for very high voltage distribution line |
| CN212507671U (en) * | 2020-05-14 | 2021-02-09 | 青岛众成电力设备有限公司 | Balanced type iron tower cross arm stores pylon |
| CN112103891A (en) * | 2020-09-14 | 2020-12-18 | 陈建明 | Insulating cross arm for communication power |
| CN115425604A (en) * | 2022-09-20 | 2022-12-02 | 国网浙江省电力有限公司嵊泗县供电公司 | Adjustable shock-proof type electric power cross arm |
| CN117386175A (en) * | 2023-09-28 | 2024-01-12 | 山东电力工程咨询院有限公司 | Rapid assembling multidirectional energy consumption reinforcing device and method for power transmission tower nodes |
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| CN117988615A (en) | 2024-05-07 |
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