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CN-224228362-U - Transmission line iron tower insulating cross arm

CN224228362UCN 224228362 UCN224228362 UCN 224228362UCN-224228362-U

Abstract

The utility model relates to an insulating cross arm of a power transmission line iron tower, which comprises an auxiliary fixing assembly, a hoop assembly, two double-headed screws, two brackets and a plurality of insulators arranged on the two brackets, wherein the auxiliary fixing assembly and the hoop assembly are sleeved outside a telegraph pole and clamped and fixed with the telegraph pole, the two double-headed screws are respectively inserted into two opposite sides of the top of the auxiliary fixing assembly, the end parts of the double-headed screws penetrate through adjacent brackets, and the end parts of the double-headed screws are sleeved with two nuts which are in threaded connection with the two nuts and are used for fixing the adjacent brackets. The auxiliary fixing component and the anchor ear component are fixed at different positions of the telegraph pole in a matched mode, and the auxiliary fixing component and the anchor ear component can be mutually assisted and kept fixed, so that the overall structural stability of the insulating cross arm is enhanced, the stress is uniform, the service life of the insulating cross arm is effectively prolonged, the bracket can be easily detached only by loosening nuts on the double-headed screw rod when the insulator needs to be replaced or maintained, and the whole insulating cross arm is not required to be disassembled on a large scale.

Inventors

  • WANG MEINA
  • MA HAITAO
  • Bai Huanying
  • LI ENLIANG
  • LI WEIBO

Assignees

  • 河北迈捷电力器材有限公司

Dates

Publication Date
20260512
Application Date
20250610

Claims (6)

  1. 1. The utility model provides a transmission line iron tower insulating cross arm, includes two brackets (50), two all install on bracket (50) and be fixed with insulator (60), its characterized in that still includes auxiliary fixation subassembly (20), staple bolt subassembly (30) and two double-end screw rods (40), auxiliary fixation subassembly (20) and staple bolt subassembly (30) are all overlapped and are established in the wire pole (10) outside and centre gripping fixed with it, two double-end screw rods (40) are inserted respectively and are established in the opposite both sides in auxiliary fixation subassembly (20) top, and the tip of double-end screw rod (40) passes adjacent bracket (50), and the tip cover of double-end screw rod (40) is equipped with two nuts with its threaded connection and be used for fixed adjacent bracket (50).
  2. 2. The utility model provides a transmission line iron tower insulating cross arm of claim 1, wherein auxiliary fixing subassembly (20) include two collet (21) and two locating support (22), two collet (21) set up in the opposite both sides of wire pole (10) with mutual symmetry, and both ends of collet (21) all are formed with clamping part (211) that contact with wire pole (10) outer wall, and the opposite side of two collet (21) all is formed with connecting seat (212), connecting seat (212) and locating support (22) bottom fixed connection, the middle section and staple bolt subassembly (30) cooperation of locating support (22) are connected, the top of staple bolt subassembly (30) are passed and welded fastening with it by adjacent double-end screw (40).
  3. 3. The insulated cross arm of the power transmission line iron tower according to claim 2, wherein clamping parts (211) formed at two ends of the bottom support (21) are mutually symmetrical and inwards inclined at a certain angle, and anti-skid patterns or anti-skid pads are formed on the inner side walls of the clamping parts (211).
  4. 4. The iron tower insulating cross arm for the power transmission line according to claim 2 or 3, wherein the hoop assembly (30) comprises an even number of arc-shaped bases (31), the inner wall of each arc-shaped base (31) is contacted with the telegraph pole (10), one end, close to the positioning support (22), of each arc-shaped base (31) is provided with a positioning support connecting part (33) in fit contact with the positioning support (22), one end, far away from the positioning support (22), of each arc-shaped base (31) is provided with an arc-shaped base connecting part (32), each arc-shaped base connecting part (32) is fixedly connected with the adjacent positioning support (22) through a fastener, and each two adjacent arc-shaped base connecting parts (32) are fixedly connected through a fastener.
  5. 5. The transmission line pylon insulation cross arm of claim 4, wherein each of the arcuate seats (31) is also formed with anti-skid patterns or bonded with anti-skid pads on the inner wall.
  6. 6. The transmission line iron tower insulating cross arm according to claim 4, wherein a round hole is formed in the middle section of the positioning support (22), a connecting hole (331) facing the round hole of the positioning support (22) is formed in the connecting portion (33) of the positioning support, and the connecting hole (331) is a slotted hole or an elliptical hole.

Description

Transmission line iron tower insulating cross arm Technical Field The utility model relates to the technical field of edge cross arms, in particular to an insulating cross arm of a power transmission line iron tower. Background The insulating cross arm is a key component for supporting and fixing insulators in the transmission line iron tower, and has the core effects of isolating high-voltage wires from the iron tower main body through insulating materials or structures, preventing current from being grounded through the iron tower, ensuring the safety of power transmission, bearing the mechanical loads such as dead weight of the wires, wind load, icing and the like, and maintaining the spacing and sag stability of the wires. Traditional transmission line iron tower insulating cross arm includes the angle bar of the horizontal fixed in wire pole top and the insulator of installing on the angle bar, and is common to fasten two symmetrical angle bar connecting clamps on the wire pole through the bolt. However, the design has certain defects that under the conditions that the surface of a telegraph pole (or an upright post of an iron tower) is irregular and local bulges or depressions exist, the angle iron in the traditional insulating cross arm is difficult to realize tight fit and stable installation, and the problems of unstable installation, uneven stress and the like are easily caused, so that the stability of the installation of the whole structure of the insulating cross arm is affected. Disclosure of utility model (One) solving the technical problems The utility model provides an insulating cross arm of a power transmission line iron tower, which solves the problems that the insulating cross arm in the prior art is easy to generate unstable installation and uneven stress when being used for the condition that the surface of a telegraph pole or an iron tower upright post is irregular and has local bulges or pits, and further the installation stability of the whole structure of the insulating cross arm is affected. (II) technical scheme The technical scheme is that the insulating cross arm of the power transmission line iron tower comprises an auxiliary fixing assembly, a hoop assembly, two double-headed screws, two brackets and a plurality of insulators arranged on the two brackets, wherein the auxiliary fixing assembly and the hoop assembly are sleeved outside a telegraph pole and clamped and fixed with the telegraph pole, the two double-headed screws are respectively inserted into two opposite sides of the top of the auxiliary fixing assembly, the end parts of the double-headed screws penetrate through adjacent brackets, and the end parts of the double-headed screws are sleeved with two nuts which are in threaded connection with the double-headed screws and are used for fixing the adjacent brackets. Preferably, the auxiliary fixing component comprises two bottom brackets and two positioning brackets, the two bottom brackets are symmetrically arranged on two opposite sides of the telegraph pole, the two ends of the bottom brackets are respectively provided with a clamping part which is contacted with the outer wall of the telegraph pole, the opposite sides of the two bottom brackets are respectively provided with a connecting seat, the connecting seats are fixedly connected with the bottom ends of the positioning brackets, the middle section of the positioning brackets is matched and connected with the hoop component, the top ends of the hoop component are penetrated by adjacent double-headed screws and are welded and fixed with the adjacent double-headed screws, the clamping parts formed at the two ends of the bottom brackets are symmetrically inclined inwards by a certain angle, and the inner side walls of the clamping parts are provided with anti-skid patterns or anti-skid pads. In a further preferred embodiment, the anchor ear assembly comprises an even number of arc-shaped bases, each arc-shaped base has its inner wall contacted with the telegraph pole, one end of the arc-shaped base, which is close to the positioning bracket, is provided with a positioning bracket connecting part contacted with the positioning bracket in a fitting manner, one end of the arc-shaped base, which is far away from the positioning bracket, is provided with an arc-shaped base connecting part, the arc-shaped base connecting part is fixedly connected with the adjacent positioning bracket through a fastener, each two adjacent arc-shaped base connecting parts are fixedly connected through a fastener, and each arc-shaped base has an anti-skid pattern or an anti-skid pad adhered on its inner wall. In a further preferred embodiment, a circular hole is formed in the middle section of the positioning bracket, a connecting hole facing the circular hole of the positioning bracket is formed in the connecting portion of the positioning bracket, and the connecting hole is a oblong hole or an elliptical hole. (III) beneficial effects