CN-224213882-U - Three-pass door type steel tube rod

Abstract

The utility model discloses a three-pass gate-type steel pipe pole, which belongs to the field of high-voltage transmission line towers and comprises a first main pole, wherein a scissor support is fixedly sleeved outside the first main pole, the scissor support is formed by intersecting two insulating poles, cylindrical sleeves are arranged at four end points of the scissor support, and each two sleeves are a group and are sleeved outside the first main pole and the second main pole. The three-loop power supply circuit is formed by adopting the mode that the first main rod and the second main rod are separately provided with the three wire cross rods, and the mode that the three-loop circuit is provided with the tower type power supply circuit can not influence the operation of other two-loop circuits under the condition that any one loop circuit is subjected to power failure maintenance, so that the condition that the two-loop circuits are closed for ensuring personnel maintenance safety is avoided, and the problem that only one loop circuit is provided with power in the maintenance process and has extremely high potential safety hazard is solved.

Inventors

• LI QINGJUN
• CHEN TONG
• SHEN LIULIU
• JIA HAIJUN

Assignees

• 滨州市沾化区海能热电有限公司
• 山东宏桥新型材料有限公司

Dates

Publication Date

20260508

Application Date

20250227

Claims (2)

1. 1. The three-pass door-type steel pipe rod is characterized by comprising a first main rod (1), wherein a scissor support (2) is fixedly sleeved outside the first main rod (1), the scissor support (2) is formed by intersecting two insulating rods, cylindrical sleeves are arranged at four end points of the scissor support (2), and each two sleeves are a group of sleeves sleeved outside the first main rod (1) and the second main rod (3); The outside of the first main rod (1) and the second main rod (3) are provided with three brackets (4) in a threaded manner, each two brackets (4) are in a group, the top of each group of brackets (4) is provided with a wire cross arm (5) in a threaded manner, two ends of each wire cross arm (5) are respectively and independently connected with the first main rod (1) and the second main rod (3) through the brackets (4), and wire hanging points for installing insulators are respectively arranged below the left end and the right end of each wire cross arm (5); the overhead ground wire cross arm structure is characterized in that overhead ground wire cross bars (6) are fixedly mounted on the outer walls of the first main rod (1) and the second main rod (3) on the side away from each other, the two overhead ground wire cross bars (6) and the three wire cross arms (5) are vertically arranged and located on the same vertical line, and tower bases (7) are fixedly mounted at the bottoms of the first main rod (1) and the second main rod (3).
2. 2. The three-back door type steel tube rod according to claim 1, wherein the three wire cross arms (5) are respectively provided with a hollowed-out groove inside.

Description

Three-pass door type steel tube rod Technical Field The utility model relates to the field of high-voltage transmission line towers, in particular to a three-pass gate type steel pipe pole. Background In order to avoid the danger of corona discharge and induction electrostatic field to people, the towers used for high-voltage and ultra-high-voltage transmission lines must have enough heights, and the transmission lines erected on the towers must be separated by a considerable distance, and the structural materials can be divided into a wood structure, a steel structure, an aluminum alloy structure and a reinforced concrete structure tower according to the structural materials. Under the scheme of three-circuit power supply lines, when the traditional tower-type high-voltage power transmission line is erected for maintenance, the operation mode that one circuit line is stopped and the other two circuits are operated is not achieved for ensuring the safety of maintenance staff, at least the two circuits are stopped to avoid the occurrence of electric shock accidents of the maintenance staff, and the operation of the rest one circuit line is extremely unreliable, so that the three-circuit door-shaped steel tube rod is provided for solving the problems. Disclosure of utility model In order to overcome the problems that in the prior art, a three-circuit line needs to be stopped for two circuits when overhauling, so that the single-circuit power supply pressure is high and the potential safety hazard is caused, the utility model provides a three-circuit gate-type steel pipe rod which comprises a first main rod, wherein a scissor support is fixedly sleeved outside the first main rod, the scissor support is formed by intersecting two insulating rods, cylindrical sleeves are arranged at four end points of the scissor support, and each two sleeves are a group of sleeves which are sleeved outside the first main rod and the second main rod; The outer parts of the first main rod and the second main rod are respectively provided with three brackets in a threaded manner, each two brackets are in a group, the top of each group of brackets is respectively provided with a wire cross arm in a threaded manner, two ends of each wire cross arm are respectively and independently connected with the first main rod and the second main rod through the brackets, and wire hanging points for installing insulators are respectively arranged below the left end and the right end of each wire cross arm; the outer walls of one sides of the first main rod and the second main rod which are separated from each other are fixedly provided with overhead ground wire cross bars, two overhead ground wire cross bars and three wire cross bars are vertically arranged and positioned on the same vertical line, and tower bases are fixedly arranged at the bottoms of the first main rod and the second main rod. Preferably, hollow grooves are formed in the three wire cross arms. The beneficial effects are that: the technical scheme of the utility model has the following beneficial effects: (1) The three-loop power supply circuit is formed by adopting the mode that the first main rod and the second main rod are separately erected to form three wire cross rods, and the mode that the three-loop circuit is erected by the tower type can not influence the operation of other two-loop circuits under the condition that any loop circuit is subjected to power failure maintenance, so that the condition that the two-loop circuits are closed for ensuring personnel maintenance safety is avoided, and the problem that only one-loop circuit is powered with extremely high potential safety hazard in the maintenance process is solved. (2) The first mobile jib and second mobile jib are connected simultaneously to the bracing that adopts the insulating rod to constitute to promote stability, have ensured holistic stability when having reduced weight, have that the appearance is pleasing to the eye, area is few, construction maintenance is simple and convenient and the characteristics that the cost is lower, also compare swiftly in current tower type when changing ageing corrosion position, have good economic index. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic diagram of the structure of the present utility model; Fig. 2 is a front view of the structure of the present utility model. In the figure, 1, a first main rod, 2, a scissor support, 3, a second main rod, 4, a bracket, 5, a wire cross arm, 6, an overhead ground wi