CN205791207U - Transmission line of electricity Portable insulation rolls off the production line hanging ladder - Google Patents

Abstract

The utility model belongs to electric power construction equipment, in particular to a portable insulating off-line hanging ladder for transmission lines. The outer circumference of the upper end of each insulating rod (1) is provided with a positioning hole (1-1) at the upper end of the insulating rod and a lower end. Positioning step holes (1-2) at the lower end of the insulating rods are provided on the outer circumference of the side, and the two sides of each insulating rod (1) are respectively evenly distributed and threaded to connect with multiple insulating pedals (4), and multiple insulating rods (1) The plug-in connection between them, the positioning step hole (1‑2) at the lower end of the insulating rod inside the connection is equipped with a fixed pin (2), and the upper end of the fixed pin (2) is provided with a fixed pin upper boss (2‑1), The end of the top insulating rod (1) is fixedly equipped with a hook seat (5), and the upper end of the hook seat (5) is fixed with a U-shaped hook (9) with a butterfly bolt (6), and the U-shaped hook (9) ) is equipped with a locking screw (8). The portable insulated off-line hanging ladder for transmission lines has a simple structure, is light and easy to carry, and is a safe and reliable off-line tool.

Description

Portable insulation off-line hanging ladder for transmission lines

technical field

The utility model belongs to electric power construction equipment, in particular to a portable insulation off-line hanging ladder for power transmission lines.

Background technique

In the past, high-altitude operators for power transmission maintenance have always used soft ladders to work off-line of synthetic insulator strings on power transmission overhead lines. Because the soft ladder often shakes and stretches during use, it is easy for the staff to step on the composite insulator during the off-line process. Since the material of the composite insulator is silicone rubber, cracks occur in the silicone rubber. In addition, during long-term operation, the insulators are corroded by water and steam, which may make the insulators brittle and cause major accidents. In addition, when working in windy weather, due to the light weight and large volume of the ladder, it is difficult and easy to use the wires of the ladder. Time is wasted, and at the same time, when the staff carry the ladder up and down the pole tower, it is easy to hook up with the foot nails. When using the soft ladder to go off the assembly line, the staff will be afraid due to the swing, and the fixing of the soft ladder and the cross arm needs to be manually tied with a small rope, which is also inconvenient and unsafe.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned technical deficiencies, and to provide a portable insulated off-line hanging ladder for transmission lines that is simple in structure, can reduce the risk factor of operation, and is safe and reliable.

The technical scheme adopted by the utility model to solve the technical problem is: the portable insulated off-line hanging ladder of the transmission line includes an insulating rod, a spring, a fixed pin, an insulated pedal, a hook seat, a butterfly bolt, a U-shaped hook, and a locking screw. The outer circumference of the upper end of each insulating rod is provided with a positioning hole at the upper end of the insulating rod, and the outer circumference of the lower end of the insulating rod is provided with a positioning step hole at the lower end of the insulating rod. Insulated pedals, plug-in connection between multiple insulating rods, fixed pins are movable in the positioning step holes at the lower ends of the insulating rods on the inner side of the connection, the upper end of the fixed pins is provided with a boss on the fixed pins, and the springs are set on the fixed pins. The lower end is press-fitted on the inner wall of the insulating rod on the inner side of the joint, the upper end of the spring is pressed on the upper boss of the fixing pin, and the upper boss of the fixing pin is respectively snapped into the upper positioning hole and the upper end of the insulating rod on the outer side of the joint. The lower end of the inner insulation rod is positioned in the step hole to limit the position. The end of the top insulation rod is fixed with a hook seat, and the upper end of the hook seat is fixed with a butterfly bolt. A U-shaped hook is installed on the U-shaped hook. screw.

The beneficial effects of the utility model are: the portable insulated off-line hanging ladder for transmission lines has a simple structure, is light and easy to carry, can replace the soft ladder and has good stability, reduces the labor intensity of the staff, and improves the work quality and safety factor. A safe and reliable offline tool.

Description of drawings

The following will be described in detail with embodiments in conjunction with the accompanying drawings.

Figure 1 is a structural diagram of a portable insulated off-line hanging ladder for transmission lines.

Fig. 2 is a view from the direction of P in Fig. 1 .

Fig. 3 is an enlarged view of the I place of Fig. 1 .

In the figure, 1-insulating rod; 1-1-positioning hole at the upper end of the insulating rod; 1-2-positioning step hole at the lower end of the insulating rod; 2-fixing pin; 2-1-boss on the fixing pin; 3-spring; 4- Insulated pedal; 5-hook seat; 6-wing bolt; 7-washer; 8-locking screw; 9-U-shaped hook.

detailed description

Embodiment, with reference to accompanying drawing 1～3, The outer circumference of each insulating rod 1 of the portable insulation off-line hanging ladder of the transmission line is provided with an insulating rod upper end positioning hole 1-1 on the outer circumference of the upper end side, and an insulating rod lower end positioning step hole 1-2 is provided on the outer circumference of the lower end side. Both sides of each insulating rod 1 are respectively evenly distributed and threaded and connected with a plurality of insulating pedals 4 . A plurality of insulating rods 1 are inserted and connected, and the lower end of the insulating rod 1 on the inside of the joint is fixed with a fixed pin 2 in the fixed positioning step hole 1-2, and the upper end of the fixed pin 2 is provided with a fixed pin upper boss 2- 1. A spring 3 is set on the fixed pin 2, the lower end of the spring 3 is pressed on the inner hole wall of the insulating rod 1 inside the joint, the upper end of the spring 3 is pressed on the upper shoulder of the fixed pin 2, and the upper boss of the fixed pin 2- 1 are clamped respectively in the positioning hole 1-1 at the upper end of the insulating rod 1 on the outside of the joint and in the positioning step hole 1-2 at the lower end of the insulating rod 1 at the inner side of the connection. The upper end of the insulating rod 1 at the top is fixedly equipped with a hook seat 5, and the hook seat 5 upper end is fixed with a U-shaped hook 9 with a butterfly bolt 6, and a locking screw 8 and a washer 7 are housed on the U-shaped hook 9.

The method of using the portable insulation off-line hanging ladder for transmission lines is as follows: when in use, a plurality of insulating rods 1 are inserted and connected, and the connection is limited by a fixed pin 2 and a spring 3, and the two sides of the insulating rod 1 are threaded and installed with insulating feet. Pedal 4, U-shaped hook 9 hooks on the iron tower cross-arm angle iron and fixes with locking screw rod 8 and washer 7, when the operator steps on the insulated pedal 4 when going down the wire, the operation is carried out, which shortens the working time and improves the production efficiency. Work efficiency, reduce the risk factor and fear in the operation, and ensure the safety of personal and equipment.

Claims (1)

1. A portable insulation off-line hanging ladder for transmission lines, including insulating rods (1), springs (3), fixing pins (2), insulating pedals (4), hook seats (5), and butterfly bolts (6) , U-shaped hook (9), locking screw (8), characterized in that the outer circumference of the upper end of each insulating rod (1) is provided with a positioning hole (1-1) at the upper end of the insulating rod, and an outer circumference of the lower end There are positioning step holes (1-2) at the lower end of the insulating rods on the upper part, and the two sides of each insulating rod (1) are respectively evenly distributed and threaded to connect with multiple insulating pedals (4), and the multiple insulating rods (1) are inserted The fixed pin (2) is movable in the positioning step hole (1-2) at the lower end of the insulating rod inside the joint, and the upper end of the fixed pin (2) is provided with a fixed pin upper boss (2-1), and the fixed pin ( 2) Set the spring (3) on top, the lower end of the spring (3) is pressed on the inner hole wall of the insulating rod (1) inside the joint, and the upper end of the spring (3) is pressed on the upper boss (2) of the fixed pin -1), the upper boss of the fixing pin (2-1) is respectively clamped in the upper positioning hole (1-1) of the insulating rod on the outer side of the connection and the middle limit of the lower positioning step hole (1-2) of the insulating rod on the inner side. position, the end of the top insulating rod (1) is fixed with a hook seat (5), and the upper end of the hook seat (5) is fixed with a U-shaped hook (9) with a butterfly bolt (6), and the U-shaped hook (9) is equipped with a locking screw (8).