CN201758253U - Overhaul frame - Google Patents

Abstract

The maintenance frame includes a frame body, a front hook, and an upper hook. The frame body consists of two right-angled Z-shaped supports formed by a horizontal frame, a vertical frame, and a base frame, fixedly connected together by connecting rods. The upper hook is movably connected to the vertical frame, and the front hook is movably connected to the horizontal frame. An extension frame is connected to the end of the base frame, and a steel cable connects the top of the vertical frame and the end of the extension frame. This maintenance frame provides workers with a near-ground-like working platform, thereby ensuring their safety, significantly reducing the time required to replace insulators and vibration dampers, reducing labor intensity, shortening power outage time, and improving work efficiency.

Description

Maintenance rack

technical field

The utility model relates to an overhaul frame used for overhauling power transmission lines, in particular to an overhaul frame used for replacing insulators and anti-vibration hammers.

Background technique

Replacing insulators is one of the more frequent high-altitude operations on poles (towers), especially when replacing insulators that are far away on tension-resistant poles and towers. Due to the long string of insulators, it is not easy for operators to climb on the cross-arm. In this case, the replacement of insulators will consume a lot of maintenance time and effort, thereby affecting the transmission time.

When replacing or installing the anti-vibration hammer, the position of the anti-vibration hammer is relatively far away from the cross arm. Even if the operator climbs on the cross arm, it is not easy to reach with his hands, so the labor intensity is unintentionally increased, and a lot of work time and energy are consumed. .

When changing cotter pins and spring pins that are farther away from the cross arm, the same problem also exists.

The above tasks can only be completed by skilled workers, and those who have participated in the work for a short period of time dare not complete these tasks because: 1), when climbing on the insulator, they are afraid that the insulator will turn around and slide down to the bottom of the insulator; 2), People who do not exercise regularly have relatively poor arm strength, and it is difficult to get up once they slip down; 3) When climbing onto the wire, the contact surface is small and the center of gravity is downward, basically relying on a point of the seat belt for support, which is not applicable Both hands display work; 4), safety is not guaranteed.

Contents of the invention

The purpose of the utility model is to provide an overhaul frame used for overhauling power transmission lines, so that the operation process of replacing insulators and anti-vibration hammers is safer and easier.

The maintenance frame of the utility model includes a frame body, a front hook and an upper hook. The frame body is composed of two right-angled Z-shaped brackets formed by a horizontal frame, a vertical frame and a bottom frame, and is connected by several parallel connecting rods. Two right-angle Z-shaped brackets are fixedly connected together, the upper hook is movably connected to the vertical frame, and the front hook is movably connected to the horizontal frame.

The upper hook and the front hook are respectively connected with the vertical frame and the horizontal frame through pins.

The overhaul frame may also include an extension frame, the extension frame is connected to the end of the bottom frame by pins, and a steel cable is connected between the top of the vertical frame and the end of the extension frame.

The using method of the maintenance frame of the present utility model is:

First, hoist the maintenance frame to the bottom of the cross arm of the tower, hang the upper hook on the maintenance side of the cross arm, and thread the pins so that the maintenance frame is suspended on the cross arm. Then hang the front hook on the upper side of the cross arm, and fasten it with pins to prevent it from coming out and play a fixed role. Use ropes to fasten the overlapping part of the maintenance frame and the cross arm to play the role of re-protection. The operator puts on the speed difference protector, descends from the vertical frame of the inspection frame to the inspection platform of the bottom frame, and connects the front end of the inspection frame with a rope to the cable, which plays a secondary anti-falling protection role. If it is necessary to lengthen the maintenance platform, firstly insert the extension frame into the front end of the bottom frame of the maintenance frame and fix it with pins, and then use steel cables to connect the upper end of the vertical frame of the maintenance frame with the extension frame to effectively relieve the gravity and prevent the extension frame from falling out.

The maintenance frame of the utility model is mainly applicable to the use of 35kV and 10kV linear tension rods (towers) when replacing insulators and replacing or adjusting anti-vibration hammers. The overhaul frame makes full use of the principle of mechanical levers, adopts the principle of multi-point force, and builds a simple working platform at high altitude, which ensures that the operators can use it at a long distance (1-1.8m) on the tower, and provides operators with A relatively easy work platform for near-ground work.

The overall weight of the maintenance frame of the utility model is about 26kg, light and strong, and easy to install. Using it can greatly shorten the working time for replacing insulators and anti-vibration hammers, thereby greatly reducing labor intensity, shortening power outage time, and improving work efficiency. The overhaul frame of the utility model is also suitable for work such as replacement of cotter pins and spring pins, inspection of circuits, debugging and installation of new frame circuits.

The most important point of the maintenance frame of the utility model is to ensure the life safety of the operating personnel, and the operating personnel of new and old comrades can use it.

Description of drawings

Fig. 1 is a schematic structural view of the maintenance rack of the present invention.

Detailed ways

The structure of the overhaul stand is as shown in Figure 1, which is composed of a frame body 6, a front hook 3, an upper hook 1 and an extension frame 10.

The frame body 6 is two right-angled Z-shaped supports, including a horizontal frame 2, a vertical frame 5 and an underframe 8, and is formed by welding galvanized steel pipes. A plurality of connecting rods 7 are welded in parallel between the two brackets for connection and reinforcement. Between the horizontal frame 2 and the vertical frame 5, and between the vertical frame 5 and the underframe 8, the support rods are respectively used for oblique reinforcement.

A ring is arranged on the side of the vertical frame 5, and the upper hook 1 can be inserted in the ring, and connected with the vertical frame 5 through the pin 4 as a whole. The front hook 3 can be inserted in the cross frame 2, and is fixedly connected with the cross frame 2 with the pin 4.

The extension frame 10 can be inserted into the end of the underframe 8 and fixedly connected with the pin 4 . Hanging rings are provided at the ends of the extension frame 10 and the vertical frame 5 , and a steel cable 9 is passed between the hanging rings and tightened to further fix the extension frame 10 .

Claims (4)

1. repairing frame, comprise support body (6), front hook (3) and last hook (1), it is characterized in that described support body (6) is made up of 2 right angle Z type supports with crossbearer (2), perpendicular frame (5) and underframe (8) formation, and 2 right angle Z type supports are fixed together with several parallel connecting rods (7), last hook (1) is movably connected on the described perpendicular frame (5), and front hook (3) flexibly connects with described crossbearer (2).

2. repairing frame according to claim 1 is characterized in that the described hook (1) of going up is connected on the perpendicular frame (5) by pin (4).

3. repairing frame according to claim 1 is characterized in that described front hook (3) is connected with crossbearer (2) with pin (4).

4. repairing frame according to claim 1, it is characterized in that also including a lengthening frame (10), described lengthening frame (10) is connected the end of underframe (8) with pin (4), and is connected with cable wire (9) between perpendicular frame (5) top and lengthening frame (10) end.

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