CN201918653U - Protective bracket for overhaul of high-voltage disconnectors - Google Patents

Abstract

The utility model relates to a protective bracket for maintenance of a high-voltage isolating switch, which belongs to the technical field of power supply maintenance. The technical solution is to include a base (1) and a protective rod (2), the base is provided with a protective rod socket, the protective rod is inserted into the protective rod socket, the base and the protective rod are fixedly connected, and the protective rod is provided with a A safety belt hanging point (4) is arranged, and a hook (5) is arranged on the top of the protective bar. By adopting the utility model, the practice of using insulators as the fixing points of seat belts can be completely abandoned, potential safety hazards can be eliminated, and accidents can be avoided. The utility model has the characteristics of simple structure, easy realization, and good effect, and the cost is low, which can save a lot of money , suitable for large-scale promotion.

Description

High-voltage isolating switch maintenance protection bracket

Technical field:

The utility model relates to a protective bracket for maintenance of a high-voltage isolating switch, which belongs to the technical field of power supply maintenance.

Background technique

At present, when carrying out daily maintenance and overhaul of 35kV and above knife gates, according to safety regulations, the maintenance of knife gates is a high-altitude operation, and anti-falling measures must be taken. Traditional anti-falling measures mainly include setting up scaffolding, using aerial work vehicles, and lifting platforms. or take other measures to prevent falling. Through on-the-spot practice, these methods are often limited by working hours and workplaces and cannot be carried out. Therefore, the method of hanging safety belts is more often used for knife gate maintenance. Article 15.1.8 of the "State Grid Corporation Electric Power Safety Work Regulations (Transformation Part)" stipulates that "the hook or rope of the safety belt should be on a strong and firm frame, or on a steel wire rope specially used for the safety belt, and should be hung high and low. The method used. It is forbidden to hang on moving or unstable objects, such as isolating switch (knife switch) supporting insulators, CVT insulators, busbar post insulators, lightning arrester post insulators, etc. But in actual work, some models (such as GW5 type) Due to the design and construction reasons of the knife gate, there is no safety belt hanging point that meets the regulations, and the traditional method is either time-consuming and laborious or violates safety regulations. It is often difficult to fully ensure the smooth progress of the work and the personal safety of the operators at the job site.

Utility model content

The purpose of the utility model is to provide a maintenance protection bracket for a high-voltage isolating switch, which is convenient to carry, easy to install, safe and reliable, and solves the above-mentioned problems in the background technology.

The technical scheme of the utility model is: a high-voltage isolating switch maintenance protection bracket, including a base and a protection rod, the base is provided with a protection rod socket, the protection rod is inserted into the protection rod socket, and the base and the protection rod are fixed Connection, safety belt hanging points are provided on the protection bar.

A hook is arranged on the top of the protective bar.

The protective rod is a protective rod made of insulating material, and the protective rod is matched with the protective rod socket in clearance, and is provided with a pin to fix the protective rod and the protective rod socket. When using, first fix the base on the channel steel, then insert the protective bar into the socket of the base, fix the bottom with pins, and finally hang the safety belt to the hanging point on the protective bar to start working, easy to carry, Easy to install, safe and reliable.

The protective rod socket is set at a position deviated from the center of the base, which has the advantage of effectively preventing the insulating rod from touching the horizontal connecting rod of the knife switch.

The beneficial effects of the utility model:

① It has a wide range of applications. After statistical analysis of the existing structure, the distance between the two openings on the surface of the base is set at 250mm-400mm, and the screw length is 200mm to ensure its versatility (after field trials, 80--160 channel steel bases Both beams can be used); it can be used not only for knife switch maintenance, but also for some transformer maintenance. ②Easy installation, the top of the fastening screw is designed with a small protrusion, which matches with the hole on the base to ensure that the fastening screw will not rotate; the fastening nut adopts a tool-free design, and the fastening effect can be achieved by hand-tightening; installation After the completion, the adjacent two-phase switch can be overhauled, and the staff can move freely. ③The installation time is short. According to field tests, 1-2 people can complete the installation within 4 minutes. The fasteners at the bottom of the base adopt the design of "one slot and one hole", which not only saves installation time but also eliminates the hidden danger of accidental parts falling; Compared with the traditional method, it saves more than 90% of the time and greatly improves the labor efficiency; the effect is especially obvious when the power outage is short and the workload is heavy. ④It is small in size and weighs about 5 kg, which is only 1% of the weight of the traditional maintenance platform. It is easy to carry and load, and does not need to be equipped with a separate transport vehicle and crane, which not only reduces labor intensity but also saves work costs. ⑤ The structure is simple and convenient to manufacture and the cost is low, which is convenient for popularization and application.

By adopting the utility model, the practice of using insulators as the fixing points of seat belts can be completely abandoned, potential safety hazards can be eliminated, and accidents can be avoided. The utility model has the characteristics of simple structure, easy realization, and good effect, and the cost is low, which can save a lot of money , suitable for large-scale promotion.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model;

Among the figure: base 1, protective rod 2, safety belt hanging point 4, hook 5.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

The protection bracket for maintenance of the high-voltage isolating switch includes a base 1 and a protection rod 2. There is a protection rod socket on the base, and the protection rod is inserted into the protection rod socket. The base and the protection rod are fixedly connected. There are safety belt anchor points4. A hook 5 is provided on the top of the protective bar. The protective rod is a protective rod made of insulating material, and the protective rod is matched with the protective rod socket in clearance, and is provided with a pin to fix the protective rod and the protective rod socket. When using, first fix the base on the channel steel, then insert the protective bar into the socket of the base, fix the bottom with pins, and finally hang the safety belt to the hanging point on the protective bar to start working, easy to carry, Easy to install, safe and reliable. The protective rod socket is set at a position deviated from the center of the base, which has the advantage of effectively preventing the insulating rod from touching the horizontal connecting rod of the knife switch.

Claims (4)

1. a high voltage isolator overhauls protective stent, it is characterized in that comprising pedestal (1) and fender rod (2), pedestal is provided with the fender rod jack, and fender rod is inserted in the fender rod jack, fixedly connected between pedestal and the fender rod, fender rod is provided with safety belt hanging point (4).

2. the high voltage isolator maintenance protective stent according to claim 1 is characterized in that fender rod is the fender rod that the insulation material is made, fender rod and fender rod jack matched in clearance, and be provided with pin, fixed protection bar and fender rod jack.

3. according to claim 1 or 2 described high voltage isolator maintenance protective stents, it is characterized in that the fender rod jack is arranged on the position of departing from the pedestal center.

4. according to claim 1 or 2 described high voltage isolator maintenance protective stents, it is characterized in that the top of fender rod is provided with hook (5).

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