CN203826824U - Single holding pole for replacing disconnecting link - Google Patents

Abstract

The utility model discloses a single holding pole for replacing a knife switch, and the technical problem to be solved is that the holding pole used in the construction method for replacing the knife gate in the existing Central Plains operating substation has shortcomings in the background technology. The adopted technical scheme is as follows: a single holding rod for replacing the knife switch, including an upper column, a lower column, a suspension head and a fixing seat; the upper column and the lower column are connected in a detachable manner, The suspension head is arranged at the top of the upper column, and the fixing seat is arranged at the bottom of the lower column; the suspension head is provided with lifting lugs. Advantages: 1. The construction method is simple, labor and time are saved, the pole is small in size and light in weight, and it is easy to transport, carry, assemble and disassemble. 2. It is convenient to carry, carry and assemble in the running substation, and the disassembly and assembly are lengthened, and the operability is strong. 3. The safety factor ≥ 2.5 times is controllable, which is controllable and controllable for the safety of construction personnel and the safety of operating equipment.

Description

A single holding rod for changing the knife switch

technical field

The utility model relates to a single holding rod for replacing a knife switch, in particular to a single holding rod for replacing or newly installing a 220KV and 110KV knife switch, which belongs to the configuration of lifting tools.

Background technique

The construction method of replacing the knife switch in the original operating substation, 220kV, 110kV knife switch group, the new installation adopts a Ф10 cm ordinary steel pipe holding pole, 6.5 meters long, cannot be segmented, transported by large vehicles, enters the operating substation and lifts to the 2nd floor platform, extended Use the lifting process to ensure that the interval space satisfies the safe distance to hold the pole and lift it into the air. 12 people cooperate with the operation at the same time and command in a unified manner. The holding pole was moved to the root of the orchid frame of the knife gate and tied, the wind rope was fixed, unified cooperation, unified command 1 person, 4 people for transportation and assembly, 2 people for climbing operations, 4 people for lifting and traction, and the replacement of 1 group of knife gates was completed. The method is to move to the 2 sets of knife gates and prepare for lifting.

shortcoming:

1. Self-made processing, iron steel pipe holding pole, no reliable safety factor, no test for lifting load, relatively high risk and hidden danger. 2. The entire 6.5-meter-long pole is inconvenient to carry and must be transported by a large vehicle. 3. The 6.5-meter steel pipe holding pole has a large turning radius and limited upper and lower space in the operating substation, which poses a greater safety risk to the operation of the equipment. 4. There are 12 people involved in the construction work. The labor intensity of the personnel is high, and it is easy to damage the knife gate porcelain vase. The construction method is cumbersome. 5. The construction efficiency is low, the construction process is difficult, there are many risk factors for personal safety and equipment safety, and the safety technical and economic indicators are difficult to control.

Contents of the invention

The technical problem to be solved by the utility model is: there are disadvantages in the background technology of the holding pole used in the construction method of replacing the knife switch in the original operating substation in the existing environment.

The purpose of the utility model is to provide a single holding rod for replacing a knife switch.

The technical scheme that the utility model adopts for solving the problems of the technologies described above is as follows:

A single pole for replacing a knife switch, including an upper column, a lower column, a suspension head and a fixing seat; the upper column and the lower column are connected in a detachable manner, and the suspension head is arranged on the upper column The top end, the fixing seat is arranged at the bottom end of the lower column; the suspension head is provided with lifting lugs.

The upper column and the lower column described in the utility model are all made of aluminum alloy materials in the prior art.

The top of the suspension head of the utility model is provided with no less than two rope loops; the rope loops are arranged symmetrically. The utility model is provided with the purpose of the rope loop at the top of the suspension head to make the utility model hold the pole more securely.

The upper column and the lower column described in the utility model are telescopic rods. The upper and lower columns of the utility model adopt telescopic rods in order to be better suitable for replacement at different heights, expand their application range and reuse rate, and at the same time be convenient to carry, reduce the working space, and have a wider application range.

The fixing seat described in the utility model is arranged at the bottom of the lower column, and the earrings on both sides of the fixing seat adopt U-shaped rings to reliably connect and fix with the root of the equipment support.

Using the pole of the utility model, the process method of replacing the 220kV knife switch group:

In the construction of the reconstruction and expansion project, especially in the operation of the second-floor platform interval of the substation, the work of replacing the knife switch when the power is off, the adjacent two sides are running at intervals, and the construction work of replacing the 220kV knife switch uses a single combination and a new aluminum alloy tubular holding pole. The wall thickness of the pole is 0.5 cm, the diameter of the pole is 8 cm, and it is divided into two sections, each section is 2.5 meters, plus the base is 0.5 meters, the top cap is 0.5 meters, the total length is 6 meters, and the total weight of the pole is 20 kg. During the construction process, 1 person commanded, 2 people worked at heights, 4 people transported and assembled, transported and assembled the porcelain vase, fixed the fixing seat on the second-floor platform with bolts, and fixed it on the second-floor platform with ropes passing through the rope loop, and chain hoists Hoisting.

Compared with the prior art, the utility model has the following advantages: 1. The construction method is simple, labor and time are saved, the holding pole is small in size, light in weight, and convenient for transportation, carrying, assembly and disassembly. 2. It is convenient to carry, carry and assemble in the running substation, and the disassembly and assembly are lengthened, and the operability is strong. 3. The safety factor ≥ 2.5 times is controllable, which is controllable and controllable for the safety of construction personnel and the safety of operating equipment. 4. In the specific environment of the operating substation, the on-site layout combined with the characteristics of the equipment structure can be controlled in a small and limited space to ensure the safety of the person and play a reliable, controllable and controllable role in the protection and safety of the equipment.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Figure 2 is a schematic structural view of the suspension head.

Wherein, 1 is an upper column, 2 is a lower column, 3 is a suspension head, 4 is a fixing seat, 5 is a lifting lug, 6 is a rope ring, and 7 is a rope.

Detailed ways

In order to make the content of the present utility model more obvious and understandable, further description will be made below in conjunction with accompanying drawings 1-2 and specific implementation methods.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

A single holding rod for replacing a knife switch, including an upper column 1, a lower column 2, a suspension head 3 and a fixing seat 4;

The upper column 1 and the lower column 2 are connected by bolts, the suspension head 3 is set on the top of the upper column 1 by bolts, the fixing seat 4 is set on the bottom of the lower column 2 by bolts; the lifting lug 5 is welded and fixed on the suspension head 3 It is used to hang the chain hoist to replace the knife switch. Four rope loops 6 are arranged on the top of the suspension head 3; the four rope loops 6 are arranged symmetrically.

Using the pole of the utility model, the process method of replacing the 220kV knife switch group:

In the construction of the reconstruction and expansion project, especially in the operation of the second-floor platform interval of the substation, the work of replacing the knife switch when the power is off, the adjacent two sides are running at intervals, and the construction work of replacing the 220kV knife switch uses a single combination and a new aluminum alloy tubular holding pole. The wall thickness of the pole is 0.5 cm, the diameter of the pole is 8 cm, and it is divided into two sections, each section is 2.5 meters, plus the base is 0.5 meters, the top cap is 0.5 meters, the total length is 6 meters, and the total weight of the pole is 20 kg. During the construction process, 1 person commanded, 2 people worked at heights, 4 people transported and assembled, transported and assembled the porcelain bottle, fixed the fixing seat 4 on the second-floor platform with bolts, and fixed it on the second-floor platform with the rope 7 passing through the rope loop 6. Lifting by chain hoist.

In addition to the above embodiments, the utility model can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.

Achievements achieved by adopting the pole of the utility model:

Through the efforts in recent years, dozens of substations have been rebuilt and expanded, and nearly a hundred sets of 220kV and 110kV knife switches have been replaced. Practice has proved that this method is feasible and reliable. Substation, 220kV Dongyang Substation, 220kV Yaohuamen Substation, etc., have been widely operated and applied in practice. After a series of construction processes, it has been proved that this method is safe and controllable, and effectively guarantees personal safety and equipment safety. Safety, improves the degree of mechanization and semi-mechanization of the construction process, reduces the risk rate of high-altitude operations, saves construction costs, reduces the repetitive labor and physical exertion of construction personnel, improves the economic benefits of employees, and ensures zero accidents in construction.

The parts not involved in the utility model are all the same as the prior art or implemented by adopting the prior art.

Claims (3)

1. A single holding pole for replacing a knife switch, characterized in that it includes an upper column (1), a lower column (2), a suspension head (3) and a fixing seat (4); the upper column ( The connection between 1) and the lower column (2) is detachable, the suspension head (3) is set on the top of the upper column (1), and the fixing seat (4) is set at the bottom of the lower column (2); The suspension head (3) is provided with lifting lugs (5). 2. The single holding rod for replacing the knife switch according to claim 1, characterized in that, no less than two rope loops (6) are arranged on the top of the suspension head (3); The rope circle (6) is arranged symmetrically. 3. The single holding rod for replacing a knife switch according to claim 1, characterized in that, both the upper column (1) and the lower column (2) are telescopic rods.