CN206179758U - But wobbling isolation switch structure - Google Patents

Abstract

The utility model relates to a swingable isolation knife gate structure, which comprises an isolation knife gate. The isolation knife gate consists of two parallel metal plates. One end of the isolation knife gate is connected to a metal seat through a movable pin shaft. The power connection port, the two metal plates are connected to the rotating plate through a fixed round shaft, and the rotating plate is connected to the swing shaft through the rotating seat. The gate is connected to electricity. In order to prevent poor contact, there is a protrusion on the inner side of the metal plate at the power connection port. The protrusion can be closely attached to the surface of the isolated static contact. If there is a short circuit in contact with the parts, an insulating plate attached to the metal plate is provided on the outside of the isolation knife switch. The material of the rotating seat and the swing shaft are insulating materials, which ensures the safety of the isolation knife switch.

Description

A Swingable Isolation Knife Switch Structure

technical field

The utility model relates to the field of power distribution, in particular to a swingable isolation knife switch structure.

Background technique

Isolation switch is the most widely used electrical appliance in high-voltage switchgear. Its working principle and structure are relatively simple, but due to the large amount of use and high reliability requirements, it is very important for the design, establishment and safe operation of substations and power plants. It can be used to divide and close small currents in the line, such as the charging current of bushings, busbars, connectors, and short cables, the capacitive current of switch equalizing capacitors, the circulating current and voltage mutual inductance when double busbars are switched. The excitation current of the device, etc., the current isolation switch has potential safety hazards during use, mainly in the problem that the isolation switch is easily in poor contact with the transmission joint and the isolation switch is easy to contact with the electrical devices next to it during use. Short circuit.

Utility model content

The purpose of the utility model is to provide a swingable isolation knife gate structure in order to solve the defects of the isolation knife gate in the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is:

A swingable isolation knife switch structure, including an isolation knife switch, the isolation knife switch includes two parallel metal plates, the two metal plates are connected by a fixed circular shaft, the fixed circular shaft is connected with a rotating plate, and the rotating plate passes through a rotating seat Connect the swing shaft;

A slot is formed between the two metal plates of the isolating knife switch. One end of the isolating knife switch is connected to the metal seat through a movable pin, and the other end of the isolating knife switch is a power connection port. insulating plate on the metal plate.

In the above-mentioned swingable isolation knife gate structure, the material of the rotating seat and the swing shaft are insulating materials.

In the aforementioned swingable isolation knife gate structure, the insulating plate is fixed on the metal plate by screws.

In the aforementioned swingable isolation knife switch structure, a protrusion is provided on the inner side of the metal plate at the electrical connection port on the isolation knife switch.

The beneficial effects of the utility model are: a slot is formed between the two metal plates of the isolation knife switch, one end of the isolation knife switch is connected to the metal seat through a movable pin, the other end of the isolation knife switch is an electrical port, and the two metal plates They are connected by a fixed round shaft, the fixed round shaft is connected to the rotating plate, and the rotating plate is connected to the swing shaft through the rotating seat. The swing shaft can drive the isolation knife switch to rotate with the movable pin shaft as the fulcrum. When the isolation static contact (not shown) is below, the power connection port of the isolation knife switch coincides with the isolation static contact to ensure that the isolation knife switch is connected to electricity. In order to prevent poor contact, the power connection port is located on the inner side of the metal plate. There are protrusions, which can be closely attached to the surface of the isolated static contact. In order to prevent the isolation knife from contacting the electrical device next to it and short circuit, there is a metal plate on the outside of the isolation knife. The insulating plate, the rotating seat and the swing shaft are all made of insulating materials, which ensures the safety of the isolation switch.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

detailed description

As shown in Figure 1, a swingable isolation knife switch structure includes an isolation knife switch 1, the isolation knife switch 1 includes two parallel metal plates 11, and the two metal plates 11 are connected by a fixed circular shaft 12, fixed The circular shaft 12 is connected to the rotating plate 2, and the rotating plate 2 is connected to the swing shaft 4 through the rotating seat 3;

A card slot is formed between the two metal plates 11 of the isolation switch 1. One end of the isolation switch 11 is connected to the metal seat 5 through a movable pin 13, and the other end of the isolation switch 1 is a power connection port. An insulating plate 14 attached to the metal plate 11 is provided on the outside.

Further, the rotating base 3 and the swing shaft 4 are made of insulating materials, the insulating plate 14 is fixed on the metal plate 11 by screws, and a protrusion 15 is provided on the inner side of the metal plate 11 at the electrical port on the isolation switch 1 .

A slot is formed between the two metal plates of the isolation switch 1. One end of the isolation switch 1 is connected to the metal seat 5 through a movable pin 13, and the other end of the isolation switch 1 is a power connection port. Between the two metal plates 11 It is connected through the fixed round shaft 12, the fixed round shaft 12 is connected to the rotating plate 2, and the rotating plate 2 is connected to the swing shaft 4 through the swivel seat 3, and the swing shaft 4 can drive the isolation knife switch 1 to rotate with the movable pin shaft 13 as the fulcrum, when the isolation knife When the gate 1 rotates to the bottom of the isolation static contact (not shown) connected to the outside world, the power connection port of the isolation knife switch 1 coincides with the isolation static contact to ensure that the isolation knife switch is connected to electricity. In order to prevent poor contact, the connection The electrical port is located on the inner side of the metal plate 11, and a protrusion 15 is provided. The protrusion 15 can be closely attached to the surface of the isolated static contact. The outer side of the isolation knife switch 1 is provided with an insulating plate 14 attached to the metal plate 11, and the materials of the rotating base 3 and the swing shaft 4 are insulating materials, which ensures the safety of the isolation knife switch.

The utility model is not limited to the above-mentioned best implementation mode, anyone can draw other various forms of products under the enlightenment of the utility model, but no matter make any changes in its shape or structure, all have the same features as the application Or similar technical solutions all fall within the protection scope of the present utility model.

Claims (4)

1. A swingable isolation knife switch structure, including an isolation knife switch, is characterized in that the isolation knife switch includes two parallel metal plates, the two metal plates are connected by a fixed circular shaft, and the fixed circular shaft is connected to the rotating plate , the rotating plate is connected to the swing shaft through the rotating seat; A slot is formed between the two metal plates of the isolating knife switch. One end of the isolating knife switch is connected to the metal seat through a movable pin, and the other end of the isolating knife switch is a power connection port. insulating plate on the metal plate. 2 . The swingable isolation knife gate structure according to claim 1 , wherein the material of the rotating base and the swing shaft are both insulating materials. 3 . 3. A swingable isolation knife gate structure according to claim 1, characterized in that the insulating plate is fixed on the metal plate by screws. 4 . The swingable isolation knife switch structure according to claim 1 , wherein a protrusion is provided on the inner side of the metal plate at the electrical connection port on the isolation knife switch. 5 .