A switch cabinet secondary socket interlocking device

Abstract

The utility model discloses a switchgear secondary socket interlocking device, including secondary socket support, is the secondary socket bending plate axle installation in secondary socket support, and the one end of pressing rod passes through the strip hole on secondary socket support and is connected fixedly with secondary socket bending plate, and the outer side of secondary socket bending plate is equipped with gyro wheel through the screw pin axle installation, and the one end of tension spring is installed on secondary socket support, and the other end is installed on secondary socket bending plate, the utility model has convenient to use, safe operation and is convenient for the characteristics of the field operation and maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of switch cabinet socket interlocking equipment, and in particular relates to a secondary socket interlocking device for switch cabinets. Background Technology

[0002] The "secondary socket interlocking device" in high-voltage switchgear is a crucial technical measure to ensure the safe operation of equipment and systems, guarantee equipment and personnel safety, and prevent misoperation. Traditional switchgear uses only simple or rudimentary lever-driven protection between the secondary socket and the circuit breaker. During energized operation, this can easily lead to misoperation accidents such as the secondary socket with secondary wiring becoming detached or having weak contact. Furthermore, the circuit breaker's travel distance from the test position to the working position is relatively large, and even after proper installation, the distance between the secondary socket with secondary wiring and the interlocking device and the front of the cabinet is considerable, making on-site operation and maintenance inconvenient. Operation is cumbersome.

[0003] In the fabrication and installation of secondary socket interlocking devices for switchgear, the diverse specifications and models of switchgear, along with varying installation locations and environments, necessitate significantly different installation methods. Different switchgear requires different secondary socket interlocking devices, often requiring the coordinated efforts of multiple workers for installation. Traditional installation methods, primarily welding, result in severe deformation and corrosion after welding, failing to meet relevant national standards. This drastically increases production and labor costs, significantly lengthening the installation cycle and impacting project progress. Furthermore, the lack of secondary socket interlocking devices during installation leads to angle and height discrepancies that do not meet national standards, directly affecting product quality, increasing the risk of accidents due to misoperation, and negatively impacting aesthetics. This compromises quality and poses significant safety hazards for users. As national requirements for the installation quality and operating environment of secondary socket interlocking devices become increasingly stringent, the existing cumbersome installation methods are no longer sufficient to meet customer needs. Utility Model Content

[0004] The purpose of this utility model is to improve upon the shortcomings of existing technologies by providing a switch cabinet secondary socket interlocking device that is easy to use, safe to operate, and convenient for on-site operation and maintenance.

[0005] The purpose of this utility model is achieved as follows: a secondary socket interlocking device for a switch cabinet includes a secondary socket bracket, characterized in that a secondary socket bending plate shaft is installed inside the secondary socket bracket, one end of a pressure rod passes through a strip hole on the secondary socket bracket and is fixedly connected to the secondary socket bending plate, a roller is installed on the outer side of the secondary socket bending plate by a screw pin shaft, one end of a tension spring is installed on the secondary socket bracket, and the other end is installed on the secondary socket bending plate.

[0006] Compared with existing technologies, this utility model has the following significant features and positive effects: The structure of this utility model is robust, high-strength, flexible and reliable in rotation, simple to process, low in manufacturing cost, and easy to install. The interlocking transmission is flexible, safe, and reliable, improving the reliability of switchgear operation and effectively preventing secondary sockets from falling off. This utility model adds a tension spring with moderate tension, allowing the device to quickly reset and avoiding misoperation. This solves the problems of traditional interlocking devices lacking tension spring control, failing to achieve the required rotational accuracy, and being prone to accidents. The secondary socket bending plate, through arc bending, effectively avoids damage to the secondary wiring. This utility model completely avoids equipment misoperation, improves equipment safety and reliability, and enables rapid installation. This utility model allows for rapid installation of high-voltage switchgear of different specifications and models from multiple angles and heights, reducing production costs, shortening the production cycle, and improving installation efficiency. It is characterized by strong versatility and interchangeability, economy, practicality, safety, and reliability. Attached Figure Description

[0007] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0008] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0009] Figure 2 for Figure 1 The front view.

[0010] Figure 3 for Figure 1 A top-down view.

[0011] Figure 4 for Figure 1 Side view.

[0012] Figure 5 for Figure 1 The rear view.

[0013] In the diagram: 1. Secondary socket bend plate, 2. Pressure rod, 3. Secondary socket bracket, 4. Roller, 5. Shaft, 6. Screw pin, 7. Tension spring. Detailed Implementation

[0014] A secondary socket interlocking device for a switch cabinet, as described in the reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The system includes a secondary socket bracket 3, which is a U-shaped arc frame with one side extending outward to form a fixed surface. The secondary socket bracket 3 is formed by bending a high-strength aluminum-zinc coated plate in one go, and the ends are reinforced with a double-folding process, making it lightweight, sturdy and durable. A U-shaped secondary socket bending plate 1 is installed inside the U-shaped arc of the secondary socket bracket 3 through a shaft, so that the secondary socket bending plate 1 can rotate around the shaft 5. The secondary socket bending plate 1 is formed into a U-shape by arc bending, which effectively avoids damage to the secondary wires. The bottom of the U-shaped arc of the secondary socket bracket 3 is provided with a strip hole. One end of the pressure rod 3 passes through the strip hole and is fixedly connected to the secondary socket bending plate 1, while the other end protrudes outside the secondary socket bracket 3. The outer side of the secondary socket bending plate 1 extends outward and protrudes from the side of the secondary socket bracket 3. A roller is installed on the shaft and fixed by a screw pin 6. One end of the tension spring 7 is installed on the secondary socket bracket 3, and the other end is installed on the secondary socket bending plate 1.

[0015] The method of use and working principle of this utility model are as follows:

[0016] As the circuit breaker moves from the experimental position to the working position, it slowly advances forward. The top of the circuit breaker begins to contact the roller 4. As the circuit breaker advances, the roller 4 begins to rotate, which in turn drives the tension spring 7 to move. With the movement of the tension spring 7, the secondary socket bend plate 1 and the pull rod 2 move. As the circuit breaker continues to advance, the pull rod 2 eventually secures the secondary socket firmly, preventing it from falling off. This effectively avoids damage to the secondary wiring and also prevents misoperation.

Claims

1. A secondary socket interlocking device for a switchgear, comprising a secondary socket bracket, characterized in that: The secondary socket bend plate shaft is installed inside the secondary socket bracket. One end of the pressure rod passes through the strip hole on the secondary socket bracket and is fixedly connected to the secondary socket bend plate. Rollers are installed on the outer side of the secondary socket bend plate by screws and pins. One end of the tension spring is installed on the secondary socket bracket, and the other end is installed on the secondary socket bend plate.

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