CN-224233156-U - Electric operation tool for low-voltage chamber door of 6KV switch cabinet of nuclear power plant

CN224233156UCN 224233156 UCN224233156 UCN 224233156UCN-224233156-U

Abstract

The utility model relates to the technical field of switch cabinets of nuclear power plants, aims to solve the problems of mechanical faults such as cabinet door sinking and deformation caused by improper operation of personnel, and discloses an electric operation tool for a cabinet door of a low-voltage chamber of a 6KV switch cabinet of a nuclear power plant, which comprises a driving component, a torque output interface, a boss interface, a connecting piece, a double-wing inner groove output interface and a positive and negative rotation switching button, the torque output interface is arranged at the end part of the driving assembly, the boss interface is arranged at one end of the connecting piece, the output interface of the double-fin inner groove is arranged at the other end of the connecting piece, the torque output interface is connected with the boss interface, and the positive and negative rotation switching button is arranged on the outer surface of the driving assembly. The utility model effectively reduces the failure rate of the cabinet door of the low-voltage chamber of the 6KV switch cabinet by 50%, reduces the unnecessary operation time by 40%, greatly saves the operation and maintenance man-hour and improves the production efficiency.

Inventors

Ou Changgui
HU QING
LI CHENCHEN
CHEN TAIPING
DONG YUANCHONG

Assignees

江苏核电有限公司

Dates

Publication Date: 20260512
Application Date: 20250328

Claims (10)

1. The utility model provides an electric operation instrument for nuclear power plant 6KV cubical switchboard low pressure room cabinet door, its characterized in that includes drive assembly (1), moment of torsion output interface (2), boss interface (3), connecting piece (4), biplane inner groove output interface (5) and positive and negative rotation shift knob (6), moment of torsion output interface (2) are located the tip of drive assembly (1), boss interface (3) are located one end of connecting piece (4) just the other end is located to biplane inner groove output interface (5), moment of torsion output interface (2) with boss interface (3) are connected, positive and negative rotation shift knob (6) are located the surface of drive assembly (1).
2. The electrically operated tool for a door of a low voltage compartment of a 6KV switchgear of a nuclear power plant according to claim 1, characterized in that the boss interface (3), the connecting piece (4) and the biplane inner groove output interface (5) are an integral iron casting.
3. The electrically operated tool for a door of a low voltage compartment of a 6KV switchgear of a nuclear power plant according to claim 2, characterized in that a transition section (7) is provided between the boss interface (3) and the connection piece (4).
4. Electrically operated tool for a door of a low voltage compartment of a 6KV switchgear in a nuclear power plant according to claim 2, characterized in that the connection piece (4) is flush with the end of the biplane inner recess output interface (5).
5. The electric operation tool for the low-voltage chamber door of the 6KV switch cabinet of the nuclear power plant according to claim 2, wherein two protrusions which are arranged at 180 degrees are arranged on the outer surface of the double-fin inner groove output interface (5).
6. The electrically operated tool for a door of a low voltage compartment of a 6KV switchgear of a nuclear power plant according to claim 5, wherein the protrusion has a rectangular parallelepiped structure.
7. The electric operation tool for a low-voltage chamber door of a 6KV switch cabinet of a nuclear power plant according to claim 1, wherein the torque output interface (2) is an inner hexagonal groove torque output interface, the boss interface (3) is a hexagonal boss interface, and the inner hexagonal groove torque output interface is connected with the hexagonal boss interface through a hexagonal groove.
8. Electrically operated tool for a door of a low voltage compartment of a 6KV switchgear of a nuclear power plant according to claim 1, characterized in that the torque output interface (2) is connected to a decelerator in the drive assembly (1).
9. The electric operating tool for a door of a low-voltage chamber of a 6KV switchgear of a nuclear power plant according to claim 1, wherein the length of the connecting member (4) is 3.4-3.6 cm.
10. The electrically operated tool for the door of the low voltage compartment of a 6KV switchgear of a nuclear power plant according to claim 1, characterized in that two 5v batteries are installed in the driving assembly (1).

Description

Electric operation tool for low-voltage chamber door of 6KV switch cabinet of nuclear power plant Technical Field The utility model relates to the technical field of nuclear power plant switch cabinets, in particular to an electric operation tool for a low-voltage chamber cabinet door of a 6KV switch cabinet of a nuclear power plant. Background At present, a cabinet body of a 6KV switch cabinet adopted by a nuclear power plant consists of a bus chamber, a breaker chamber, a cable chamber and a low-voltage chamber. The low-voltage chamber and the low-voltage chamber cabinet door are provided with secondary elements of the switch cabinet, including relay protection elements, meters, analog buses, operation switches, secondary equipment with special requirements and the like. When an operator performs work such as a low-voltage indoor space-open operation or wiring inspection, the operator needs to open a cabinet door of the low-voltage chamber. The low-voltage chamber cabinet door is operated by a unified double-wing key, the cabinet door is opened or closed by inserting the double-wing key into the lock holes in a rotating mode, each low-voltage chamber cabinet door is provided with 3 lock holes which are vertically arranged at intervals, and the cabinet door can be opened after the three lock holes are opened. In the actual operation process, the three lock holes are all higher, the lowest is about 1.75m, when the locking cabinet door is closed, because the grasping size behind the double-wing key is not large, the rotation force-generating surface is smaller, and the individual lock holes are often manually closed, but are not closed in place or clamped in the middle position in practice, especially during the maintenance and the re-service of one or more sections of 6KV buses, a plurality of low-voltage chambers need to be operated, and the lock holes of the cabinet door of the individual low-voltage chambers are easily unlocked. The lockhole is not locked with the following equipment damage and personnel risks that on one hand, uneven stress of the cabinet door of the low-voltage chamber is caused, the cabinet door is easy to sink, the hinge is loose and worn, pins in the lockhole are inclined, the cabinet door is damaged, on the other hand, the low-voltage chamber is not completely closed and sealed, and once an electrical cabinet fault such as arc light protection action and the like occurs, the cabinet door of the low-voltage chamber possibly cannot execute the mechanism function of the cabinet door, and the cabinet door possibly pops up directly to hurt people. Disclosure of utility model The utility model aims to provide an electric operation tool for a cabinet door of a low-voltage chamber of a 6KV switch cabinet of a nuclear power plant, which solves the mechanical failure problems of cabinet door sinking, deformation and the like caused by improper operation of personnel, effectively reduces the failure rate of the cabinet door of the low-voltage chamber of the 6KV switch cabinet by 50%, reduces unnecessary operation time by 40%, greatly saves operation and maintenance man-hour, and improves production efficiency. In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides an electric operation instrument for nuclear power plant 6KV cubical switchboard low pressure room cabinet door, includes drive assembly, moment of torsion output interface, boss interface, connecting piece, biplane inner groove output interface and positive and negative rotation shift knob, the moment of torsion output interface is located drive assembly's tip, the boss interface is located the one end of connecting piece just the other end is located to biplane inner groove output interface, the moment of torsion output interface with boss interface connection, positive and negative rotation shift knob locates drive assembly's surface. In some embodiments, the boss interface, the connector, and the double-fin internal groove output interface are an integral cast iron piece. In some embodiments, a transition section is provided between the boss interface and the connector. In some embodiments, the connection and the end of the double-fin internal groove output interface are flush. In some embodiments, the outer surface of the double-fin inner groove output interface is provided with two protrusions arranged at 180 degrees. In some embodiments, the protrusions are rectangular parallelepiped structures. In some embodiments, the torque output interface is an internal hexagonal groove torque output interface, the boss interface is a hexagonal boss interface, and the internal hexagonal groove torque output interface and the hexagonal boss interface are connected by a hexagonal groove. In some embodiments, the torque output interface is connected with a speed reducer within the drive assembly. In some embodiments, the length of the connecting piece is 3.4-3.6