CN107316762B - A kind of double-bus disconnecting link earthing knife-switch anti-error locking system - Google Patents

Abstract

The present invention relates to a double-busbar knife gate anti-misoperation locking system, which includes a box seat, a T-shaped seat, a knob switch and a power supply. A rotary table is arranged on the upper side of the box seat, and a ring gear and a The ring meshes with the gear, the gear is connected to the motor, the rotary table is connected to the L-shaped ground knife, the T-shaped seat is arranged above the L-shaped ground knife, and the left and right sides of the T-shaped seat are symmetrically provided with locking plates, and the left and right sides of the T-shaped seat are both arranged A limit iron plate, a spring telescopic rod and an electromagnet are arranged between the limit iron plate and the T-shaped seat. The knob switch includes a base, a rotating cover, a terminal A arranged on the rotating cover, and a The terminal B and the circuit breaker terminal, the terminal B is electrically connected to the electromagnet, and the two ends of the power supply are respectively electrically connected to the terminal A and the electromagnet; the present invention has the advantages of novel structure, convenient operation, safety and reliability.

Description

A double-busbar knife gate ground knife anti-misoperation locking system

technical field

The invention belongs to the technical field of power distribution equipment, and in particular relates to an anti-misoperation locking system for double-busbar knife switches.

Background technique

When double-bus wiring is remotely operated, the control power supply of the bus tie switch should be turned on to prevent the failure of the outgoing line of the operating circuit, which will cause the single-stage main outlet switch to trip, and the control power supply of the bus tie (bus After the connection is self-injection), it can be guaranteed that even if the operated circuit causes the above phenomenon, the bus connection is automatically closed, and the other circuits on the tripped section of the bus can continue to work. The double bus switch and ground switch need accurate closing , to prevent false locking; therefore, it is very necessary to provide a novel structure, convenient operation, safe and reliable dual-bus knife gate ground knife anti-mislocking system.

Contents of the invention

The object of the present invention is to overcome the deficiencies of the prior art, and provide a novel structure, convenient operation, safe and reliable dual-busbar knife gate ground knife anti-misoperation locking system.

The object of the present invention is achieved in the following way: a double-bus bar knife gate anti-misoperation locking system, which includes a box seat, a T-shaped seat, a knob switch and a power supply, the upper side of the box seat is provided with a rotary table, and the rotary table The lower part is equipped with a ring gear, the ring gear meshes with the gear, and the gear is connected to the motor. The rotating table is connected to the L-shaped ground knife, and the T-shaped seat is arranged above the L-shaped ground knife. The left and right sides of the shaped seat are provided with limit iron plates, and a spring telescopic rod and an electromagnet are arranged between the limit iron plate and the T-shaped seat. The knob switch includes a base, a rotating cover, and a terminal arranged on the rotating cover. A. The terminal B and the disconnecting terminal provided on the base, the terminal B is electrically connected to the electromagnet, and the two ends of the power supply are respectively electrically connected to the terminal A and the electromagnet.

The number of the locking plate, the spring telescopic rod, the limit iron plate, the electromagnet and the terminal B is 2.

The end of the L-shaped ground knife is in contact with the locking plate.

The L-shaped ground knife is divided into a vertical section and a horizontal section.

The power supply described is a DC power supply.

Beneficial effects of the present invention: the present invention uses two limit iron plates to limit the rotation range of the L-shaped ground knife, and the motor drives the transmission structure of the gear ring gear, thereby driving the rotation of the rotary table and the ground knife, and the terminal A is in contact with the open circuit terminal At the same time, the L-shaped ground knife is restricted between the two limit iron plates and cannot be rotated. The terminal A is connected to the lifting terminal B, and the electromagnet on the side of the T-shaped seat pulls the limit iron plate. The L-shaped ground knife can Rotate within the range of 180 degrees, accurately connect the locking plate, and prevent the wrong connection of the L-shaped ground knife; the invention has the advantages of novel structure, convenient operation, safety and reliability.

Description of drawings

Fig. 1 is a structural schematic diagram of a ground knife anti-misoperation locking system for a double busbar knife switch according to the present invention.

Fig. 2 is a schematic diagram of a rotary button of a ground knife anti-misoperation locking system for a double-bus knife switch according to the present invention.

Fig. 3 is a schematic diagram of the electrical connection of a ground knife anti-misoperation locking system for a double busbar knife switch according to the present invention.

In the figure: 1, box seat 2, rotary table 3, ring gear 4, gear 5, motor 6, L-shaped ground knife 7, locking plate 8, T-shaped seat 9, limit iron plate 10, spring telescopic rod 11, electromagnetic Iron 12, terminal B 13, terminal A 14, disconnect terminal 15, rotary switch 16, power supply.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Example 1

As shown in Fig. 1-3, a double-busbar knife gate anti-misoperation locking system includes a box base 1, a T-shaped base 8, a rotary switch 15 and a power supply 16, and the upper side of the box base 1 is provided with a rotating Table 2, the lower part of the rotary table 2 is provided with a ring gear 3, the ring gear 3 meshes with the gear 4, the gear 4 is connected to the motor 5, the rotary table 2 is connected to the L-shaped ground knife 6, and the T-shaped seat 8 is set on the L-shaped ground Above the knife 6, the left and right sides of the T-shaped seat 8 are symmetrically provided with locking plates 7, and the left and right sides of the T-shaped seat 8 are all provided with a limit iron plate 9, and between the limit iron plate 9 and the T-shaped seat 8, a spring telescopic rod 10 and an electromagnetic iron 11, the rotary switch 15 includes a base, a rotating cover, a terminal A13 arranged on the rotating cover, a terminal B12 arranged on the base and a circuit breaker terminal 14, the terminal B12 is electrically connected to the electromagnet 11, the Both ends of the power supply 16 described above are electrically connected to the terminal A13 and the electromagnet 11 respectively.

The invention adopts two limit iron plates to limit the rotation range of the L-shaped ground knife, and the motor drives the transmission structure of the gear ring gear, thereby driving the rotation of the rotary table and the ground knife. When terminal A contacts with the circuit breaker terminal, the L-shaped ground The knife is limited between two limit iron plates and cannot be rotated. Terminal A is connected to lifting terminal B. The electromagnet on the side of the T-shaped seat pulls the limit iron plate. The L-shaped ground knife can be within the range of 180 degrees. Rotate, accurately connect the locking plate, and prevent the wrong connection of the L-shaped ground knife; the invention has the advantages of novel structure, convenient operation, safety and reliability.

Example 2

As shown in Fig. 1-3, a double-busbar knife gate anti-misoperation locking system includes a box base 1, a T-shaped base 8, a rotary switch 15 and a power supply 16, and the upper side of the box base 1 is provided with a rotating Table 2, the lower part of the rotary table 2 is provided with a ring gear 3, the ring gear 3 meshes with the gear 4, the gear 4 is connected to the motor 5, the rotary table 2 is connected to the L-shaped ground knife 6, and the T-shaped seat 8 is set on the L-shaped ground Above the knife 6, the left and right sides of the T-shaped seat 8 are symmetrically provided with locking plates 7, and the left and right sides of the T-shaped seat 8 are all provided with a limit iron plate 9, and between the limit iron plate 9 and the T-shaped seat 8, a spring telescopic rod 10 and an electromagnetic iron 11, the rotary switch 15 includes a base, a rotating cover, a terminal A13 arranged on the rotating cover, a terminal B12 arranged on the base and a circuit breaker terminal 14, the terminal B12 is electrically connected to the electromagnet 11, the Both ends of the power supply 16 described above are electrically connected to the terminal A13 and the electromagnet 11 respectively.

The number of the locking plate 7, the spring telescopic rod 10, the limit iron plate 9, the electromagnet 11 and the terminal B12 is 2; the end of the L-shaped knife 6 is in contact with the locking plate 7; the L The ground knife 6 is divided into a vertical section and a horizontal section; the power supply 16 is a DC power supply.

The invention adopts two limit iron plates to limit the rotation range of the L-shaped ground knife, and the motor drives the transmission structure of the gear ring gear, thereby driving the rotation of the rotary table and the ground knife. When terminal A contacts with the circuit breaker terminal, the L-shaped ground The knife is limited between two limit iron plates and cannot be rotated. Terminal A is connected to lifting terminal B. The electromagnet on the side of the T-shaped seat pulls the limit iron plate. The L-shaped ground knife can be within the range of 180 degrees. Rotate, accurately connect the locking plate, and prevent the wrong connection of the L-shaped ground knife; the invention has the advantages of novel structure, convenient operation, safety and reliability.

Claims (1)

1. a kind of double-bus disconnecting link earthing knife-switch anti-error locking system, it includes that block, T shape seat, rotary switch and power supply, feature exist In: the block upper side is provided with turntable, and gear ring, gear ring meshing gear is arranged in turntable lower part, and gear connects motor, The turntable connects L shape earthing knife-switch, and the T shape seat is arranged above L shape earthing knife-switch, and T shape seat left and right sides is symmetrical arranged locking Plate, T shape seat left and right sides are respectively provided with limit iron plate, limit and are provided with telescopic spring bar and electromagnet between iron plate and T shape seat, described Rotary switch include pedestal, rotation lid, the terminal A for being set to rotation lid, the terminal B for being set to pedestal and breaking end Son, the terminal B are electrically connected electromagnet, and the both ends of power is electrically connected terminal A and electromagnet, the locking Plate, telescopic spring bar, limit iron plate, electromagnet and terminal B quantity be 2, the shape earthing knife-switch end L connects with latch plate Touching, the L shape earthing knife-switch are divided into vertical section and horizontal segment, and the power supply is DC power supply.