CN111697475A - Anti-misoperation device of high-voltage board - Google Patents

Abstract

An anti-misoperation device for high-voltage cabinets relates to the field of anti-misoperation of high-voltage cabinets, and integrates the misoperations of a circuit breaker mechanism, a grounding mechanism and a self-locking door mechanism into one operation through gear linkage; The anti-misoperation device of the cabinet provides power for the device through the transmission mechanism, without the need for people to approach the manual operation, the safety factor is high, the structure is simple and effective, the position can be locked to prevent misalignment and the connection is not tight, through the circuit breaker mechanism, grounding mechanism and The simple mechanical linkage of the self-locking door mechanism has a simple structure and a long service life, absolutely prevents the occurrence of misoperation, and has a good anti-misoperation effect, which simplifies the multi-step operation into one step, the operation time is short, and the safety hazard is small. Bus group, high safety performance.

Description

An anti-misoperation device for a high-voltage cabinet

technical field

The invention relates to the field of anti-misoperation of high-voltage cabinets, in particular to an anti-misoperation device of high-voltage cabinets.

Background technique

High and low voltage switch cabinets are connected to high voltage equipment. Generally, power supply bureaus and substations use high voltage cabinets. Inside the high voltage cabinets, there are generally some electrical equipment such as switch circuit breakers and other protective devices assembled into one, which are mainly used for receiving and distributing electric energy. It also implements the functions of control, protection and monitoring for the system. When operating the high-voltage cabinet, it is necessary to ensure that the grounding knife is in the open position before the circuit breaker can be moved to the working position, and only when the circuit breaker is in the test position, the grounding switch The closing operation can only be carried out. Once the operation is wrong, the electrification is wrong with the grounding knife or the grounding knife is in the closed state, the circuit breaker is combined, and the high voltage in the cabinet will pour the electric charge on the cabinet with zero potential, and generate an arc in the cabinet. Personnel are electrocuted and ignited, causing more serious consequences. It is also necessary to ensure that when the grounding knife is closed, the door of the grounding room cannot be opened to prevent staff from entering the live space by mistake, resulting in electric shock. The existing high-voltage cabinet self-locking device often The separate transmission type chain is adopted, and the effect is unreliable. Once the transmission mechanism ages or fails, it will lead to serious consequences. The opening and power transmission operations are cumbersome, the operation time is long, and the safety hazard is increased. It must be manually operated, with a high risk factor and a complex structure. , short life, unreliable effect, low safety factor.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies in the background technology, the present invention discloses an anti-misoperation device for a high-voltage cabinet. The present invention provides power for the device through a transmission mechanism, does not require a person to approach the manual operation, has a high safety factor, has a simple and effective structure, and can be locked. Position, prevent misalignment and connection is not tight, through the simple mechanical linkage of circuit breaker mechanism, grounding mechanism and self-locking door mechanism, simple structure and long life, absolutely prevent the occurrence of misoperation, the effect of preventing misoperation is good, and the multi-step operation is simplified to one step , The operation time is short, the safety hazard is small, and the circuit breaker and the busbar group are further isolated by the insulating plate, and the safety performance is high.

In order to realize the purpose of the invention, the present invention adopts the following technical solutions:

An anti-misoperation device for a high-voltage cabinet comprises a circuit breaker mechanism, a grounding mechanism is fixed at the lower end of the circuit breaker mechanism, a self-locking door mechanism is installed on the grounding mechanism, a transmission mechanism is arranged on the grounding mechanism, and the circuit breaker mechanism is connected by gear linkage. , the misoperation of the grounding mechanism and the self-locking door mechanism are integrated into one operation.

The circuit breaker mechanism includes a main cabinet, on which a horizontal slider is slidably connected by a horizontal slider, the lower end of the horizontal slider is fixed with a horizontal tooth, and the upper end of the horizontal slider is fixed with a workbench, so A circuit breaker is fixed on the workbench, a busbar group is fixed on the main cabinet body, and a main cabinet door is connected with a hinge on the main cabinet body.

The grounding mechanism includes a ground knife cabinet, on which a vertical sliding bar is slidably connected by a vertical sliding piece, a vertical sliding tooth is fixed on the vertical sliding bar, an insulating plate is fixed on the vertical sliding bar, and the ground knife A rotating shaft is connected to the cabinet through a bearing, a connecting rod and a grounding knife are fixed on the rotating shaft, the connecting rod and the grounding knife are in a straight line, a locking rod is fixed at the end of the connecting rod, and the grounding knife cabinet is located in the grounding knife. The upper end of the busbar is insulated and fixed with a grounding end, the grounding end is connected to the outgoing end of the busbar group, and the outgoing end of the busbar group is connected to the load end.

The transmission mechanism includes a motor seat, the motor seat is fixed on the ground knife cabinet, the motor is fixed on the motor seat, the output end of the motor is connected with a power shaft through a coupling, and the power shaft is connected with the bearing through a bearing. On the ground knife cabinet, a pressing ring is installed on the other end of the power shaft, an operation hole is opened on the pressing ring, a gear is keyed on the power shaft, and the gear and the horizontal teeth and the vertical sliding teeth pass through the gear mesh.

The self-locking door mechanism includes a base cabinet door, the base cabinet door is connected to the ground knife cabinet through hinges, the inner side of the base cabinet door is fixed with a movable bolt, and the inner side of the floor cabinet corresponds to the movable bolt A fixing bolt is fixed.

The fixed bolt and the movable bolt are in a straight line when the base cabinet door is closed, and the shape of the fixed bolt and the movable bolt is an L shape with an opening at the upper end.

The width of the inner side of the vertical sliding teeth is greater than the width of the outer side of the horizontal teeth.

The worktable, the insulating plate, the connecting rod and the locking rod are all made of insulating materials.

Owing to adopting the above-mentioned technical scheme, the present invention has the following beneficial effects:

The anti-misoperation device of the high-voltage cabinet of the present invention provides power for the device through the transmission mechanism, does not require human beings to approach the manual operation, has a high safety factor, has a simple and effective structure, can be locked in position, and prevents misalignment and loose connection. Through the simple mechanical linkage of the circuit breaker mechanism, the grounding mechanism and the self-locking door mechanism, the structure is simple and the service life is long, and the occurrence of misoperation is absolutely prevented. The circuit breaker and the busbar group are further isolated by the insulating plate, and the safety performance is high.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the left side three-dimensional structure schematic diagram of the present invention;

Fig. 3 is the internal mechanism structure schematic diagram of the present invention;

4 is a front view of the internal structure of the present invention;

FIG. 5 is a three-dimensional schematic diagram of the self-locking door mechanism of the present invention

Fig. 6 is the enlarged structural schematic diagram of A place of the present invention;

1. Circuit breaker mechanism; 101, main cabinet; 102, main cabinet door; 103, rocker hole; 104, horizontal slide; 105, horizontal slide; 106, horizontal tooth; 107, workbench; 108, circuit breaker ;109, bus set; 2, transmission mechanism; 201, motor; 202, motor base; 203, power shaft; 204, pressing ring; 205, operating hole; 206, gear; 3, grounding mechanism; 301, ground knife cabinet ;302, vertical sliding bar; 303, vertical sliding piece; 304, vertical sliding tooth; 305, insulating plate; 306, rotating shaft; 307, connecting rod; 308, locking rod; 309, load end; 310, grounding end; 311, Grounding knife; 4. Self-locking door mechanism; 401, base cabinet door; 402, fixed bolt; 403, movable bolt;.

Detailed ways

The present invention can be explained in detail through the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

A high-voltage cabinet anti-misoperation device according to the accompanying drawings 1 to 4 includes a circuit breaker mechanism 1, a grounding mechanism 3 is fixed at the lower end of the circuit breaker mechanism 1, a self-locking door mechanism 4 is installed on the grounding mechanism 3, and the grounding mechanism 3 There is a transmission mechanism 2 on it, which integrates the misoperation of the circuit breaker mechanism 1, the grounding mechanism 3 and the self-locking door mechanism 4 into one operation through gear linkage.

The circuit breaker mechanism 1 includes a main cabinet 101 , on which a horizontal slider 105 is slidably connected through a horizontal slider 104 , a horizontal tooth 106 is fixed on the lower end of the horizontal slider 105 , and a workbench is fixed on the upper end of the horizontal slider 105 107 , a circuit breaker 108 is fixed on the workbench 107 , a busbar group 109 is fixed on the main cabinet 101 , and a main cabinet door 102 is connected to the hinge on the main cabinet 101 .

The grounding mechanism 3 includes a ground knife cabinet 301, a vertical sliding bar 302 is slidably connected to the ground knife cabinet 301 through a vertical sliding member 303, a vertical sliding tooth 304 is fixed on the vertical sliding bar 302, and an insulating plate 305 is fixed on the vertical sliding bar 302, The ground knife cabinet 301 is connected with a rotating shaft 306 through a bearing. The connecting rod 307 and the grounding knife 311 are fixed on the rotating shaft 306. The connecting rod 307 and the grounding knife 311 are in a straight line. The cabinet 301 is located at the upper end of the grounding blade 311 and is insulated and fixed with a grounding terminal 310 .

The transmission mechanism 2 includes a motor base 202, the motor base 202 is fixed on the ground knife cabinet 301, the motor 201 is fixed on the motor base 202, the output end of the motor 201 is connected with a power shaft 203 through a coupling, and the power shaft 203 is connected through a bearing. On the ground knife cabinet 301, a pressing ring 204 is installed on the other end of the power shaft 203, an operation hole 205 is opened on the pressing ring 204, a gear 206 is keyed on the power shaft 203, and the gear 206 is connected with the horizontal teeth 106 and the vertical sliding teeth. 304 is meshed by gears.

The self-locking door mechanism 4 includes a base cabinet door 401, the base cabinet door 401 is connected to the ground knife cabinet 301 through hinges, the inner side of the base cabinet door 401 is fixed with a movable bolt 403, and the inner side of the floor cabinet 301 is connected to the movable bolt 403 Correspondingly, a fixing bolt 402 is fixed.

The fixed bolt 402 and the movable bolt 403 are in a straight line when the base cabinet door 401 is closed, and the shape of the fixed bolt 402 and the movable bolt 403 is an L shape with an opening at the upper end.

The width of the inner side of the vertical sliding teeth 304 is larger than the width of the outer side of the horizontal teeth 106 .

The worktable 107, the insulating plate 305, the connecting rod 307 and the locking rod 308 are all made of insulating materials.

The above-mentioned anti-misoperation device for high-voltage cabinets, when in use, when it is necessary to close the switch and transmit power, the staff only needs to remotely operate the motor 201 to start the motor 201, and the motor 201 drives the gear 206 to rotate, and the gear 206 drives the horizontal through the gear at the same time. The sliding bar 105 moves inward, the vertical sliding bar 302 moves downward, the insulating plate 305 moves down, and the insulating barrier is removed. At the same time, the lower edge of the insulating plate 305 touches the grounding knife 311, so that the grounding knife 311 rotates downward with the rotating shaft 306 as the center , is separated from the grounding terminal 310, the grounding is disconnected, the gear 206 continues to rotate, and the drive table 107 and the circuit breaker 108 continue to move in the direction of the busbar group 109 until they are combined with the busbar group 109 to complete the closing and power transmission. At this time, the connecting rod 307 And the lock lever 308 is tilted by the grounding knife 311, and the lock outside the cabinet door 401 can be opened to open the cabinet door 401 for maintenance. When the circuit breaker 108 needs to be disconnected, it is only necessary to remotely control the motor 201 to reverse, and the motor 201 passes through The power shaft 203 drives the gear 206 to reverse, and the gear 206 simultaneously drives the vertical slider 302 to move up and the horizontal slider 105 to move outward. The insulating plate 305 moves up to a certain height and separates from the grounding blade 311. Under the gravity of the connecting rod 307 and the locking rod 308, the grounding blade 311 is lifted up and combined with the grounding end 310 to complete the grounding, and the insulating plate 305 continues to move upwards. It is blocked between the circuit breaker 108 and the busbar set 109 to further prevent the circuit breaker 108 and the busbar set 109 from being combined by misoperation. At this time, the grounding knife 311 is merged with the grounding terminal 310 to complete the grounding, and the circuit breaker 108 is stuck at the lowest position. On the fixed bolts 402 and the movable bolts 403, even if the external lock of the floor cabinet door 401 is opened, the floor cabinet door 401 cannot be opened to prevent the maintenance personnel from entering by mistake, and the power shaft 203 can be locked by tightening the operation hole 205 with a tool, so that the gear 206 is in a fixed position without shifting and dislocation, and a rocker can be equipped on the rocker hole 103 for manual operation.

The part that is not described in detail in the present invention is the prior art. Although the present invention is specifically shown and introduced in conjunction with the preferred embodiments, there are many methods and approaches to realize the technical solution. The above are only the preferred embodiments of the present invention, but the It should be understood by those skilled in the art that various changes can be made to the present invention in form and detail without departing from the spirit and scope of the present invention defined by the appended claims, which are all within the protection scope of the present invention.

Claims (8)

1. An anti-misoperation device for a high-voltage cabinet, comprising a circuit breaker mechanism (1), a grounding mechanism (3) is fixed at the lower end of the circuit breaker mechanism (1), and a self-locking door mechanism (4) is installed on the grounding mechanism (3). ), the grounding mechanism (3) is provided with a transmission mechanism (2), which is characterized in that the misoperations of the circuit breaker mechanism (1), the grounding mechanism (3) and the self-locking door mechanism (4) are integrated into one through gear linkage item operation. 2 . The anti-misoperation device for a high-voltage cabinet according to claim 1 , wherein the circuit breaker mechanism ( 1 ) comprises a main cabinet ( 101 ), and the main cabinet ( 101 ) passes through a transverse sliding member ( 104 ). 3 . ) is slidably connected with a horizontal slide bar (105), the lower end of the horizontal slide bar (105) is fixed with a horizontal tooth (106), and the upper end of the horizontal slide bar (105) is fixed with a workbench (107). A circuit breaker (108) is fixed on the table (107), a busbar group (109) is fixed on the main cabinet (101), and a main cabinet door (102) is connected to the hinge on the main cabinet (101). 3. The anti-misoperation device for a high-voltage cabinet according to claim 1, wherein the grounding mechanism (3) comprises a ground knife cabinet (301), and a vertical slide (303) passes through the ground knife cabinet (301). A vertical slide bar (302) is slidably connected, a vertical slide tooth (304) is fixed on the vertical slide bar (302), an insulating plate (305) is fixed on the vertical slide bar (302), and the ground knife cabinet A rotating shaft (306) is connected to the (301) through a bearing, a connecting rod (307) and a grounding knife (311) are fixed on the rotating shaft (306), and the connecting rod (307) and the grounding knife (311) are in a straight line A locking rod (308) is fixed at the end of the connecting rod (307), and a ground terminal (310) is insulated and fixed at the upper end of the ground blade cabinet (301) at the upper end of the ground blade (311). The ground terminal (310) ) is connected to the outlet end of the bus bar group (109), and the outlet end of the bus bar group (109) is connected to the load end (309). 4. The anti-misoperation device for a high-voltage cabinet according to claim 1, wherein the transmission mechanism (2) comprises a motor seat (202), and the motor seat (202) is fixed on the ground knife cabinet (301) A motor (201) is fixed on the motor base (202), the output end of the motor (201) is connected with a power shaft (203) through a coupling, and the power shaft (203) is connected to the ground through a bearing On the knife cabinet (301), a pressing ring (204) is installed on the other end of the power shaft (203), and an operation hole (205) is opened on the pressing ring (204), and the power shaft (203) A gear (206) is connected to the upper key, and the gear (206) is engaged with the horizontal teeth (106) and the vertical sliding teeth (304) through the gears. 5. The anti-misoperation device for a high-voltage cabinet according to claim 1, wherein the self-locking door mechanism (4) comprises a base cabinet door (401), and the base cabinet door (401) is connected through hinges On the ground knife cabinet (301), a movable bolt (403) is fixed on the inner side of the floor cabinet door (401), and a fixed bolt is fixed on the inner side of the ground knife cabinet (301) corresponding to the movable bolt (403). pieces (402). 6. The anti-misoperation device for a high-voltage cabinet according to claim 5, wherein the fixed bolt (402) and the movable bolt (403) are in a straight line when the base cabinet door (401) is closed, The shape of the fixed bolt (402) and the movable bolt (403) is an L shape with an opening at the upper end. 7. The anti-misoperation device for a high-voltage cabinet according to claim 1, wherein the width of the inner side of the vertical sliding teeth (304) is greater than the width of the outer side of the horizontal teeth (106). 8. The anti-misoperation device of a high-voltage cabinet according to claim 7, characterized in that: the worktable (107), the insulating plate (305), the connecting rod (307) and the locking rod (308) are all made of insulating materials production.

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