High-voltage cabinet anti-mistaken-entry interlocking device

Abstract

The utility model discloses a high-voltage cabinet anti-mistaken-entry interlocking device, which belongs to the technical field of high-voltage cabinets and comprises a cabinet body, a front door is rotatably mounted on the cabinet body, a moisture-proof base is arranged below the cabinet body, a fan is mounted on one side of the cabinet body, and heat dissipation ports are arranged on two sides of the cabinet body. According to the anti-mistaken-entry interlocking device for the high-voltage cabinet, when the grounding switch is not switched on, the power supply assembly supplies power to the electromagnetic block, so that the electromagnetic block attracts the metal block, the metal block is clamped into the circular plate to prevent a worker from rotating the circular plate, and when the grounding switch is switched on, the electromagnetic block is powered off, and the metal block slides downwards to be separated from the circular plate under the influence of gravity; at the moment, a worker rotates a circular plate, a connecting rod slides in a strip-shaped sliding groove in a slotting plate, a locking block is pulled through the slotting plate to move, an inserting rod is made to be separated from an inserting hole, the worker opens the rear door for maintenance, and the worker can be prevented from opening the rear door when the grounding is not performed and mistaken entering of the worker can be avoided in the mode that the circular plate is prevented from rotating through a metal block.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage cabinets, and particularly relates to an anti-misoperation interlock device for high-voltage cabinets. Background Technique

[0002] High-voltage cabinets are used in places with power requirements such as power plants or substations. The high-voltage cabinets play a role in circuit control and circuit protection. At present, in order to facilitate later maintenance by workers, doors are usually provided on the back of most high-voltage cabinets. However, since there is a certain voltage intensity inside the high-voltage cabinet, when performing maintenance, the grounding switch inside the high-voltage cabinet needs to be closed to ground it before maintenance work can be carried out. But if the worker forgets this step and directly opens the rear door for maintenance, it is easy to cause electric shock, thus resulting in the occurrence of installation accidents. Content of the Utility Model

[0003] In order to overcome the above defects, the utility model provides an anti-misoperation interlock device for high-voltage cabinets, which solves the problem that if the worker forgets to connect the power step and directly opens the rear door for maintenance, it is easy to cause electric shock, thus resulting in the occurrence of installation accidents.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an anti-misoperation interlock device for high-voltage cabinets, including a cabinet body, a front door is rotatably installed on the cabinet body, a moisture-proof base is arranged below the cabinet body, a fan is installed on one side of the cabinet body, heat dissipation openings are opened on both sides of the cabinet body, a rear door is rotatably installed on the cabinet body, a control module is installed inside the cabinet body, a power switch is arranged on the control module, a grounding switch is arranged on the control module, and an interlock box is installed on the rear door;

[0005] A circular plate is rotatably connected inside the interlock box, a metal block is slidably connected inside the interlock box, a lock block is slidably connected inside the interlock box, a runner is connected to the circular plate, a connecting rod is connected to the circular plate, an electromagnetic block is installed on the circular plate, a slotted plate is connected to one side of the lock block, an insertion rod is connected to the other side of the lock block, a ventilation opening is arranged on one side of the fan, a dust-proof plate is connected to the other side of the fan, and a motor is installed inside the fan, and a fan blade is installed on the output shaft of the motor.

[0006] As a further scheme of the utility model: an electric push rod is installed on the moisture-proof base, one end of the electric push rod is connected with a backing plate, the backing plate is connected with the bottom of the cabinet body, a connecting plate is connected below the backing plate, and the connecting plate slides inside the moisture-proof base.

[0007] As a further scheme of the utility model: a connecting block is connected to one side of the cabinet body close to the interlock box, a jack is opened on one side of the connecting block, the insertion rod is inserted into the jack, a strip-shaped chute is arranged on the slotted plate, and the connecting rod slides inside the strip-shaped chute.

[0008] As a further solution of the present utility model: a guiding block is connected to the interlocking box, a guiding groove is formed on the locking block, and the guiding block is slidably connected to the guiding groove.

[0009] As a further solution of the present utility model: a power supply assembly is electrically connected to one side of the interlocking box, an indicator light is installed on the power supply assembly, and the power supply assembly is electrically connected to the control module. A triangular block is connected to the rotating wheel.

[0010] As a further solution of the present utility model: switch handles are installed on both the front door and the rear door, and insulating rubber sleeves are provided on the switch handles and the rotating wheel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. For this anti-misoperation interlocking device of the high-voltage cabinet, by setting the electromagnetic block, metal block, rotating wheel, circular plate, connecting rod, slotted plate, locking block, inserting rod and inserting hole, when the earthing switch is not closed, the power supply assembly will supply power to the electromagnetic block, so that the electromagnetic block attracts the metal block and makes the metal block snap into the circular plate to prevent the operator from rotating the circular plate. When the earthing switch is closed, the electromagnetic block is powered off, and the metal block slides downward under the influence of gravity and disengages from the circular plate. At this time, the operator rotates the circular plate through the rotating wheel, makes the connecting rod slide along the strip-shaped sliding groove on the slotted plate, and pulls the locking block to move through the slotted plate, prompting the inserting rod to disengage from the inserting hole, so that the operator can open the rear door for maintenance. By preventing the circular plate from rotating with the metal block, it can prevent the operator from opening the rear door when not grounded and avoid the operator from entering by mistake.

[0013] 2. For this anti-misoperation interlocking device of the high-voltage cabinet, by setting the motor, fan blade, heat dissipation port, electric push rod, moisture-proof base and cushion plate, when working, the motor can rotate the fan blade, so that the fan blade blows the air in the cabinet body, and the heat generated by the work flows out from the heat dissipation port along with the air, thereby accelerating the air circulation and improving the heat dissipation efficiency. The moisture-proof base can prevent the cabinet body from directly contacting the ground and prevent moisture from invading. When there is deep water accumulation on the ground, the electric push rod can push the cushion plate to raise the overall height of the cabinet body, thereby preventing the water accumulation from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the three-dimensional structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the three-dimensional structure of the cabinet body of the present utility model;

[0016] Figure 3 is a schematic diagram of the sectional structure of the interlocking box of the present utility model;

[0017] Figure 4It is a schematic diagram of the cross-sectional structure of the fan of the utility model;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the moisture-proof base of the utility model;

[0019] In the figure: 1. cabinet; 2. front door; 3. moisture-proof base; 4. fan; 5. heat dissipation vent; 6. rear door; 7. control module; 8. power switch; 9. grounding switch; 10. interlock box; 11. round plate; 12. metal block; 13. lock block; 14. rotating wheel; 15. connecting rod; 16. electromagnetic block; 17. slotted plate; 18. plug rod; 19. vent; 20. dust shield; 21. motor; 22. fan blades; 23. electric push rod; 24. pad; 25. connecting plate; 26. connecting block; 27. socket; 28. guide block; 29. ​​guide groove; 30. power supply component; 31. triangle block; 32. switch handle. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] like Figures 1-5 As shown, the utility model provides a technical solution: an interlocking device for preventing misentry of a high-voltage cabinet, comprising a cabinet body 1, a front door 2 being rotatably mounted on the cabinet body 1, a moisture-proof base 3 being arranged under the cabinet body 1, an electric push rod 23 being installed on the moisture-proof base 3, one end of the electric push rod 23 being connected to a pad 24, the pad 24 being connected to the bottom of the cabinet body 1, a connecting plate 25 being connected under the pad 24, the connecting plate 25 sliding in the moisture-proof base 3, supporting the cabinet body 1 through the moisture-proof base 3, and the electric push rod 23 being able to push the pad 24 when water accumulates, thereby raising the height of the cabinet body 1 and preventing the entry of water.

[0022] A fan 4 is installed on one side of the cabinet 1, and heat dissipation ports 5 are provided on both sides of the cabinet 1. A rear door 6 is rotatably installed on the cabinet 1. A control module 7 is installed inside the cabinet 1, and a power switch 8 is provided on the control module 7. A grounding switch 9 is provided on the control module 7. An interlock box 10 is installed on the rear door 6. A connecting block 26 is connected to the side of the cabinet 1 close to the interlock box 10, and a socket 27 is provided on one side of the connecting block 26. A plug rod 18 is plugged into the socket 27. A strip slide groove is provided on the slotted plate 17, and the connecting rod 15 slides in the strip slide groove. Through the plugging of the plug rod 18 and the socket 27, the rear door 6 can be closed and fixed on the cabinet 1, thereby preventing workers from accidentally opening the rear door 6. The connecting rod 15 slides in the strip slide groove on the slotted plate 17, so that when the circular plate 11 rotates, the connecting rod 15 can pull the slotted plate 17, prompting the plug rod 18 to disengage from the socket 27, thereby facilitating the workers to open the rear door 6.

[0023] A circular plate 11 is rotatably connected inside the interlocking box 10. A metal block 12 is slidably connected inside the interlocking box 10. A locking block 13 is slidably connected inside the interlocking box 10. A guiding block 28 is connected to the interlocking box 10. A guiding groove 29 is formed on the locking block 13. The guiding block 28 is slidably connected to the guiding groove 29. When the connecting rod 15 pulls the slotted plate 17 to move the locking block 13, the guiding block 28 will slide in the guiding groove 29, thereby guiding the movement of the locking block 13 and preventing the locking block 13 from skewing during movement.

[0024] A runner 14 is connected to the circular plate 11. A connecting rod 15 is connected to the circular plate 11. An electromagnet 16 is installed on the circular plate 11. One side of the interlocking box 10 is electrically connected to a power supply assembly 30. An indicator light is installed on the power supply assembly 30, and the power supply assembly 30 is electrically connected to the control module 7. A triangular block 31 is connected to the runner 14. Through the orientation of the tip of the triangular block 31, the staff can quickly judge the positions of the electromagnet 16 and the metal block 12 in the notch of the circular plate 11, and then by supplying power to the electromagnet 16, it is convenient for the metal block 12 to be inserted.

[0025] One side of the locking block 13 is connected to a slotted plate 17. The other side of the locking block 13 is connected to a plug rod 18. A ventilation opening 19 is provided on one side of the fan 4. A dust-proof plate 20 is connected to the other side of the fan 4. A motor 21 is installed inside the fan 4. A fan blade 22 is installed on the output shaft of the motor 21. Switch handles 32 are installed on both the front door 2 and the rear door 6. Insulating rubber sleeves are provided on the switch handles 32 and the runner 14. By means of the insulating rubber sleeves, the staff can be prevented from directly contacting the switch handles 32 or the runner 14, thereby improving the safety of use.

[0026] The working principle of the present utility model is as follows:

[0027] During maintenance, the staff completes power-off and grounding through the power switch 8 and the grounding switch 9. At this time, the indicator light on the power supply assembly 30 goes out and stops supplying power to the electromagnet 16. When the electromagnet 16 cannot attract the metal block 12, the metal block 12 slides downward under the influence of gravity and disengages from the circular plate 11. At this time, the worker can rotate the circular plate 11 through the runner 14, so that the connecting rod 15 slides along the strip-shaped chute on the slotted plate 17. As the circular plate 11 rotates, the connecting rod 15 will pull the locking block 13 to move through the slotted plate 17, causing the plug rod 18 to disengage from the jack 27, so that the staff can open the rear door 6 for maintenance. The method of preventing the circular plate 11 from rotating by the metal block 12 can prevent the worker from opening the rear door 6 when not grounded, avoiding the worker from straying in. During work, the motor 21 can rotate the fan blade 22, so that the fan blade 22 blows the air inside the cabinet 1, and the heat generated by the work flows out from the heat dissipation opening 5 along with the air, thereby accelerating the air circulation to improve the heat dissipation efficiency.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0029] The above detailed description is given to the preferred embodiments of the present patent. However, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the scope of knowledge of those of ordinary skill in the art.

Claims

1. A high-voltage cabinet anti-mistaken entry interlocking device, comprising a cabinet body (1), characterized in that: A front door (2) is rotatably mounted on the cabinet (1), a moisture-proof base (3) is provided below the cabinet (1), a fan (4) is installed on one side of the cabinet (1), heat dissipation ports (5) are provided on both sides of the cabinet (1), a rear door (6) is rotatably mounted on the cabinet (1), a control module (7) is installed inside the cabinet (1), a power switch (8) is provided on the control module (7), a grounding switch (9) is provided on the control module (7), and an interlock box (10) is installed on the rear door (6); A circular plate (11) is rotatably connected inside the interlock box (10), a metal block (12) is slidably connected inside the interlock box (10), a locking block (13) is slidably connected inside the interlock box (10), a rotating wheel (14) is connected to the circular plate (11), a connecting rod (15) is connected to the circular plate (11), an electromagnetic block (16) is installed on the circular plate (11), a slotted plate (17) is connected to one side of the locking block (13), and a plug rod (18) is connected to the other side of the locking block (13), a vent (19) is provided on one side of the fan (4), and a dust shield (20) is connected to the other side of the fan (4), a motor (21) is installed inside the fan (4), and a fan blade (22) is installed on the output shaft of the motor (21).

2. A high-voltage cabinet anti-mistaken entry interlocking device according to claim 1, characterized in that: An electric push rod (23) is installed on the moisture-proof base (3), one end of the electric push rod (23) is connected to a pad (24), the pad (24) is connected to the bottom of the cabinet (1), a connecting plate (25) is connected below the pad (24), and the connecting plate (25) slides inside the moisture-proof base (3).

3. A high-voltage cabinet anti-mistaken entry interlocking device according to claim 1, characterized in that: A connecting block (26) is connected to one side of the cabinet (1) close to the interlocking box (10), a plug hole (27) is provided on one side of the connecting block (26), the plug rod (18) is plugged into the plug hole (27), a strip-shaped slide groove is provided on the slotted plate (17), and the connecting rod (15) slides in the strip-shaped slide groove.

4. A high-voltage cabinet anti-mistaken entry interlocking device according to claim 1, characterized in that: The interlocking box (10) is connected with a guide block (28), the locking block (13) is provided with a guide groove (29), and the guide block (28) is slidably connected with the guide groove (29).

5. A high-voltage cabinet anti-mistaken entry interlocking device according to claim 1, characterized in that: One side of the interlock box (10) is electrically connected to a power supply assembly (30), an indicator light is installed on the power supply assembly (30), and the power supply assembly (30) is electrically connected to the control module (7), and the rotating wheel (14) is connected to a triangular block (31).

6. A high-voltage cabinet anti-mistaken entry interlocking device according to claim 1, characterized in that: The front door (2) and the rear door (6) are both provided with a switch handle (32), and the switch handle (32) and the rotating wheel (14) are provided with an insulating rubber sleeve.

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