Early warning system for high-voltage circuit breaker operating mechanisms

Abstract

This utility model provides an early warning system for the operating mechanism of a high-voltage circuit breaker, including a base, and a left side plate and a right side plate arranged parallel to each other on the top of the base. A first rotating shaft, a second rotating shaft, and a rotating column are provided between the left side plate and the right side plate. A first gear is provided on the first rotating shaft, and a second gear meshing with the first gear is provided on the second rotating shaft. A crank arm is provided at one end of the second rotating shaft, and a disc spring is connected to the crank arm. The other end of the disc spring is connected to the rotating column. A movable hinge is provided on the rotating column, and a telescopic rod is movably connected to the movable hinge. A movable part is provided at the front end of the telescopic rod, and a piston is movably connected to the movable part. A cylinder is provided inside the left side plate, and the piston is located inside the cylinder. A pipe is provided above the cylinder, and a detector for detecting the air pressure inside the cylinder is provided above the pipe. When the air pressure inside the cylinder changes, the detector monitors and transmits data in real time through the pipe. The system responds quickly, activates the protection mechanism, and achieves the early warning effect.

Description

Technical Field

[0001] This utility model relates to the field of circuit breakers, and more particularly to an early warning system for the operating mechanism of high-voltage circuit breakers. Background Technology

[0002] The operating mechanism of a high-voltage circuit breaker is a crucial component, its primary function being to ensure the circuit breaker can perform accurate and reliable opening and closing operations. The operating mechanism is responsible for converting other forms of energy, such as electrical, mechanical, or hydraulic energy, into mechanical energy to drive the circuit breaker in opening and closing operations. During closing operations, the operating mechanism needs to provide sufficient closing force to ensure the circuit breaker can reliably close under normal conditions, and also overcome the resistance of short-circuit electrodynamic forces when facing short-circuit faults, enabling the circuit breaker to close reliably.

[0003] Existing high-voltage circuit breaker operating mechanism early warning systems mostly rely on monitoring electrical parameters, such as changes in current and voltage, to determine the operating status of the operating mechanism. However, this monitoring method often suffers from limitations such as untimely or inaccurate detection, resulting in delayed detection results that cannot reflect the actual status of the operating mechanism in real time.

[0004] Therefore, an early warning system for the operating mechanism of high-voltage circuit breakers is proposed here to solve the aforementioned problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology in that the detection results of the operating mechanism are delayed and cannot be fed back in a timely manner, this utility model provides an early warning system for the operating mechanism of high voltage circuit breakers.

[0006] This utility model is achieved using the following technical solution:

[0007] An early warning system for the operating mechanism of a high-voltage circuit breaker includes a base, and a left side plate and a right side plate arranged parallel to each other on the top of the base. A first rotating shaft, a second rotating shaft, and a rotating column are provided between the left side plate and the right side plate. A first gear is provided on the first rotating shaft, and a second gear meshing with the first gear is provided on the second rotating shaft. A crank arm is provided at one end of the second rotating shaft, and a disc spring is connected to the crank arm. The other end of the disc spring is connected to the rotating column. A movable hinge is provided on the rotating column, and a telescopic rod is movably connected to the movable hinge. A movable part is provided at the front end of the telescopic rod, and a piston is movably connected to the movable part.

[0008] A cylinder is provided on the inner side of the left side plate, a piston is located inside the cylinder, a pipe is provided above the cylinder, and a detector for detecting the air pressure inside the cylinder is installed above the pipe.

[0009] As a preferred embodiment of this utility model, a third rotating shaft is provided between the left side plate and the right side plate. The third rotating shaft is located below the second rotating shaft. A third gear that meshes with the second gear is provided on the third rotating shaft. A switch with contacts is provided on one end of the third rotating shaft.

[0010] As a preferred embodiment of this utility model, a damping spring is provided inside the cylinder, with one end of the damping spring fixed to the bottom of the cylinder and the other end provided with a contact plate.

[0011] As a preferred embodiment of this utility model, a contact is provided on the outer wall of the right side plate, and the contact and the contact point are a combined structure.

[0012] As a preferred embodiment of this utility model, two protective plates are provided between the left side plate and the right side plate, and the two protective plates are bolted to the left side plate and the right side plate. Multiple heat dissipation holes are evenly provided on the two protective plates.

[0013] As a preferred embodiment of this utility model, the first rotating shaft, the second rotating shaft, the third rotating shaft, and the rotating column are all provided with bushings at both ends, and the bushings are fixedly installed between the left side plate and the right side plate.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. The first rotating shaft is connected to external electrical equipment. When the circuit needs to be closed, the first gear meshes with the second gear, which drives the crank arm at one end of the second rotating shaft to compress the disc spring. The disc spring causes the rotating column to rotate. At the same time as the rotating column rotates, the movable hinge rotates synchronously with the rotating column. The telescopic rod extends under the drive of the movable hinge. When the telescopic rod deforms, it pushes the piston to move through the movable part. The air pressure in the cylinder changes. The detector monitors and transmits data in real time through the pipeline. When the air pressure changes, the detector immediately issues an early warning signal. The system responds quickly and activates the protection mechanism to achieve the early warning effect.

[0016] 2. When closing the circuit is required, the second gear meshes with the third gear, causing the switch on the third shaft to rotate and deform. The switch contacts reach the contacts on the right side plate side wall, thus breaking the circuit. When opening the circuit is required, the switch is rotated to the initial position to separate the contacts from the contacts, restoring the circuit connection. This ensures safe and reliable operation and stable system operation. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the overall device of this utility model;

[0018] Figure 2 This is a diagram of the internal structure of the device of this utility model;

[0019] Figure 3 This is a structural diagram of the cylinder block of this utility model;

[0020] Figure 4 This is a structural diagram of the transmission relationship of this utility model;

[0021] In the diagram: 1. Base; 11. Left side plate; 12. Right side plate; 13. Protective plate; 14. Heat dissipation hole; 15. Bushing; 2. First rotating shaft; 21. First gear; 3. Second rotating shaft; 31. Second gear; 32. Crank arm; 33. Disc spring; 4. Third rotating shaft; 41. Third gear; 42. Switch; 43. Contact; 44. Contact head; 5. Rotating column; 51. Hinge; 52. Telescopic rod; 53. Moving part; 6. Cylinder; 61. Pipe; 62. Detector; 63. Piston; 64. Damping spring; 65. Contact plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figures 1-4 An early warning system for the operating mechanism of a high-voltage circuit breaker includes a base 1, and a left side plate 11 and a right side plate 12 arranged parallel to each other on the top of the base 1. A first rotating shaft 2, a second rotating shaft 3, and a rotating column 5 are provided between the left side plate 11 and the right side plate 12. A first gear 21 is provided on the first rotating shaft 2, and a second gear 31 that meshes with the first gear 21 is provided on the second rotating shaft 3. A crank arm 32 is provided at one end of the second rotating shaft 3, and a disc spring 33 is connected to the crank arm 32. The other end of the disc spring 33 is connected to the rotating column 5. A movable hinge 51 is provided on the rotating column 5, and a telescopic rod 52 is movably connected to the movable hinge 51. A movable part 53 is provided at the front end of the telescopic rod 52, and a piston 63 is movably connected to the movable part 53.

[0025] In this embodiment, the early warning system for the high-voltage circuit breaker operating mechanism includes a base plate. A left side plate 11 and a right side plate 12 are arranged on the top two sides of the base plate, parallel to each other. A first rotating shaft 2, a second rotating shaft 3, and a rotating column 5 are sequentially connected between the left side plate 11 and the right side plate 12 from top to bottom. The first rotating shaft 2 is connected to external electrical equipment. Upon receiving a signal, the first rotating shaft 2 rotates. A first gear 21 is mounted on the first rotating shaft 2, and a second gear 31 is mounted on the second rotating shaft 3. The second gear 31 meshes with the first gear 21. One end of the second rotating shaft 3 is connected to a crank arm 32, which is connected to the rotating column 5 via a disc spring 33. A movable hinge 51, which rotates synchronously with the movable column, is provided on the movable column. A telescopic rod 52 is movably connected to the movable hinge 51, allowing the telescopic rod 52 to rotate and extend on the movable hinge 51. A movable component 53 at the front end of the telescopic rod 52 is tightly connected to a piston 63, which reciprocates within the range of motion of the movable component 53.

[0026] A cylinder 6 is provided on the inner side of the left side plate 11, a piston 63 is located inside the cylinder 6, a pipe 61 is provided above the cylinder 6, and a detector 62 for detecting the air pressure inside the cylinder 6 is provided above the pipe 61.

[0027] In this embodiment, a cylinder 6 is provided inside one side of the left side plate 11, and a piston 63 is located inside the cylinder 6. A pipe 61 is provided above the cylinder 6. When the piston 63 moves, the pressure change inside the cylinder 6 is transmitted to the detector 62 through the pipe 61. When the detector 62 detects the pressure change inside the cylinder 6, the system responds quickly and activates the protection mechanism to achieve an early warning effect.

[0028] Specifically, a third rotating shaft 4 is provided between the left side plate 11 and the right side plate 12. The third rotating shaft 4 is located below the second rotating shaft 3. A third gear 41 that meshes with the second gear 31 is provided on the third rotating shaft 4. A switch 42 is provided at one end of the third rotating shaft 4, and a contact 43 is provided on the switch 42.

[0029] In this embodiment, the third rotating shaft 4 is located below the second rotating shaft 3. A third gear 41 is provided on the third rotating shaft 4. The third gear 41 is meshed with the second gear 31. When the switch is closed, the second gear 31 receives the power transmission from the first gear 21 and drives the third gear 41 to rotate. The third rotating shaft 4 rotates accordingly, causing the switch 42 to close quickly.

[0030] Specifically, a damping spring 64 is provided inside the cylinder body 6. One end of the damping spring 64 is fixed to the bottom of the cylinder body 6, and the other end is provided with a contact plate 65.

[0031] In this embodiment, a damping spring 64 is provided inside the cylinder 6, and a contact plate 65 is provided at one end of the damping spring 64. When the piston 63 moves inside the cylinder 6, the contact plate 65 interacts with the damping spring 64 to reduce the impact of the piston 63.

[0032] Specifically, a contact 44 is provided on the outer wall of the right side plate 12, and the contact 44 and the contact point 43 are a combined structure.

[0033] In this embodiment, a contact 44 is provided on the outer wall of the left side plate 11. When the switch 42 receives a signal, the switch 42 rotates to drive the contact 43 to contact the contact 44, forming a closed circuit.

[0034] Specifically, two protective plates 13 are provided between the left side plate 11 and the right side plate 12. The two protective plates 13 are bolted to the left side plate 11 and the right side plate 12, and multiple heat dissipation holes 14 are evenly provided on the two protective plates 13.

[0035] In this embodiment, two protective plates 13 are provided. The two protective plates 13 are used to protect the inside of the equipment and prevent impurities from entering and affecting the closing effect. Multiple heat dissipation holes 14 are evenly distributed on the protective plates 13 to ensure heat dissipation of the equipment. The two protective plates 13 are tightly connected to the left side plate 11 and the right side plate 12 by bolts, which facilitates maintenance and replacement.

[0036] Specifically, the first rotating shaft 2, the second rotating shaft 3, the third rotating shaft 4, and the rotating column 5 are all provided with bushings 15 at both ends, and the bushings 15 are fixedly installed between the left side plate 11 and the right side plate 12.

[0037] In this embodiment, the bushing 15 is used to protect the independent movement of each rotating shaft, prevent wear, and ensure that the equipment can perform closing and opening operations efficiently and stably.

[0038] The principle of this utility model is as follows: When the circuit needs to be closed, the first gear 21 meshes with the second gear 31, which drives the crank arm 32 at one end of the second rotating shaft 3 to compress the disc spring 33. The disc spring 33 causes the rotating column 5 to rotate. At the same time as the rotating column 5 rotates, the movable hinge 51 rotates synchronously with the rotating column 5. The telescopic rod 52 extends under the drive of the movable hinge 51. While the telescopic rod 52 is deformed, it pushes the piston 63 to move through the movable part 53. The air pressure inside the cylinder 6 changes. The detector 62 monitors and transmits data in real time through the pipeline 61. When the air pressure changes, the detector 62 immediately issues an early warning signal. The system responds quickly and activates the protection mechanism to achieve the early warning effect. At the same time as the circuit is closed, the second gear 31 meshes with the third gear 41, which drives the switch 42 on the third rotating shaft 4 to rotate and deform. The contact 43 of the switch 42 reaches the contact 44 on the side wall of the right side plate 12, realizing the circuit disconnection. When the circuit needs to be opened, the switch 42 is rotated to the initial position to separate the contact 43 from the contact 44, and the circuit is restored, ensuring safe and reliable operation and stable system operation.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A warning system for a high-voltage circuit breaker operating mechanism, comprising a base (1), and a left side plate (11) and a right side plate (12) arranged parallel to each other on the top of the base (1), characterized in that: A first rotating shaft (2), a second rotating shaft (3), and a rotating column (5) are provided between the left side plate (11) and the right side plate (12). A first gear (21) is provided on the first rotating shaft (2), and a second gear (31) meshing with the first gear (21) is provided on the second rotating shaft (3). A crank arm (32) is provided at one end of the second rotating shaft (3), and a disc spring (33) is connected to the crank arm (32). The other end of the disc spring (33) is connected to the rotating column (5). A movable hinge (51) is provided on the rotating column (5), and a telescopic rod (52) is movably connected to the movable hinge (51). A movable part (53) is provided at the front end of the telescopic rod (52), and a piston (63) is movably connected to the movable part (53). A cylinder (6) is provided on the inner side of the left side plate (11), a piston (63) is located inside the cylinder (6), a pipe (61) is provided above the cylinder (6), and a detector (62) for detecting the air pressure inside the cylinder (6) is provided above the pipe (61).

2. The early warning system for the operating mechanism of a high-voltage circuit breaker according to claim 1, characterized in that: A third rotating shaft (4) is provided between the left side plate (11) and the right side plate (12). The third rotating shaft (4) is located below the second rotating shaft (3). A third gear (41) that meshes with the second gear (31) is provided on the third rotating shaft (4). A switch (42) is provided on one end of the third rotating shaft (4). A contact (43) is provided on the switch (42).

3. The early warning system for the operating mechanism of a high-voltage circuit breaker according to claim 2, characterized in that: The cylinder (6) is provided with a damping spring (64), one end of which is fixed to the bottom of the cylinder (6), and the other end is provided with a contact plate (65).

4. The early warning system for the operating mechanism of a high-voltage circuit breaker according to claim 3, characterized in that: The outer wall of the right side plate (12) is provided with a contact (44), and the contact (44) and the contact point (43) are a combined structure.

5. The early warning system for the operating mechanism of a high-voltage circuit breaker according to claim 4, characterized in that: Two protective plates (13) are provided between the left side plate (11) and the right side plate (12). The two protective plates (13) are bolted to the left side plate (11) and the right side plate (12). Multiple heat dissipation holes (14) are evenly provided on the two protective plates (13).

6. The early warning system for the operating mechanism of a high-voltage circuit breaker according to claim 5, characterized in that: The first rotating shaft (2), the second rotating shaft (3), the third rotating shaft (4), and the rotating column (5) are all provided with bushings (15) at both ends. The bushings (15) are fixedly installed between the left side plate (11) and the right side plate (12).

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