Opening and closing operation structure of circuit breaker

Abstract

The utility model relates to the technical field of circuit breaker opening and closing structures, and discloses an opening and closing operation structure of a circuit breaker, which comprises a transmission assembly, a second gear rotationally arranged on one side of the transmission assembly, a metal rod rotationally connected to the transmission assembly, an operation handle rotationally connected to one end of the metal rod, and a second gear rotationally connected to the other end of the operation handle. A motor is fixedly arranged below the transmission assembly, a driving rod used for driving the transmission assembly is installed at the output end of the motor in a sliding mode, the driving rod is sleeved with a spring, and the spring is connected to one side of an output shaft of the motor. According to the opening and closing operation structure, the motor is adopted to drive the transmission assembly to control the metal rod to swing and drive the operation handle, rapid electric opening and closing operation is achieved, the second gear can be manually driven to rotate, control over the operation handle is achieved under transmission of the first gear, and the driving rod is arranged in the first gear for driving. The transmission response is rapid, the gear I rotates stably, and the driving rod does not influence the manual driving work of the gear I during manual operation.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker opening and closing structures, in particular to an opening and closing operating structure of a circuit breaker. Background Art

[0002] During the use of circuit breakers, emergency opening is required to protect the electrical equipment in the circuit, and usually circuit breakers are operated manually.

[0003] In the prior art, the name disclosed in the application number: CN202021264869.4 is: a circuit breaker opening and closing component installation structure, which includes an opening component and a closing component. The opening component and the closing component are integrated and installed together, and the opening and closing operations are driven by a motor.

[0004] However, the opening and closing components mentioned in the prior art have a complex structure and poor stability in actual use, which easily causes delays in opening and closing operations. At the same time, the opening and closing operations cannot be performed manually, which poses a safety hazard. Therefore, it is necessary to design an opening and closing operating structure for a circuit breaker. Utility Model Content

[0005] The utility model aims to provide a circuit breaker opening and closing operating structure to solve the problems in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A circuit breaker opening and closing operating structure comprises a transmission assembly, one side of the transmission assembly is rotatably provided with a gear 2, the transmission assembly is rotatably connected to a metal rod, one end of the metal rod is rotatably connected to an operating handle for operating the circuit breaker opening and closing.

[0008] A motor is fixedly arranged below the transmission assembly, and a driving rod for driving the transmission assembly is slidably mounted on the output end of the motor. A spring is sleeved on the driving rod, and the spring is connected to one side of the output shaft of the motor.

[0009] Furthermore, the transmission assembly includes gear one and a drive plate, gear one cooperates with gear two, a joystick for manually operating the opening and closing of the switch is fixedly connected to the axis of gear two, and the drive plate is fixedly mounted on gear one.

[0010] Furthermore, a connecting block is fixedly provided on one side of the driving plate, a connecting hole is provided on the connecting block, a circular hole is provided at one end of the metal rod, a connecting rod is rotatably installed in the circular hole, and the connecting rod passes through the circular hole and is connected to the connecting hole.

[0011] Furthermore, a through groove is provided at the axis center of the gear 1, and an array of protrusions are fixed in the through groove. An arc surface is provided on one side of the protrusion, and one end of the driving rod is slidably connected to the arc surface, and the protrusion cooperates with the end of the driving rod.

[0012] Furthermore, the opening and closing operating structure is installed in the circuit breaker, the circuit breaker includes a middle shell, the operating handle is rotatably installed on the middle shell, a mounting groove for fixing the motor is fixed in the middle shell, and a pressure rod for locking the motor is fixed on the mounting groove.

[0013] Furthermore, a mounting frame for rotatably mounting the joystick is fixedly provided in the middle shell, a gear pressure plate for limiting the position of the gear is fixed on the pressure rod, and the driving plate is rotatably arranged between the gear pressure plate and the mounting frame.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model of the opening and closing operating structure adopts a motor to drive the transmission component to control the swing of the metal rod, drive the operating handle, and realize fast electric opening and closing operation. At the same time, the second gear can be manually driven to rotate, and the operating handle can be controlled under the transmission of the first gear to realize manual operation. The structure is compact and simple, and the operation process is sensitive and rapid;

[0016] 2. The opening and closing operating structure of the utility model is applied to the circuit breaker, occupies a small space, and a driving rod is arranged in the gear one for driving. The transmission response is rapid, the transmission effect is obvious, and the rotation of the gear one is stable. At the same time, during manual operation, the driving rod will not affect the manual driving work of the gear one. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the opening and closing operating structure of the utility model;

[0020] Figure 3 It is a partial schematic diagram of the opening and closing operating structure of the utility model;

[0021] Figure 4 It is an exploded schematic diagram of the opening and closing operating structure of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] A circuit breaker opening and closing operating structure, such as Figure 1 As shown, the opening and closing operating structure is applied inside the circuit breaker to intelligently and automatically control the circuit breaker to perform opening and closing operations.

[0024] Among them, the circuit breaker includes a middle shell 2, on which an operating handle 21 is rotatably installed. The operating handle 21 can be rotated to control the mechanism in the circuit breaker to perform opening and closing operations. This is a prior art and will not be described in detail here. A mounting groove 22 is fixedly provided in the middle shell 2 and located on one side of the operating handle 21. A motor 5 is fixedly installed in the mounting groove 22. A pressure rod 24 is fixedly installed on the mounting groove 22 to fix the upper end of the motor 5.

[0025] A gear 11 is installed at the output end of the motor 5, and a gear 2 41 is meshed on one side of the gear 11. A joystick 4 is fixedly connected to the axis of the gear 2 41. Manually rotating the joystick 4 can drive the gear 2 41 to rotate. The gear 11 and the gear 2 41 cooperate to drive the gear 11 to rotate, thereby realizing manual control of the opening and closing operation.

[0026] A mounting frame 23 is fixedly disposed in the middle housing 2 , and the operating lever 4 is rotatably disposed on the mounting frame 23 .

[0027] A gear pressure plate 25 is fixedly mounted on the pressure rod 24, and the gear 11 rotates between the gear pressure plate 25 and the pressure rod 24. A driving plate 12 is fixedly mounted on the gear 11. Driven by the gear 11, the driving plate 12 rotates between the gear pressure plate 25 and the mounting frame 23, and a connecting block 15 is fixedly mounted on one side of the driving plate 12, and a connecting hole is opened on the connecting block 15.

[0028] A metal rod 3 is rotatably connected to the driving plate 12. A circular hole is provided at one end of the metal rod 3, and a connecting groove is provided at the other end. A screw passes through the connecting groove and is fixedly connected to the top of the operating handle 21. A connecting rod 31 is rotatably installed in the circular hole. The connecting rod 31 is one of a rivet, a screw, and a rivet rod, and is made of Q235 steel. After the connecting rod 31 passes through the circular hole, it is fixed to the connecting hole by riveting, so that the connecting rod 31 is rotatably connected to the metal rod 3. The screw passes through the driving plate 12 and is fixedly connected to the gear 11, thereby fixing the driving plate 12 on the gear 11 to form a transmission assembly 1.

[0029] A through groove is provided at the axis center of the gear 11, and an array of protrusions 13 are fixed in the through groove. An arc surface 14 is provided on one side of the protrusion 13. A driving rod 51 is slidably installed on the output shaft of the motor 5. One end of the driving rod 51 is slidably connected to the arc surface 14. A spring 52 is sleeved on the driving rod 51. The driving rod 51 is fixedly connected to one end of the spring 52, and the other end of the spring 52 is connected to the output shaft of the motor 5. After one end of the driving rod 51 is in contact with the protrusion 13, the gear 11 is driven to rotate through the motor 5.

[0030] Here’s how it works:

[0031] In actual use of circuit breakers, usually only manual opening and closing functions are set, which cannot meet various emergencies in the circuits of electrical equipment.

[0032] Therefore, in this embodiment, the opening and closing operating structure adopts manual and electric dual modes to perform rapid opening and closing operations of the circuit breaker. The operation is rapid, and the dual modes are highly flexible in actual use, making the circuit breaker safer to use.

[0033] Specifically, the motor 5 controls the driving rod 51 to rotate, and the driving rod 51 connected to the driving rod 51 drives the gear 11 to rotate, so that the metal rod 3 rotatably connected to the driving plate 12 swings, and the operating handle 21 is pulled to rotate on the circuit breaker, thereby realizing rapid electric opening and closing operations.

[0034] If the motor 5 fails to drive or other faults cause the electric opening and closing switch to fail to work normally, the joystick 4 can be manually rotated to drive the gear 2 41 to rotate, and the gear 1 11 and the gear 2 41 cooperate to drive the gear 11 to rotate, thereby realizing manual control of the opening and closing operation.

[0035] In this embodiment, the circuit breaker opening and closing operations are performed in two modes: manual and electric. The driving rod 5 cooperates with the protrusion 13 in the gear 11, so no obstruction will occur during manual operation, and the actual manual operation is labor-saving and convenient.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A circuit breaker opening and closing operating structure, characterized in that: The switch-on and switch-off operating structure comprises a transmission assembly (1), one side of the transmission assembly (1) is rotatably provided with a second gear (41), the transmission assembly (1) is rotatably connected to a metal rod (3), and one end of the metal rod (3) is rotatably connected to an operating handle (21) for operating the switch-on and switch-off of the circuit breaker; A motor (5) is fixedly provided below the transmission assembly (1); a driving rod (51) for driving the transmission assembly (1) is slidably mounted on the output end of the motor (5); a spring (52) is sleeved on the driving rod (51); and the spring (52) is connected to one side of the output shaft of the motor (5).

2. A circuit breaker opening and closing operating structure according to claim 1, characterized in that: The transmission assembly (1) comprises a gear one (11) and a drive plate (12); the gear one (11) cooperates with the gear two (41); a joystick (4) for manually operating the opening and closing of the switch is fixedly connected to the axis of the gear two (41); and the drive plate (12) is fixedly mounted on the gear one (11).

3. A circuit breaker opening and closing operating structure according to claim 2, characterized in that: A connecting block (15) is fixedly provided on one side of the driving plate (12), and a connecting hole is provided on the connecting block (15). A circular hole is provided at one end of the metal rod (3), and a connecting rod (31) is rotatably installed in the circular hole. The connecting rod (31) passes through the circular hole and is connected to the connecting hole.

4. The circuit breaker opening and closing operating structure according to claim 3, characterized in that: A through groove is provided at the axis center of the gear 1 (11), and an array of protrusions (13) are fixedly provided in the through groove. An arc surface (14) is provided on one side of the protrusion (13), and one end of the driving rod (51) is slidably connected to the arc surface (14), and the protrusion (13) is matched with the end of the driving rod (51).

5. The circuit breaker opening and closing operating structure according to claim 1, characterized in that: The opening and closing operating structure is installed in a circuit breaker, the circuit breaker comprises a middle housing (2), an operating handle (21) is rotatably mounted on the middle housing (2), a mounting groove (22) for fixing a motor (5) is fixedly provided in the middle housing (2), and a pressure rod (24) for locking the motor (5) is fixed on the mounting groove (22).

6. A circuit breaker opening and closing operating structure according to claim 5, characterized in that: A mounting frame (23) for rotatably mounting the operating lever (4) is fixedly provided in the middle housing (2), a gear pressing plate (25) for limiting the position of the gear 1 (11) is fixedly provided on the pressing rod (24), and the driving plate (12) is rotatably arranged between the gear pressing plate (25) and the mounting frame (23).

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