A circuit breaker operating mechanism

Abstract

The present invention relates to the technical field of circuit breakers, and discloses a circuit breaker operating mechanism, including a mounting plate, a symmetrical column connected to the mounting plate, a rotating piece slidably connected to the symmetrical column, an arc groove and a toggle opening provided on the rotating piece, a toggle lever provided in the toggle opening, the toggle lever connected to the circuit breaker switch, a flameproof shaft connected to the rotating piece, a retaining ring and an O-ring connected to the flameproof shaft, a copper sleeve connected to the flameproof shaft through a nut, a pin hole provided on the rotating piece, a limiter connected to the pin hole for limiting the rotation of the rotating piece, the limiter including a positioning rod, the positioning rod connected to a lifting rod through a synchronization bar, and a connecting bar connected to the upper end of the lifting rod. The present invention utilizes the cooperation between the positioning rod and the pin hole to limit the rotation of the rotating piece, thereby preventing workers from opening and closing the circuit breaker due to accidental collision, and non-professionals cannot operate the opening and closing of the circuit breaker, providing a strong guarantee for the stable use of the circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a circuit breaker operating mechanism. Background Art

[0002] A circuit breaker is a switch device that can close, carry and interrupt the current under normal circuit conditions and close, carry and interrupt the current under abnormal circuit conditions within a specified time. It can be used to distribute electric energy, start asynchronous motors infrequently, and protect power lines and motors. It is divided into many types according to the arc extinguishing medium.

[0003] When the paddle of a current circuit breaker needs to be turned, the circuit breaker installation cabinet needs to be opened before the circuit breaker structure inside the cabinet can be operated. The operation is cumbersome, and the independent circuit breaker switches need to be turned one by one, which increases the operating burden of the operator. When the circuit breaker switch is turned on and off in an emergency, the traditional circuit breaker operation steps are cumbersome and cannot meet the unified operation requirements in an emergency. In addition, when operating the paddle switch of a traditional circuit breaker, no additional limit is set, so there is a problem of accidental touch causing the circuit breaker to be turned on and off, which in turn affects the factory production process.

[0004] In order to complete the use record of the circuit breaker, the operator needs to operate the circuit breaker and then record the operation time and operation method in a notebook on the side of the circuit breaker installation cabinet. This recording process has errors and omissions.

[0005] Based on this, a circuit breaker operating mechanism is proposed. Summary of the invention

[0006] The purpose of the present invention is to propose a circuit breaker operating mechanism in order to solve the above problems.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A circuit breaker operating mechanism comprises a mounting plate, wherein a symmetrical column is connected to the mounting plate, a rotating piece is slidably connected to the symmetrical column, an arc groove and a toggle opening are provided on the rotating piece, a toggle opening is provided with a toggle lever, the toggle lever is connected to the circuit breaker switch, a flameproof shaft is connected to the rotating piece, a retaining spring and an O-ring are connected to the flameproof shaft, a copper sleeve is connected to the flameproof shaft via a nut, a pin hole is provided on the rotating piece, and a limiter for limiting the rotation of the rotating piece is connected to the pin hole.

[0009] Preferably, the limiting member includes a positioning rod, the positioning rod is connected to a lifting rod through a synchronization bar, the upper end of the lifting rod is connected to a connecting bar, a supporting spring is connected between the connecting bar and the mounting plate, the supporting spring is sleeved on the outside of the lifting rod, one side of the connecting bar is connected to a pressing component for canceling the limiting state between the positioning rod and the pin hole, and one side of the connecting bar is connected to a recording component for recording the movement of the lever.

[0010] Preferably, the pressing assembly comprises a lower pressing plate, the upper end of which is connected to a pressing bar, the pressing bar is slidably connected to the housing of the circuit breaker mounting cabinet, the pressing bar is connected to a spring plate, and the spring plate is connected to a recovery spring.

[0011] Preferably, the recording assembly includes a detection unit, the mounting plate is connected to a connecting frame, the connecting frame is connected to a sensor, the sensor is connected to the detection unit through a lead wire, the connecting frame is slidably connected to a pressing rod, the connecting bar is rotatably connected to a synchronization column, and the upper and lower ends of the synchronization column are respectively connected to a turntable and a friction column;

[0012] The friction column is provided with a second friction surface, and the rotating sheet is provided with a first friction surface.

[0013] Preferably, one end of the pressing rod is connected to a pressing plate, and a separation spring is connected between the pressing plate and the connecting frame.

[0014] Preferably, a reset frame is connected to one side of the connecting strip, a sliding column is slidably connected to the reset frame, a reset spring is connected to the outer side of the sliding column, and the sliding column is fixedly connected to the outer side of the friction column.

[0015] Preferably, a sliding rod is connected to the reset frame, the sliding column is slidably connected to the sliding rod, and the reset spring is sleeved on the sliding rod.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The present application adopts a positioning rod structure and utilizes the cooperation between the positioning rod and the pin hole to limit the rotation of the rotating piece, thereby preventing workers from opening and closing the circuit breaker due to accidental collision, and non-professionals cannot operate the opening and closing of the circuit breaker, providing a strong guarantee for the stable use of the circuit breaker.

[0018] 2. The present application adopts a sensor structure and uses a sensor to monitor the rotation of the rotating plate. When the rotating plate rotates, the sensor is squeezed by the pressing plate, thereby transmitting a signal to the detection unit, thereby automatically recording the use of the circuit breaker and providing powerful data information for subsequent maintenance and use of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A partial structural schematic diagram of a connection structure on a circuit breaker provided according to an embodiment of the present invention is shown;

[0020] Figure 2 It shows a schematic structural diagram of the connection of the mounting plate provided in an embodiment of the present invention;

[0021] Figure 3 It shows a schematic structural diagram of the connection of the rotating piece provided in an embodiment of the present invention;

[0022] Figure 4 It shows a schematic structural diagram of a connection portion of a connection frame provided in an embodiment of the present invention;

[0023] Figure 5 A schematic structural diagram of a reset frame connection provided according to an embodiment of the present invention is shown;

[0024] Figure 6 A schematic diagram of the structure of the connection of the pressing strip provided according to an embodiment of the present invention is shown;

[0025] Figure 7 A schematic structural diagram of a reset frame connection provided according to an embodiment of the present invention is shown;

[0026] Figure 8 A schematic diagram of a half-section structure of a flameproof shaft provided according to an embodiment of the present invention is shown.

[0027] Legend:

[0028] 1. Mounting plate; 2. Rotating plate; 3. Driving port; 4. Nut; 5. Flameproof shaft; 6. Pressing strip; 7. Connecting strip; 8. Turntable; 9. Detection unit; 10. Connecting frame; 11. Copper sleeve; 12. Arc groove; 13. Symmetrical column; 14. Friction surface one; 15. Support spring; 16. Lifting rod; 17. Pressing rod; 18. Separation spring; 19. Sensor; 20. Pressing plate; 21. Positioning rod; 22. Pin hole; 23. Reset frame; 24. Sliding column; 25. Friction column; 26. Friction surface two; 27. Lower pressure plate; 28. Spring plate; 29. ​​Recovery spring; 30. Synchronous column; 31. Sliding rod; 32. Reset spring; 33. Synchronous strip; 34. O-ring; 35. Retaining spring; 36. Driving rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1-8 , the present invention provides a technical solution:

[0031] A circuit breaker operating mechanism includes a mounting plate 1, a symmetrical column 13 is connected to the mounting plate 1, a rotating piece 2 is slidably connected to the symmetrical column 13, an arc groove 12 and a toggle opening 3 are provided on the rotating piece 2, the symmetrical column 13 is slidably connected to the arc groove 12, the toggle opening 3 is rectangular, thereby increasing the diversity of the connection position of the rotating piece 2, so that the structure can be adjusted in the subsequent increase in the number of circuit breakers to be controlled, a toggle lever 36 is arranged in the toggle opening 3, the toggle lever 36 is connected to the circuit breaker switch, and each circuit breaker switch is connected to the toggle lever 36, so that when the toggle lever 36 is toggled, each circuit breaker switch Each circuit breaker can perform opening and closing actions in a unified manner. A flameproof shaft 5 is connected to the rotating piece 2. The lower end of the flameproof shaft 5 and the rotating piece 2 are in a clamping state. A retaining spring 35 and an O-ring 34 are connected to the flameproof shaft 5. Two retaining springs 35 are provided, and the O-ring 34 is sleeved on the outside of the flameproof shaft 5. The flameproof shaft 5 is connected to a copper sleeve 11 through a nut 4. The copper sleeve 11 has the effect of stably connecting the flameproof shaft 5 to the cabinet door. A pin hole 22 is provided on the rotating piece 2. The pin hole 22 is set in the middle position of one end of the two arc grooves 12. A limit member for limiting the rotation of the rotating piece 2 is connected to the pin hole 22.

[0032] Specifically, Figure 5 As shown, the limiting member includes a positioning rod 21, two positioning rods 21 are provided, and the two positioning rods 21 are arranged parallel to each other. The positioning rod 21 is connected to the lifting rod 16 through the synchronization bar 33, and the lifting rod 16 and the positioning rod 21 are both vertically connected to the synchronization bar 33. The upper end of the lifting rod 16 is connected to a connecting bar 7, and a supporting spring 15 is connected between the connecting bar 7 and the mounting plate 1. The supporting spring 15 can pull the positioning rod 21 to be clamped in the pin hole 22, thereby playing a role in limiting the rotating piece 2. The supporting spring 15 is sleeved on the outer side of the lifting rod 16, and one side of the connecting bar 7 is connected to a pressing component for canceling the limiting state between the positioning rod 21 and the pin hole 22. The pressing component is connected to the cabinet door of the circuit breaker installation cabinet, and one side of the connecting bar 7 is connected to a recording component for recording the toggling status of the toggle rod 36. The recording component is arranged inside the cabinet. After the recording is completed, the recorded data is transmitted to the terminal, and the operator can view the opening and closing information of the circuit breaker online. The data transmission and recording are directly quoted from the prior art and will not be described in detail here.

[0033] Specifically, Figure 6 As shown, the pressing assembly includes a lower pressing plate 27, the upper end of the lower pressing plate 27 is connected to a pressing bar 6, the pressing bar 6 is slidably connected to the circuit breaker mounting cabinet housing, the pressing bar 6 is connected to a spring plate 28, and the spring plate 28 is connected to a recovery spring 29, wherein the recovery spring 29 can pull the pressing bar 6 to move toward the outside of the cabinet, and when the circuit breaker needs to be toggled, it is necessary to overcome the recovery spring 29 and press the pressing bar 6 structure in the opposite direction.

[0034] Specifically, as Figure 2 , Figure 4 and Figure 6 shown, the recording component includes a detection unit 9. A connecting frame 10 is connected to the mounting plate 1, a sensor 19 is connected to the connecting frame 10, the sensor 19 is connected to the detection unit 9 through a lead wire, the detection unit 9 is fixedly connected to the mounting plate 1, a pressing rod 17 is slidably connected to the connecting frame 10, a synchronous column 30 is rotatably connected to the connecting bar 7, a turntable 8 and a friction column 25 are respectively connected to the upper and lower ends of the synchronous column 30, and the turntable 8 and the friction column 25 are kept in synchronous rotation and vertical movement;

[0035] A second friction surface 26 is provided on the friction column 25, and a first friction surface 14 is provided on the rotating piece 2. The lower surface of the friction column 25 is in a conical frustum structure, and the first friction surface 14 on one side of the rotating piece 2 is a partial conical inclined surface structure. When the friction column 25 contacts the rotating piece 2, it is the contact between the first friction surface 14 and the second friction surface 26.

[0036] Specifically, as Figure 4 shown, one end of the pressing rod 17 is connected with a pressing disc 20, a separating spring 18 is connected between the pressing disc 20 and the connecting frame 10. The separating spring 18 can push the pressing disc 20 away from the sensor 19. Only when the turntable 8 rotates, can it contact the pressing rod 17 through the turntable 8, so as to overcome the separating spring 18 and drive the pressing disc 20 to press the sensor 19. Among them, the sensor 19 can convert the pressing signal and transmit it to the detection unit 9.

[0037] Specifically, as Figure 6 and Figure 7 shown, a reset frame 23 is connected to one side of the connecting bar 7, a sliding column 24 is slidably connected to the reset frame 23, two reset springs 32 are connected to the outside of the sliding column 24, and the two reset springs 32 are symmetrically connected to the outside of the sliding column 24. The reset springs 32 can push the sliding column 24 to the middle position of the reset frame 23, and the sliding column 24 is fixedly connected to the outside of the friction column 25.

[0038] Specifically, as Figure 7 shown, a sliding rod 31 is connected to the reset frame 23, the sliding column 24 is slidably connected to the sliding rod 31, the reset spring 32 is sleeved on the sliding rod 31, and one end of the reset spring 32 is connected to the reset frame 23.

[0039] To sum up, the present embodiment provides a circuit breaker operating mechanism, which is installed in a cabinet, and only the flameproof shaft 5 and one end of the pressing strip 6 are included in the external environment. In order to improve the convenience of rotating the flameproof shaft 5, a knob structure can be connected to the direction block at one end of the flameproof shaft 5. When it is necessary to uniformly operate the opening and closing of the circuit breaker, the pressing strip 6 on the outside of the cabinet can be pressed to stretch the recovery spring 29, and the lower pressure plate 27 is used to press the upper surface of the friction column 25, thereby driving the friction column 25 to move toward the mounting plate 1. After the pressing of the pressing strip 6 is completed, the friction surface 26 on the friction column 25 just fits with the friction surface 14 on the rotating plate 2.

[0040] When the friction column 25 moves, it can synchronously drive the connecting bar 7 to move. At this time, the positioning rod 21 clamped in the pin hole 22 on the rotating piece 2 is separated from the rotating piece 2. At this time, the positioning rod 21 cancels the limit on the rotating piece 2, and the operator can easily rotate the flameproof shaft 5, thereby driving the rotating piece 2 to rotate. When the rotating piece 2 rotates, the toggle opening 3 opened on the rotating piece 2 is used to uniformly toggle the toggle rod 36, thereby driving each circuit breaker to be uniformly opened and closed, wherein one end of the toggle rod 36 is connected to the switch of each circuit breaker.

[0041] During the rotation of the rotating plate 2, the friction surface 14 is in contact with the friction surface 26, thereby driving the friction column 25 to rotate. When the friction column 25 rotates, it can drive the turntable 8 to rotate. Two notches are provided on the turntable 8, one of which is for avoiding the lower pressure plate 27, and the other is for cooperating with the pressing rod 17. When the turntable 8 rotates, the notch can be rotated to push the pressing rod 17 to move, so that the separation spring 18 is stretched, and the pressing plate 20 connected to one end of the pressing rod 17 is used to press the sensor 19. At this time, the sensor 19 can transmit data such as the pressing time to the detection unit 9, so as to uniformly record the use of the circuit breaker, and the forward and reverse rotation of the rotating plate 2 will be recorded.

[0042] After the rotating piece 2 toggles the circuit breaker to open or close, a spring structure is also provided inside the circuit breaker to stabilize the opening or closing state of the circuit breaker. At this time, the pressing strip 6 is released, and the supporting spring 15 is used to support the connection strip 7 to rise in height, thereby separating the friction column 25 from the rotating piece 2. At this time, the positioning rod 21 can be re-engaged in the pin hole 22. There are two positioning rods 21, which correspond to the opening or closing states of the circuit breaker respectively. When one of the positioning rods 21 is engaged in the pin hole 22, the other positioning rod 21 enters the arc groove 12.

[0043] A single operating mechanism can control multiple groups of circuit breakers at the same time. It only needs to set an extension plate on one side of the circuit breaker, thereby increasing the number of installed circuit breakers. The switch paddles of multiple circuit breakers are uniformly connected to the paddle rod 36.

[0044] In order to ensure the firm connection between the flameproof shaft 5 and the cabinet door, a copper sleeve 11 structure is added. The copper sleeve 11 is clamped on the housing and cooperates with the nut 4 to complete the connection of the structure. Two groups of circlips 35 are connected to the flameproof shaft 5 to prevent the separation between the flameproof shaft 5 and the copper sleeve 11. An O-ring 34 is arranged between the flameproof shaft 5 and the copper sleeve 11 to prevent the flameproof shaft 5 from shaking inside the copper sleeve 11 and improve the connection stability of the flameproof shaft 5. The upper and lower ends of the flameproof shaft 5 are both square block structures. The square block structure at the upper end facilitates the connection with structures such as the knob, increasing the convenience of rotating the flameproof shaft 5. The square block structure at the lower end improves the clamping convenience between the flameproof shaft 5 and the rotating piece 2. When the cabinet door of the circuit breaker is closed, the lower end of the flameproof shaft 5 can accurately dock with the rotating piece 2 inside the cabinet, improving the accuracy of the installation of the operating mechanism.

[0045] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A circuit breaker operating mechanism, including a mounting plate (1), characterized in that, The mounting plate (1) is connected to a symmetrical column (13), a rotating plate (2) is slidably connected to the symmetrical column (13), an arc groove (12) and a toggle opening (3) are provided on the rotating plate (2), a toggle opening (3) is provided with a toggle rod (36), the toggle opening (3) is connected to a circuit breaker switch, a flameproof shaft (5) is connected to the rotating plate (2), a retaining ring (35) and an O-ring (34) are connected to the flameproof shaft (5), the flameproof shaft (5) is connected to a copper sleeve (11) via a nut (4), a pin hole (22) is provided on the rotating plate (2), a limiter for limiting the rotation of the rotating plate (2) is connected to the pin hole (22); The limiting member comprises a positioning rod (21), the positioning rod (21) is connected to a lifting rod (16) via a synchronization bar (33), the upper end of the lifting rod (16) is connected to a connecting bar (7), a supporting spring (15) is connected between the connecting bar (7) and the mounting plate (1), the supporting spring (15) is sleeved on the outside of the lifting rod (16), one side of the connecting bar (7) is connected to a pressing component for canceling the limiting state between the positioning rod (21) and the pin hole (22), and one side of the connecting bar (7) is connected to a recording component for recording the movement of the lever (36); The recording assembly comprises a detection unit (9), a connecting frame (10) is connected to the mounting plate (1), a sensor (19) is connected to the connecting frame (10), the sensor (19) is connected to the detection unit (9) via a lead wire, a pressing rod (17) is slidably connected to the connecting frame (10), a synchronization column (30) is rotatably connected to the connecting bar (7), and the upper and lower ends of the synchronization column (30) are respectively connected to a rotating disk (8) and a friction column (25); The friction column (25) is provided with a second friction surface (26), and the rotating plate (2) is provided with a first friction surface (14).

2. The circuit breaker operating mechanism according to claim 1, characterized in that, The pressing assembly comprises a lower pressing plate (27), the upper end of the lower pressing plate (27) is connected to a pressing strip (6), the pressing strip (6) is slidably connected to the housing of the circuit breaker mounting cabinet, the pressing strip (6) is connected to a spring plate (28), and the spring plate (28) is connected to a recovery spring (29).

3. The circuit breaker operating mechanism according to claim 1, characterized in that, One end of the pressing rod (17) is connected to a pressing plate (20), and a separation spring (18) is connected between the pressing plate (20) and the connecting frame (10).

4. A circuit breaker operating mechanism according to claim 1, characterized in that, One side of the connecting strip (7) is connected to a reset frame (23), a sliding column (24) is slidably connected to the reset frame (23), a reset spring (32) is connected to the outside of the sliding column (24), and the sliding column (24) is fixedly connected to the outside of the friction column (25).

5. The circuit breaker operating mechanism according to claim 4, characterized in that, The reset frame (23) is connected to a slide rod (31), the slide column (24) is slidably connected to the slide rod (31), and the reset spring (32) is sleeved on the slide rod (31).

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