CN117558593B - Locking structure of circuit breaker electric operation device and circuit breaker electric operation device - Google Patents
Locking structure of circuit breaker electric operation device and circuit breaker electric operation device Download PDFInfo
- Publication number
- CN117558593B CN117558593B CN202410033798.3A CN202410033798A CN117558593B CN 117558593 B CN117558593 B CN 117558593B CN 202410033798 A CN202410033798 A CN 202410033798A CN 117558593 B CN117558593 B CN 117558593B
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- Prior art keywords
- locking
- rotating
- handle
- circuit breaker
- piece
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- 238000001514 detection method Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 7
- 206010014357 Electric shock Diseases 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
Landscapes
- Breakers (AREA)
Abstract
The invention discloses a locking structure of an electric operating device of a circuit breaker and the electric operating device of the circuit breaker, wherein the locking structure of the electric operating device of the circuit breaker comprises a handle operating assembly, a handle piece and an electric driving piece, wherein the handle operating assembly is arranged on a shell and comprises a handle piece and an electric driving piece which is in driving connection with the handle piece; the locking piece is rotatably arranged in the shell and comprises a second handle part, a second rotating part eccentrically rotating relative to the first rotating part and a positioning part connecting the second rotating part and the second handle part, and the positioning part is matched with the positioning protrusion in a positioning way; the locking member is located at the first rotational position when the handle operating assembly is in the electric state, and is located at the second rotational position or the third rotational position when the handle operating assembly is in the manual state. The technical scheme of the invention ensures the safety of circuit maintenance operation.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a locking structure of an electric operating device of a circuit breaker and the electric operating device of the circuit breaker.
Background
In order to meet the requirement of opening and closing of a remote control circuit, a circuit breaker operating device with remote control and electric operation of opening and closing of a circuit breaker is required to be used, if an electrician needs to overhaul a circuit for a power distribution cabinet provided with the circuit breaker operating device, the circuit breaker operating device needs to be locked when the circuit breaker operating device is opened by setting a locking structure, so that the circuit breaker operating device is locked at an opening position, and the circuit breaker operating device plays a role in protecting the electrician overhaul circuit.
However, the existing locking structure for the electric operating device of the circuit breaker is generally a push-pull sliding locking structure, and when a circuit is overhauled, the locking structure needs to be pushed out of the padlock, so that a protection panel of the power distribution cabinet needs to be detached, the circuit breaker is very inconvenient, and the risk of electric shock is increased.
Disclosure of Invention
The invention mainly aims to provide a locking structure of an electric operating device of a circuit breaker, which aims to ensure the safety of circuit maintenance operation and avoid the risk of electric shock.
In order to achieve the above object, the invention provides a locking structure of an electric operating device of a circuit breaker, comprising a handle operating assembly, a locking device and a locking device, wherein the handle operating assembly is arranged on a shell and comprises a handle piece and an electric driving piece in driving connection with the handle piece;
the locking piece is rotatably arranged in the shell and comprises a second handle part, a second rotating part eccentrically rotating relative to the first rotating part and a positioning part connecting the second rotating part and the second handle part, and the positioning part is matched with the positioning protrusion in a positioning way;
when the handle operation assembly is in an electric state, the locking piece is located at a first rotating position, when the handle operation assembly is in a manual state, the locking piece is located at a second rotating position or a third rotating position, when the locking piece is located at the first rotating position or the second rotating position, the positioning protrusion can rotate from the initial end of the positioning portion to the tail end of the positioning portion and is used for enabling the handle piece to be located at a brake-separating position or a brake-closing position, and when the locking piece is located at the third rotating position, the positioning protrusion is abutted with the end of the positioning portion and is used for enabling the handle piece to be locked at the brake-separating position.
Preferably, the electric driving piece comprises a driving motor and a reduction gear set, wherein the driving motor is in driving connection with the first rotating part through the reduction gear set and is used for driving the handle piece to rotate to a brake-opening or brake-closing position.
Preferably, the electric power device further comprises a detection switch arranged in the shell, wherein the detection switch is used for controlling the power-on or power-off of the electric driving piece, so that the handle operation assembly is in an electric state or a manual state, when the locking piece is in a first rotating position, the detection switch is pressed down by the locking piece, so that the electric driving piece is powered on, and when the locking piece is in a second rotating position or a third rotating position, the detection switch is sprung up, so that the electric driving piece is powered off.
Preferably, a rotary groove is formed in the first rotary part, a transmission gear coaxially and synchronously rotating with the first rotary part is arranged in the rotary groove, and a through hole for enabling the transmission gear to be exposed out and meshed with the reduction gear set for transmission is formed in the first rotary part in a radial penetrating mode.
Preferably, the positioning part is provided with a yielding rotary groove for accommodating the positioning protrusion, when the locking piece is in a first rotation position or a second rotation position, the positioning protrusion can rotate along with the handle piece, and the starting end of the yielding rotary groove rotates to the tail end of the yielding rotary groove, so that the handle piece is in a brake-separating or brake-closing position, and when the locking piece is in a third rotation position, the positioning protrusion is abutted with the notch end of the yielding rotary groove, so that the handle piece is in a brake-separating position.
Preferably, the locking piece further comprises a locking part arranged on the periphery of the second rotating part, the locking part is provided with a lock hole, the locking part is positioned in the shell when the locking piece is positioned at the first rotating position or the second rotating position, and the locking part is positioned outside the shell when the locking piece is positioned at the third rotating position, so that the lock hole is exposed.
Preferably, the locking device further comprises a clamping strip arranged in the shell, a first clamping groove position and a second clamping groove position are formed in one end of the clamping strip, a third clamping groove position is formed in the other end of the clamping strip, the locking part extends to form a clamping part, a clamping protrusion is arranged at the tail end of the clamping part, when the locking piece is located at a first rotating position, the clamping protrusion is clamped with the first clamping groove position, when the locking piece is located at a second rotating position, the clamping protrusion is clamped with the second clamping groove position, and when the locking piece is located at a third rotating position, the clamping protrusion is clamped with the third clamping groove position.
Preferably, the first rotating part is provided with a through hole along the axial direction of the first rotating part and is rotatably provided with an eccentric column, two ends of the eccentric column are respectively fixed on the inner wall of the shell, the second rotating part is provided with a rotating groove along the axial direction of the second rotating part, and the eccentric column eccentrically rotates in the rotating groove.
Preferably, the inner wall of the shell is fixedly provided with a rotary column, the free end of the rotary column is provided with an eccentric hole, the rotary groove is rotationally connected with the rotary column, and the eccentric column is fixedly connected with the eccentric hole.
The invention also provides an electric operating device of the circuit breaker, which comprises a shell and a locking structure of the electric operating device of the circuit breaker, wherein the locking structure of the electric operating device of the circuit breaker is arranged in the shell.
According to the technical scheme, the locking piece is arranged in the shell, so that the locking piece and the handle piece in the shell eccentrically rotate, meanwhile, the locating protrusion is arranged on one surface of the handle piece, facing the locking piece, and through eccentric rotation of the locking piece, the detection switch is pressed down, the locking piece is positioned at a first rotation position, and the handle piece can freely rotate between a closing position and a separating position; when the handle operation assembly is in the manual state, the detection switch is sprung, the locking piece is in the second rotation position, the positioning part of the locking piece cannot interfere with the positioning protrusion, the handle piece can freely rotate from the circuit breaking position to the access position, when the handle operation assembly is in the third rotation position, the positioning part interferes with the positioning protrusion, the handle piece is deflected and limited, the handle piece cannot rotate, and therefore the locking of the circuit breaker operation handle is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an embodiment of a locking structure of an electrically operated device of a circuit breaker according to the present invention.
Fig. 2 is an exploded view of the locking structure of the circuit breaker electric operating apparatus of the present invention.
Fig. 3 is a schematic view showing the installation of the handle member and the locking member of the locking structure of the circuit breaker electric operating device of the present invention.
Fig. 4 is a schematic structural view of a handle member and a locking member of the locking structure of the circuit breaker electric operating apparatus of the present invention.
Fig. 5 is a schematic structural view of a handle member of a locking structure of an electric operating device of a circuit breaker according to the present invention.
Fig. 6 is a schematic view of the closing of the handle member when the locking member of the present invention is in the first rotational position.
FIG. 7 is a schematic view of the handle member opening when the locking member of the present invention is in the first rotational position.
Fig. 8 is a schematic view of the closing of the handle member when the locking member of the present invention is in the second rotational position.
FIG. 9 is a schematic view of the handle member opening when the locking member of the present invention is in a third rotational position.
Fig. 10 is a schematic structural view of a locking structure of the circuit breaker electric operating device according to the present invention.
Fig. 11 is a schematic structural view of an electric driving member of a locking structure of an electric operating device of a circuit breaker according to the present invention.
Reference numerals illustrate:
10. a housing; 11. a first half-shell; 12. a second half-shell; 13. a rotating column; 131. an eccentric hole; 14. clamping strips; 141. the first clamping groove position; 142. the second clamping groove position; 143. a third clamping groove position; 20. a handle member; 21. a first handle portion; 22. a first rotating part; 23. positioning the bulge; 24. a rotary groove; 25. an eccentric column; 26. a transmission gear; 30. a locking member; 31. a second handle portion; 32. a second rotating part; 33. a rotating groove; 34. a positioning part; 35. giving way to rotate the groove; 36. a locking part; 37. a lock hole; 38. a clamping part; 39. a clamping protrusion; 40. an electric drive; 41. a driving motor; 42. a reduction gear set; 43. a detection switch; 44. a handle state detection switch.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
With the advent of Internet of things, the home and industrial circuit breakers are more and more intelligent, and can remotely control and visualize data. In order to meet the opening and closing of a remote control circuit, a circuit breaker operating device with remote control and electric operation of the circuit breaker opening and closing is required to be used, if an electrician needs to overhaul a circuit for a power distribution cabinet provided with the circuit breaker operating device, the circuit breaker operating device is required to be locked when the circuit breaker operating device is required to be provided with a locking structure to break the circuit breaker, the circuit breaker operating device is locked at a breaking position, the circuit breaker cannot be closed and powered, and the protection effect is achieved for the electrician overhaul circuit. Meanwhile, other unknowing personnel are mainly prevented from closing and transmitting power, and the electrician is injured.
The existing locking structure for the circuit breaker electric operation device is generally a push-pull sliding locking structure, and when a circuit is overhauled, the locking structure needs to be pushed out of a padlock, so that a protection panel of a power distribution cabinet needs to be detached, the circuit breaker electric operation device is very inconvenient, and the risk of electric shock is increased.
Therefore, the invention provides a locking structure of an electric operating device of a circuit breaker, which aims to ensure the safety of circuit maintenance operation and avoid the risk of electric shock.
Referring to fig. 1 to 11, fig. 1 is a schematic structural view of an embodiment of a locking structure of an electrically operated device of a circuit breaker according to the present invention; fig. 2 is an exploded view of the locking structure of the circuit breaker electric operating apparatus of the present invention; fig. 3 is a schematic view showing the installation of a handle member and a locking member of the locking structure of the circuit breaker electric operating apparatus of the present invention; fig. 4 is a schematic structural view of a handle member and a locking member of the locking structure of the electric operating device of the circuit breaker according to the present invention; fig. 5 is a schematic structural view of a handle member of a locking structure of an electric operating device of a circuit breaker according to the present invention; FIG. 6 is a schematic view of the closing of the handle member when the locking member of the present invention is in the first rotational position; FIG. 7 is a schematic view of the handle member opening when the locking member of the present invention is in a first rotational position; FIG. 8 is a schematic view of the closing of the handle member when the locking member of the present invention is in the second rotational position; FIG. 9 is a schematic view of the handle member opening when the locking member of the present invention is in a third rotational position; fig. 10 is a schematic structural view of a locking structure of the circuit breaker electric operating device according to the present invention; fig. 11 is a schematic structural view of an electric driving member of a locking structure of an electric operating device of a circuit breaker according to the present invention.
In an embodiment of the present invention, the circuit breaker electrically operated device locking structure includes a handle operating assembly and a locking member 30; as shown in fig. 1 to 11, a handle operation assembly is mounted on a housing 10, the handle operation assembly comprises a handle member 20 and an electric driving member 40 connected with the handle member 20 in a driving manner, the handle member 20 is rotatably mounted in the housing 10, the handle member 20 comprises a first handle portion 21 and a first rotating portion 22 connected with the first handle portion 21, a positioning protrusion 23 is arranged on the first rotating portion 22, and the handle operation assembly has an electric state and a manual state; the locking member 30 is rotatably mounted in the housing 10 and is disposed adjacent to the handle member 20, the locking member 30 includes a second handle portion 31, a second rotating portion 32 eccentrically rotating relative to the first rotating portion 22, and a positioning portion 34 connecting the second rotating portion 32 and the second handle portion 31, the positioning portion 34 being positioned and matched with the positioning protrusion 23, the locking member 30 being located at a first rotating position when the handle operating assembly is in an electric state, the locking member 30 being located at a second rotating position or a third rotating position when the handle operating assembly is in a manual state, the positioning protrusion 23 being rotatable with the handle member 20 from a start end of the positioning portion 34 to an end of the positioning portion 34 when the locking member 30 is in the first rotating position or the second rotating position for causing the handle member 20 to be in a switching-off or switching-on position, and the positioning protrusion 23 being abutted with an end of the positioning portion 34 for causing the handle member 20 to be locked at the switching-off position when the locking member 30 is in the third rotating position.
In this embodiment, the housing 10 includes a first half housing 11 and a second half housing 12, in which the first half housing 11 and the second half housing 12 mount the circuit breaker body in a spliced manner, the handle member 20 is an operation handle for operating the circuit breaker body to open and close, the handle member 20 is disposed adjacent to the locking member 30, and the locking member 30 eccentrically rotates with respect to the handle member 20.
When the handle operating assembly is in the electric state, the locking member 30 is in the first rotating position, the handle member 20 can be freely rotated between the open circuit position and the access position by the electric driving manner, and the positioning protrusion 23 of the handle member 20 does not interfere with the positioning portion 34 of the locking member 30.
And the locking member 30 may be in the second rotational position or the third rotational position when the handle operating assembly is in the manual state. When the locking member 30 is in the second rotational position, the handle member 20 is manually rotatable between the open circuit position and the closed circuit position, and the positioning protrusion 23 of the handle member 20 does not interfere with the positioning portion 34 of the locking member 30; when the locking member 30 is at the third rotation position, the locking member 30 rotates from the second rotation position to the third rotation position, and eccentrically rotates relative to the handle member 20, the positioning portion 34 is offset relative to the positioning protrusion 23, and when the handle member 20 rotates from the open circuit position to the closed circuit position, the positioning protrusion 23 interferes with the offset positioning protrusion 23, so that the handle member 20 cannot rotate to the closed circuit position and can only be at the open circuit position.
According to the technical scheme of the invention, the locking piece 30 is arranged in the shell 10, so that the locking piece 30 and the handle piece 20 in the shell 10 eccentrically rotate, meanwhile, the positioning protrusion 23 is arranged on one surface of the handle piece 20 facing the locking piece 30, when the handle operation assembly is in a manual state, the locking piece 30 cannot interfere with the positioning protrusion 23 when in the second rotation position, the handle piece 20 can freely rotate from the open circuit position to the access position, when the locking piece 30 is in the third rotation position, the positioning part 34 is eccentric relative to the handle piece 20, and when the handle piece 20 rotates from the open circuit position to the access position, the positioning part 34 interferes with the positioning protrusion 23, so that the handle piece 20 cannot rotate to the access state, and therefore, the locking of the operating handle of the circuit breaker is realized under the manual state of the handle operation assembly, when circuit maintenance is required, the locking can be realized without dismantling a panel of the circuit breaker, the safety of the circuit maintenance operation is ensured, and the electric shock risk is avoided.
Further, referring to fig. 11 in combination, the electric driving member 40 includes a driving motor 41, and a reduction gear set 42, and the driving motor 41 is drivingly connected to the first rotating portion 22 through the reduction gear set 42, for driving the handle member 20 to rotate to the opening or closing position.
Further, the electric driving member 40 further includes a handle state detecting switch 44, and the handle state detecting switch 44 is used for detecting the position and the opening and closing state of the handle member 20. When the handle state detection switch 44 is depressed, the position of the handle member 20 can be determined.
In this embodiment, the reduction gear set 42 includes a plurality of gear members meshed in turn, and a worm structure disposed on an output shaft of the driving motor 41, and a turbine structure connecting the worm structure and the gear members, the driving motor 41 may employ a servo motor, so that the size of the electric driving member 40 may be reduced, product refinement and miniaturization may be achieved, and the first rotating portion 22 connected to the reduction gear set 42 is driven to rotate in a reduced speed by driving of the driving motor 41, thereby driving the handle member 20 to perform an electric control operation, and a circuit breaking and a passage operation of the circuit breaker may be implemented.
Further, the electric power tool further comprises a detection switch 43 arranged in the casing 10, and referring to fig. 3, the detection switch 43 is used for controlling the power on or off of the electric driving member 40, so that the handle operation assembly is in an electric state or a manual state, when the locking member 30 is in the first rotation position, the detection switch 43 is pressed down by the locking member 30, so that the electric driving member 40 is electrified, and when the locking member 30 is in the second rotation position or the third rotation position, the detection switch 43 is sprung, so that the electric driving member 40 is powered off. In this embodiment, the detection switch 43 is used as a master switch of the electric drive circuit of the electric driving member 40, and when the detection switch 43 is pressed down, the electric drive circuit of the electric driving member 40 is energized, so that the electric and remote operation of the handle member 20 can be realized to switch on or switch off. When the lock member 30 is rotated to the second rotational position, the detection switch 43 is turned off, and the drive circuit is turned off, so that the electric and remote switching operation is disabled, and the switching operation can be performed only manually, and the handle member 20 is in a free rotational state. When the handle member 20 is in the opening state, the locking member 30 is rotated to the third rotation position, and at this time, the handle member 20 is locked, and the driving circuit is also in the opening state, so that the opening and closing operation cannot be electrically and remotely operated.
Preferably, a rotary groove 24 is formed in the first rotary part 22, a transmission gear 26 coaxially and synchronously rotating with the first rotary part 22 is arranged in the rotary groove 24, and as shown in fig. 4 and 5, a through hole for exposing the transmission gear 26 to engage with and drive the reduction gear set 42 is radially formed in the first rotary part 22. In this embodiment, the transmission gear 26 is meshed with a gear member at the transmission end of the reduction gear set 42, and when the driving motor 41 works, the driving motor is transmitted to the transmission gear 26 through the reduction gear set 42 to drive the first rotating portion 22 to rotate.
Further, the positioning portion 34 is provided with a yielding groove 35 for accommodating the positioning protrusion 23, and as shown in fig. 4, 6, 7, 8 and 9, when the locking member 30 is in the first rotation position or the second rotation position, the positioning protrusion 23 can rotate with the handle member 20, and the starting end of the yielding groove 35 rotates into the yielding groove 35 to enable the handle member 20 to be in the opening or closing position, and when the locking member 30 is in the third rotation position, the positioning protrusion 23 abuts against the notch end of the yielding groove 35 to enable the handle member 20 to be in the opening position.
In this embodiment, the positioning portion 34 is provided with the yielding groove 35, the position of the yielding groove 35 facing the positioning protrusion 23 is provided with an opening, when the locking member 30 is in the first rotation position and the second rotation position, the positioning protrusion 23 can rotate into the yielding groove 35 when the handle member 20 rotates, so that interference with the positioning portion 34 cannot occur, when the locking member 30 is in the third rotation position, the yielding groove 35 and the rotation axis of the handle member 20 are eccentrically arranged, and when the handle member 20 rotates, the positioning protrusion 23 can interfere with the port of the yielding groove 35 when rotating to the port of the yielding groove 35, so that the handle member 20 cannot rotate from the breaking position to the access position.
Further, the locking member 30 further includes a locking portion 36 disposed at an outer periphery of the second rotating portion 32, as shown in fig. 4, 6, 7, and 8, the locking portion 36 is provided with a locking hole 37, and when the locking member 30 is in the first rotating position or the second rotating position, the locking portion 36 is located in the housing 10, and when the locking member 30 is in the third rotating position, as shown in fig. 9, the locking portion 36 is located outside the housing 10, so that the locking hole 37 is exposed. Specifically, when the locking member 30 is in the first rotational position or the second rotational position, the locking portion 36 is located in the housing 10, the lock hole 37 on the locking portion 36 is also contained in the housing 10, and cannot be used for locking the locking member 30 by a padlock, and when the locking member 30 is in the third rotational position, the locking portion 36 is located outside the housing 10, the lock hole 37 on the locking portion 36 is exposed, and the locking member 30 can be locked by hanging the lock hole 37, so that the locking member 30 in the third rotational position reinforces the rotational locking of the handle member 20.
Preferably, the locking device further comprises a clamping strip 14 arranged in the shell 10, and referring to fig. 10, one end of the clamping strip 14 is provided with a first clamping groove position 141 and a second clamping groove position 142, the other end of the clamping strip 14 is provided with a third clamping groove position 143, the locking part 36 extends to form a clamping part 38, the tail end of the clamping part 38 is provided with a clamping protrusion 39, when the locking piece 30 is in the first rotating position, the clamping protrusion 39 is clamped with the first clamping groove position 141, when the locking piece 30 is in the second rotating position, the clamping protrusion 39 is clamped with the second clamping groove position 142, and when the locking piece 30 is in the third rotating position, the clamping protrusion 39 is clamped with the third clamping groove position 143.
Specifically, when the locking member 30 is in the first rotation position, the locking protrusion 39 is locked with the first locking slot 141, when the locking member 30 is in the second rotation position, the locking protrusion 39 is locked with the second locking slot 142, so that the locking member 30 is effectively locked in the first locking slot 141 or the second locking slot 142 under the condition of not receiving larger external force deflection, thereby avoiding the natural deflection of the locking member 30, enabling the handle operation assembly to rotate from the brake position to the brake position under the electric state and the manual state, and when the locking member 30 is in the third rotation position, the locking protrusion 39 is locked with the third locking slot 143, so that the locking member 30 is effectively locked in the third locking slot 143 under the condition of not receiving larger external force deflection, and is matched with the padlock inserted into the lock hole 37, thereby effectively limiting the deflection of the locking member 30.
Preferably, the first rotating part 22 is provided with a through hole along the axial direction thereof and rotatably mounted with an eccentric column 25, and as shown in fig. 4 and 10, both ends of the eccentric column 25 are respectively fixed to the inner wall of the housing 10, and the second rotating part 32 is provided with a rotating groove 33 along the axial direction thereof, and the eccentric column 25 eccentrically rotates in the rotating groove 33. In the present embodiment, the handle member 20 is rotatable about the eccentric post 25, and the locking member 30 is rotated by the rotation groove 33, and the eccentric post 25 is eccentrically disposed in the rotation groove 33, thereby achieving eccentric rotation of the locking member 30 with respect to the handle member 20.
Preferably, the inner wall of the housing 10 is fixedly provided with a rotary column 13, the free end of the rotary column 13 is provided with an eccentric hole 131, and the rotary groove 33 is rotationally connected with the rotary column 13, and the eccentric column 25 is fixedly connected with the eccentric hole 131 as shown in the combined reference to fig. 10. Specifically, the arrangement of the rotation post 13 and the eccentric hole 131 at the end surface of the rotation post 13 allows the installation of the rotation groove 33 and the eccentric post 25 at the same time, thereby providing the handle member 20 and the locking member 30 with the installation structure in the housing 10.
Preferably, as shown in connection with fig. 3, the side of the second handle portion 31 remote from the second turning portion 32 is provided with cleats. Specifically, the grip force of the second handle portion 31 is increased by the stud provided on the end surface of the second handle portion 31 when the state of the lock 30 is adjusted by the rotation of the second handle portion 31.
The invention also provides an electric operating device of the circuit breaker, the circuit breaker comprises a shell 10 and a locking structure of the electric operating device of the circuit breaker, the specific structure of the locking structure of the electric operating device of the circuit breaker refers to the embodiment, and the circuit breaker adopts all the technical schemes of all the embodiments, so that the circuit breaker has at least all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated. Wherein the circuit breaker electrically operated device locking structure is mounted within the housing 10.
According to the technical scheme, the locking piece 30 is arranged in the shell 10, so that the locking piece 30 and the handle piece 20 in the shell 10 eccentrically rotate, meanwhile, the positioning protrusion 23 is arranged on one surface of the handle piece 20 facing the locking piece 30, and when the handle operation assembly is in a first rotating position under the electric state and the locking piece 30 is in the first rotating position, the detection switch 43 is pressed down, and the handle piece 20 can freely rotate between the closing and opening positions; when the handle operation assembly is in a manual state, the detection switch 43 is sprung, the positioning protrusion 23 can rotate into the yielding groove 35 when the locking piece 30 is in the second rotation position, the positioning part 34 of the locking piece 30 cannot interfere with the positioning protrusion 23, so that the handle piece 20 can freely rotate from the open circuit position to the access position, when the handle operation assembly is in the manual state and the locking piece 30 is in the third rotation position, the positioning part 34 is eccentric relative to the handle piece 20, the notch position of the yielding groove 35 is closer to the axle center of the first rotation part 22 than the positioning protrusion 23, and when the handle piece 20 rotates from the open circuit position to the access position, the positioning part 34 interferes with the positioning protrusion 23, so that the handle piece 20 cannot rotate to the access state, the locking of the operation handle of the circuit breaker is realized, the locking can be realized without dismantling a panel of the circuit breaker when the circuit maintenance is needed, the safety of the circuit maintenance operation is ensured, and the electric shock risk is avoided.
Meanwhile, the locking piece 30 is small in size, the structural space of the shell 10 is not occupied additionally, the electric driving piece 40 can be consistent with the size of the circuit breaker when the electric driving piece 40 is additionally arranged, and after the locking piece 30 is matched with the circuit breaker body, the whole body is coordinated, the consistency is good, and the product is attractive.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (9)
1. A circuit breaker electrically operated device locking structure, comprising:
the handle operation assembly is arranged on the shell and comprises a handle piece and an electric driving piece in driving connection with the handle piece, the handle piece comprises a first handle part and a first rotating part connected with the first handle part, a positioning protrusion is arranged on the first rotating part, and the handle operation assembly is in an electric state and a manual state;
the locking piece is rotatably arranged in the shell and comprises a second handle part, a second rotating part eccentrically rotating relative to the first rotating part and a positioning part connecting the second rotating part and the second handle part, and the positioning part is matched with the positioning protrusion in a positioning way;
when the handle operation assembly is in an electric state, the locking piece is located at a first rotating position, when the handle operation assembly is in a manual state, the locking piece is located at a second rotating position or a third rotating position, when the locking piece is located at the first rotating position or the second rotating position, the positioning protrusion can rotate from the initial end of the positioning part to the tail end of the positioning part and is used for enabling the handle piece to be located at a brake-separating position or a brake-closing position, and when the locking piece is located at the third rotating position, the positioning protrusion is abutted with the end of the positioning part and is used for enabling the handle piece to be locked at the brake-separating position;
the positioning part is provided with a yielding rotary groove for accommodating the positioning protrusion, when the locking piece is positioned at a first rotating position or a second rotating position, the positioning protrusion can rotate along with the handle piece, and the starting end of the yielding rotary groove rotates to the tail end of the yielding rotary groove, so that the handle piece is positioned at a brake separating or closing position, and when the locking piece is positioned at a third rotating position, the positioning protrusion is abutted with the notch end of the yielding rotary groove, so that the handle piece is positioned at a brake separating position.
2. The circuit breaker electrically operated device locking structure of claim 1 wherein said electrical drive member comprises a drive motor and a reduction gear set, said drive motor being drivingly connected to said first rotating portion through said reduction gear set for driving said handle member to rotate to an open or closed position.
3. The circuit breaker electrically operated device locking structure of claim 2 further comprising a detection switch disposed within the housing for controlling the energizing or de-energizing of said electrically driven member, said handle operating assembly being in an electrically powered or manual state, said detection switch being depressed by said locking member when said locking member is in the first rotational position, energizing said electrically driven member, said detection switch being sprung when said locking member is in the second rotational position or the third rotational position, de-energizing said electrically driven member.
4. The circuit breaker electrically operated device locking structure of claim 2, wherein a rotary groove is formed in the first rotary part, a transmission gear coaxially and synchronously rotating with the first rotary part is arranged in the rotary groove, and a through hole for exposing the transmission gear to engage and drive with the reduction gear set is formed in the first rotary part along the radial direction.
5. The circuit breaker electrically operated device locking structure of claim 1, wherein the locking member further comprises a locking portion provided at an outer periphery of the second rotating portion, the locking portion being provided with a locking hole, the locking portion being located in the housing when the locking member is in the first rotating position or the second rotating position, and the locking portion being located outside the housing when the locking member is in the third rotating position, for exposing the locking hole.
6. The circuit breaker electrically operated device locking structure of claim 5, further comprising a clamping bar disposed in the housing, wherein one end of the clamping bar is provided with a first clamping slot and a second clamping slot, the other end of the clamping bar is provided with a third clamping slot, the locking portion extends to form a locking portion, a clamping protrusion is disposed at the tail end of the locking portion, the clamping protrusion is clamped with the first clamping slot when the locking member is in the first rotating position, the clamping protrusion is clamped with the second clamping slot when the locking member is in the second rotating position, and the clamping protrusion is clamped with the third clamping slot when the locking member is in the third rotating position.
7. The circuit breaker electrically operated device locking structure of claim 1, wherein the first rotating part is provided with a through hole along an axial direction thereof and is rotatably provided with an eccentric column, both ends of the eccentric column are respectively fixed on an inner wall of the housing, the second rotating part is provided with a rotating groove along an axial direction thereof, and the eccentric column eccentrically rotates in the rotating groove.
8. The circuit breaker electrically operated device locking structure of claim 7 wherein a rotating post is fixedly arranged on the inner wall of the housing, an eccentric hole is formed in the free end of the rotating post, the rotating groove is rotationally connected with the rotating post, and the eccentric post is fixedly connected with the eccentric hole.
9. A circuit breaker electrically operated device comprising a housing and a circuit breaker electrically operated device locking structure as claimed in any one of claims 1 to 8, said circuit breaker electrically operated device locking structure being mounted within the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410033798.3A CN117558593B (en) | 2024-01-10 | 2024-01-10 | Locking structure of circuit breaker electric operation device and circuit breaker electric operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410033798.3A CN117558593B (en) | 2024-01-10 | 2024-01-10 | Locking structure of circuit breaker electric operation device and circuit breaker electric operation device |
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| Publication Number | Publication Date |
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| CN117558593A CN117558593A (en) | 2024-02-13 |
| CN117558593B true CN117558593B (en) | 2024-03-15 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117558593A (en) | 2024-02-13 |
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