CN212517095U - Locking device and circuit breaker - Google Patents
Locking device and circuit breaker Download PDFInfo
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- CN212517095U CN212517095U CN202021713808.1U CN202021713808U CN212517095U CN 212517095 U CN212517095 U CN 212517095U CN 202021713808 U CN202021713808 U CN 202021713808U CN 212517095 U CN212517095 U CN 212517095U
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- locking
- circuit breaker
- pull rod
- locking device
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Abstract
The utility model discloses a locking device and circuit breaker, this locking device includes the casing and sets up the locking subassembly in the casing, the locking subassembly is including setting up the portion of holding in the casing, accomodate the locking piece in the portion of holding and rotate the jump pin that sets up in the casing, the portion of holding includes opening and clamping part, the locking piece includes tip and the pull rod that is connected, the tip is equipped with the through-hole, the locking piece makes under the exogenic action the through-hole is distinguished in the opening to pass an article and make the jump pin be in the first position of locking, the locking piece makes under the exogenic action the pull rod support the clamping part makes the jump pin be in the second position that removes the restriction, this circuit breaker, including electric manipulation module, circuit breaker module and locking device, jump pin connection the electric manipulation module with the circuit breaker module, the locking device and the circuit breaker effectively improve the reliability and safety of the equipment maintenance process.
Description
Technical Field
The utility model relates to a power equipment technical field, more specifically say, relate to a locking device and circuit breaker.
Background
In the prior art, a remote control circuit breaker usually adopts a remote control mode to realize the opening and closing processes of the circuit breaker. When the circuit is overhauled, the circuit breaker needs to be always kept at the opening position, so the remote control circuit breaker needs to be provided with a self-locking device, for example, Chinese patent CN210692391U discloses a circuit breaker with a device for preventing false closing, the structure of a locking piece is utilized to carry out buckling so as to prevent false closing, but the function can not ensure 100% of the device for preventing false closing.
Therefore, how to further prevent the remote control breaker from performing false switching-on operation in an opening state in some occasions and improve the equipment maintenance safety is a technical problem that needs to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a locking device and circuit breaker have improved reliability and security of overhaul of the equipments process effectively.
The specific scheme is as follows:
a locking device comprises a shell and a locking assembly arranged in the shell, wherein the locking assembly comprises an accommodating part arranged in the shell, a locking part accommodated in the accommodating part and a tripping needle rotatably arranged in the shell, the accommodating part comprises an opening part and a clamping part, the locking part comprises a connected end part and a pull rod, the end part is provided with a through hole, the locking part enables the through hole to be convex to the opening part under the action of external force and enables the tripping needle to be located at a locked first position by enabling an object to pass through the through hole, and the locking part enables the pull rod to abut against the clamping part to enable the tripping needle to be located at a second position for removing limitation under the action of the external force.
The locking piece is arranged at the first position, and the bottom edge of the through groove props against the jump buckling pin.
The pull rod is U-shaped or L-shaped.
The pull rod is provided with a limiting part.
The side wall of the accommodating part is provided with a limit groove for adapting to the limit part.
The end part is provided with a boss in the direction vertical to the pull rod.
The end part is provided with a tooth part in the direction vertical to the pull rod.
The end parts are respectively provided with a boss and a tooth part in the direction perpendicular to the pull rod, and the boss and the tooth part are oppositely arranged on two sides.
The locking piece is of an integrated structure.
A circuit breaker comprises an electric operation module, a circuit breaker module and a locking device, wherein a tripping pin is connected with the electric operation module and the circuit breaker module.
The accommodating portion is provided in an electric manipulation housing of the electric manipulation module.
The receiving portion is provided in a circuit breaker case of the circuit breaker module.
The utility model provides a locking device and circuit breaker, through setting up the locking subassembly, when the circuit overhauls, end the locking piece at first predetermined position, the locking piece offsets with the jump buckle needle this moment, and the jump buckle needle is restricted in the separating brake state because of can not being rotated by external force, especially through the cooperation of article and passing through, makes the jump buckle needle avoid being operated by the people's maloperation, makes the circuit overhaul go on under the safe condition; after the maintenance is finished, the locking piece is manually reset to be stopped at the second position, and the circuit breaker can be normally controlled to perform switching-on and switching-off operation. Therefore, the circuit breaker with the anti-misoperation closing device provided by the application adopts the manual drawing and pressing mode to realize the anti-closing operation, and is simple in structure, convenient to operate and firm in locking.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a circuit breaker module when the circuit breaker with an anti-false switching device provided by the present invention is in a switching-off state;
fig. 2 is a schematic structural diagram of a circuit breaker module when the circuit breaker with the device for preventing false switching-on is in a switching-on state;
fig. 3 is a schematic structural diagram of a locking member in the circuit breaker with a device for preventing false closing according to the present invention;
FIG. 4 is a side elevational view of the circuit breaker in a first position with the latch of FIG. 3 assembled thereto;
FIG. 5 is another side schematic view of the circuit breaker in a first position with the locking member of FIG. 3 assembled;
FIG. 6 is a schematic view of the circuit breaker in a second position with the latch of FIG. 3 assembled;
fig. 7 is a second structural schematic diagram of a locking member in the circuit breaker with the device for preventing false closing according to the present invention;
fig. 8 is a schematic view of the circuit breaker in a first position with the latch of fig. 7 assembled.
The circuit breaker comprises a 1-electric operating module, a 11-electric operating shell, a 111-boss, a 12-swing arm, a 121-jump pin, a 13-limit hole, a 2-breaker module, a 21-handle, a 22-U-shaped rod, a 23-jump buckle, a 24-lock catch, a 241-trigger hole, a 25-moving contact, a 26-static contact, a 3-locking piece, a 31-end part, a 311-boss, a 312-through hole, a 313-tooth part, a 32-pull rod, a 321-through groove, a 322-bottom edge, a 323-limit part, a 4-accommodating part, a 41-opening part, a 42-clamping part and a 43-limit groove.
Detailed Description
The utility model provides a locking device and circuit breaker have improved the reliability and the security of overhaul of the equipments process effectively.
In order to make the technical field of the invention better understand, the following detailed description of the invention is provided with reference to the accompanying drawings and the specific embodiments.
The utility model provides a locking device's circuit breaker, including electrical operation module 1, circuit breaker module 2 and locking device, jump the knot needle 121 and connect electrical operation module 1 with circuit breaker module 2 to realize the linkage of the two.
The electric operation module 1 comprises an electric operation shell 11, a swing arm 12 and a limit hole 13, wherein the swing arm 12 is installed on a boss 111 of the electric operation shell 11 and rotates in the range of the limit hole 13. The circuit breaker module 2 comprises a circuit breaker shell, a handle 21, a U-shaped rod 22, a trip buckle 23 and a lock catch 24, wherein the handle 21, the U-shaped rod 22, the trip buckle 23 and the lock catch 24 are installed on the circuit breaker shell and are sequentially connected in a rotating mode. Trigger hole 241 on hasp 24 is connected with swing arm 12 through jump pintle 121 to constitute link structure, realize the linkage of circuit breaker module 2 and swing arm 12 the utility model discloses in use circuit breaker handle 21 direction as the top.
The locking device comprises a shell and a locking assembly arranged in the shell, wherein the locking assembly comprises an accommodating part 4 arranged in the shell, a locking part 3 accommodated in the accommodating part 4 and a trip pin 121 rotatably arranged in the shell, the accommodating part 4 comprises an opening part 41 and a clamping part 42, the locking part 3 comprises an end part 31 and a pull rod 32 which are connected, the end part 31 is provided with a through hole 312, the locking part 3 enables the through hole 312 to protrude from the opening part 41 under the action of external force and enables an object to pass through the through hole 312 to enable the trip pin 121 to be in a locked first position, and the locking part 3 enables the pull rod 32 to abut against the clamping part 42 under the action of external force to enable the trip pin 121 to be in a second position for releasing limitation.
In order to guarantee the effect, the preferred padlock of article, so can the special messenger special key management, can avoid other personnel to carry out the closing operation to the circuit breaker under the condition of not knowing.
The accommodating portion 4 is disposed in the electrical operation housing of the electrical operation module 1 or the circuit breaker housing of the circuit breaker module 2, and can be disposed according to the requirement of the circuit breaker.
During remote control closing operation, the remote control circuit breaker receives closing signals, drives the electrical operation module 1 through the circuit breaker module 2 and carries out closing action, specifically, handle 21 on the circuit breaker module 2 rotates to the left, drives the motion of U type pole 22, and U type pole 22 drives jump 23 and rotates, and jump 23 drives hasp 24 and rotates, and hasp 24 drives moving contact 25 and rotates for moving contact 25 and static contact 26 are closed. In addition, a circular trigger hole 241 is formed in the latch 24 for inserting the trip pin 121, and a limiting hole 13 for avoiding the trip pin 121 is formed in the electric operating housing 11, so that the swing arm 12 is mounted on the boss 111 of the electric operating housing 11, and the latch 24 is connected with the swing arm 12 through the trip pin 121, so that the latch 24 rotates and drives the swing arm 12 to rotate.
A first position: the locking piece 3 is pulled to the first position and fixed, namely, the locking piece 3 abuts against the tripping pin 121, and meanwhile, the padlock penetrates through the through hole 312, so that the tripping pin 121 is limited to be in a switching-off state, and the tripping pin 121 is limited in action, so that the action of the trigger hole 241 of the circuit breaker module 2 connected with the swing arm 12 through the tripping pin 121 is limited in the same action, the latch 24 is in an unlocking state at the moment, the circuit breaker module 2 cannot realize switching-on, therefore, even if the remote control breaker receives a switching-on signal, effective switching-on operation cannot be carried out, and the safety of line maintenance is ensured.
A second position: and taking out the padlock, pulling the locking piece 3 to a second position and fixing the locking piece, namely, removing the state of the locking piece 3 abutting against the tripping pin 121, converting the state into the matching of the locking piece 3 and the clamping part 42, at the moment, removing the limitation on the tripping pin 121 by the locking piece 3, enabling the tripping pin 121 to move back and forth along with the switching-on and switching-off of the breaker module 2, enabling the swing arm 12 to move back and forth in the limiting hole 13, and when the remote control breaker receives a switching-on signal, driving the breaker module 2 to perform switching-on action by the electric operation module 1.
The pull rod 32 is preferably U-shaped, the opening of the U-shaped is connected with the end 31 to form a closed through groove 321, the pull rod 32 is preferably L-shaped, the opening of the upper end of the L-shaped is connected with the end 31, the L-shaped pull rod 32, the end 31 and the side of the shell form a relatively closed through groove 321, the specific structure of the pull rod 32 includes but is not limited to the scheme provided in the utility model, which should be set according to the actual requirement, and the text is not limited. The jump buckle pin 121 penetrates through the through groove 321 and moves in the through groove 321, and the bottom edge 322 of the through groove 321 can abut against the jump buckle pin 121 in the first position state and is matched with the side edge of the shell, so that the jump buckle pin 121 is limited up and down.
Be equipped with convex spacing portion 323 on the pull rod 32, this spacing portion 323 is equivalent to interference fit with the cooperation of the 4 inner walls of holding portion, and is further be equipped with on the 4 lateral walls of holding portion for the adaptation spacing groove 43 of spacing portion 323, the two constitutes the inlay card cooperation, no matter be interference fit or inlay card cooperation, can prevent locking piece 3 and move slightly at holding portion 4 when receiving slight external force, guarantee the safe and reliable that the circuit breaker used.
The end portion 31 is provided with a boss 311 and/or a tooth portion 313 in a direction perpendicular to the pull rod 32, when the boss 311 and the tooth portion 313 are simultaneously arranged, the boss 311 is oppositely arranged at two sides of the end portion 31, the boss 311 can be used as a limit position for downward displacement of the locking member 3 and can also be used as a force bearing portion when the locking member 3 is taken out of the circuit breaker, and the tooth portion 313 is used as a force bearing portion when the locking member 3 is taken out of the circuit breaker.
The locking piece 3 is of an integrated structure, is a non-metal piece, and has elasticity, so that the strength of the locking piece 3 is improved, and the service life of the locking piece 3 is prolonged.
According to the above, the utility model provides a circuit breaker of combined floodgate device is prevented in area on remote signal control basis among the prior art, further provides manual mechanical control mode, has avoided the maloperation under the circumstances such as circuit maintenance effectively.
When the electric operation is switched off, the swing arm 12 rotates, the swing arm 12 acts on the trigger hole 241 through the trip pin 121, so that the lock catch 24 is driven to rotate and unlock, the moving contact 25 is driven to rotate and is separated and disconnected from the static contact 26, meanwhile, the lock catch 24 is unlocked to drive the trip catch 23 to rotate, the trip catch 23 drives the U-shaped rod 22 to swing, and the U-shaped rod 22 finally drives the handle 21 to rotate to realize switching off; during manual separating brake, because swing arm 12 is spacing in the separating brake position by locking piece 3, hasp 24 is in the unblock state always, and above-mentioned link mechanism is restricted in the separating brake state equally promptly, and so, long-range uncontrollable circuit breaker switching-on operation has promoted the maintenance security.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
It is right above the utility model provides a circuit breaker of closing device has been prevented mistake in area has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A locking device comprising a housing and a locking assembly disposed within the housing,
the locking assembly comprises an accommodating part (4) arranged in the shell, a locking piece (3) accommodated in the accommodating part (4) and a tripping pin (121) rotatably arranged in the shell,
the housing part (4) comprises an opening part (41) and a clamping part (42),
the locking piece (3) comprises an end part (31) and a pull rod (32) which are connected, the end part (31) is provided with a through hole (312),
the locking piece (3) enables the through hole (312) to be protruded to the opening part (41) under the action of external force, and an object passes through the through hole (312) to enable the tripping pin (121) to be in a locked first position,
the locking member (3) causes the pull rod (32) to abut against the locking part (42) under the action of external force, so that the tripping pin (121) is in a second position for releasing the limitation.
2. Locking device according to claim 1, characterized in that a through slot (321) is provided on said pull rod (32), said jumper pin (121) passes through said through slot (321) and is movable in said through slot (321), and when said locking element (3) is in the first position, a bottom edge (322) of said through slot (321) abuts against said jumper pin (121).
3. Locking device according to claim 1, characterized in that the tie rod (32) is U-shaped or L-shaped.
4. Locking device according to claim 1, characterized in that the pull rod (32) is provided with a stop (323).
5. A locking arrangement as claimed in claim 4, characterised in that the side walls of the receiving portion (4) are provided with a stop groove (43) for adapting the stop portion (323).
6. A locking arrangement as claimed in any one of claims 1 to 5, characterised in that the end portion (31) is provided with a boss (311) in a direction perpendicular to the pull rod (32).
7. Locking device according to any of claims 1-5, characterized in that the end (31) is provided with a toothing (313) in a direction perpendicular to the pull rod (32).
8. Locking device according to one of claims 1 to 5, characterized in that the end (31) is provided with a boss (311) and a tooth (313), respectively, in a direction perpendicular to the pull rod (32), the boss (311) and the tooth (313) being arranged opposite on both sides.
9. A locking arrangement as claimed in claim 1, characterised in that the locking element (3) is of one-piece construction.
10. A circuit breaker, characterized in that it comprises an electric operator module (1), a circuit breaker module (2) and a locking device according to any one of claims 1 to 9, said jumper pin (121) connecting said electric operator module (1) with said circuit breaker module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021713808.1U CN212517095U (en) | 2020-08-17 | 2020-08-17 | Locking device and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021713808.1U CN212517095U (en) | 2020-08-17 | 2020-08-17 | Locking device and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212517095U true CN212517095U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021713808.1U Active CN212517095U (en) | 2020-08-17 | 2020-08-17 | Locking device and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212517095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446730A (en) * | 2022-01-24 | 2022-05-06 | 宏秀电气有限公司 | Automatic reclosing device |
| CN117558593A (en) * | 2024-01-10 | 2024-02-13 | 深圳曼顿科技有限公司 | Locking structure of circuit breaker electric operation device and circuit breaker electric operation device |
-
2020
- 2020-08-17 CN CN202021713808.1U patent/CN212517095U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446730A (en) * | 2022-01-24 | 2022-05-06 | 宏秀电气有限公司 | Automatic reclosing device |
| CN114446730B (en) * | 2022-01-24 | 2024-10-11 | 宏秀电气有限公司 | Automatic reclosing device |
| CN117558593A (en) * | 2024-01-10 | 2024-02-13 | 深圳曼顿科技有限公司 | Locking structure of circuit breaker electric operation device and circuit breaker electric operation device |
| CN117558593B (en) * | 2024-01-10 | 2024-03-15 | 深圳曼顿科技有限公司 | Locking structure of circuit breaker electric operation device and circuit breaker electric operation device |
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