CN113889374B - A closing interlocking mechanism for circuit breaker operating mechanism - Google Patents
A closing interlocking mechanism for circuit breaker operating mechanism Download PDFInfo
- Publication number
- CN113889374B CN113889374B CN202010621728.1A CN202010621728A CN113889374B CN 113889374 B CN113889374 B CN 113889374B CN 202010621728 A CN202010621728 A CN 202010621728A CN 113889374 B CN113889374 B CN 113889374B
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- Prior art keywords
- button
- closing
- circuit breaker
- operating mechanism
- plate
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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
- H01H71/1009—Interconnected mechanisms
-
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
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- Mechanisms For Operating Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
一种断路器操作机构合闸联锁机构，其特征在于：它包括安装底板(1)，驱动件(2)装在所述安装底板(1)上能够来回运动，复位弹性件(3)与所述驱动件(2)连接能够驱使所述驱动件(2)复位，所述驱动件(2)装在所述安装底板(1)上运动过程中能够推动一级转动板(4)转动，所述一级转动板(4)转动过程中能够推动所述二级连动杆(5)运动，所述二级连动杆(5)运动过程中能够驱动所述合闸半轴(6)转动。本断路器操作机构合闸联锁机构，通过多极联动传递，减少了操作时候需要的外力，增加了操作的舒适度，整个联锁机构对合闸半轴合闸前的状态进行锁定，避免误操作导致安全事故，合闸操作开始后能够自动复位不对合闸操作进行干涉。
A closing interlock mechanism of a circuit breaker operating mechanism, characterized in that it comprises a mounting base plate (1), a driving member (2) mounted on the mounting base plate (1) and capable of moving back and forth, a reset elastic member (3) connected to the driving member (2) and capable of driving the driving member (2) to reset, the driving member (2) mounted on the mounting base plate (1) and capable of driving a primary rotating plate (4) to rotate during movement, the primary rotating plate (4) being capable of driving a secondary linkage rod (5) to move during rotation, and the secondary linkage rod (5) being capable of driving a closing half-shaft (6) to rotate during movement. The closing interlock mechanism of the circuit breaker operating mechanism reduces the external force required during operation and increases the comfort of operation through multi-pole linkage transmission, the entire interlock mechanism locks the state of the closing half-shaft before closing to avoid safety accidents caused by misoperation, and can automatically reset after the closing operation begins without interfering with the closing operation.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a switching-on interlocking mechanism of a circuit breaker operating mechanism.
Background
The circuit breaker is an important part of a power distribution electrical appliance, and is mainly used for an industrial low-voltage power system, and is used for switching on and off current in a power grid circuit, protecting a circuit and power supply equipment from damage caused by faults such as overload, undervoltage, short circuit, single-phase grounding and the like.
The circuit breaker is classified into a high voltage circuit breaker and a low voltage circuit breaker according to its range of use. The low-voltage circuit breaker is also called an automatic switch, commonly called an air switch, and also refers to a low-voltage circuit breaker, and is an electric appliance which has the function of manual switching and can automatically perform voltage loss, undervoltage, overload and short-circuit protection. It can be used to distribute electric energy, not frequently start asynchronous motor, protect power supply circuit and motor, when they are in serious overload or short circuit and under-voltage, it can automatically cut off circuit, its function is equivalent to the combination of fuse switch and over-under-heating relay, etc. and after breaking fault current it generally does not need to change parts, so that it has been widely used.
The switch-on electromagnet of the switch-on executing structure of the circuit breaker in the market is fixed above the operating mechanism, a remote switch-on function can be provided for the circuit breaker, a cantilever is arranged on the switch-on lock catch of the operating mechanism, and the switch-on electromagnet iron core is positioned above the cantilever of the switch-on lock catch of the operating mechanism; when the remote switching-on is needed, the switching-on electromagnet iron core can be controlled to be switched off, and the switching-on lock catch of the operating mechanism is triggered, so that the cantilever on the switching-on semiaxle of the operating mechanism is pushed to rotate the semiaxle, and the mechanism is enabled to perform switching-on operation. When the circuit breaker is in the process of factory detection and customer installation and overhaul, an operating mechanism button needs to be manually pressed to realize the closing of the circuit breaker.
At present, when the button is manually pressed by the traditional circuit breaker, larger operation force is needed, the pressing experience is poor, and meanwhile, the button is easy to damage due to the large operation force.
Disclosure of Invention
The invention aims to overcome the technical defects of large operating force and easy damage of the button of the conventional breaker operating mechanism, and provides a breaker operating mechanism closing interlocking mechanism, wherein the operating force is reduced through the interlocking mechanism, meanwhile, the service life of a button part is prolonged through the reduction of the operating force, the motion transmission is more stable through the secondary motion transmission, and the switching-on operation can be automatically reset without interference on the switching-on operation after the starting of the switching-on operation.
Technical proposal
In order to achieve the technical purpose, the invention provides a switching-on interlocking mechanism of a breaker operating mechanism, which is characterized in that: the automatic switching-on device comprises a mounting bottom plate, wherein a driving piece is arranged on the mounting bottom plate and can move back and forth, a reset elastic piece is connected with the driving piece and can drive the driving piece to reset, the driving piece is arranged on the mounting bottom plate and can push a primary rotating plate to rotate in the moving process, a secondary linkage rod can be pushed to move in the rotating process of the primary rotating plate, and the secondary linkage rod can drive a switching-on half shaft to rotate in the moving process.
Preferably, the driving piece is a button, a sliding slot hole is formed in the button, one end of a button installation shaft is fixedly arranged on the installation base plate, the other end of the button installation shaft penetrates out of the sliding slot hole, one end of the button installation shaft, which penetrates out of the sliding slot hole, is limited by a clamp spring, and the button is arranged on the button installation shaft and can horizontally move back and forth. The button can be arranged at any position of the operating mechanism by adopting the structure, so that the aesthetic feeling of the appearance of the operating mechanism is ensured.
Preferably, the reset elastic piece is a reset tension spring, one end of the reset tension spring is connected to the button, and the other end of the reset tension spring is arranged on the button mounting shaft.
Further, the boss and the flange are stretched out to the one-level rotating plate, the one-level rotating plate is in through the axle dress mounting plate is last, the one-level rotating plate pass through the boss with the protruding pole linkage that sets up on the button, the one-level rotating plate passes through step one of protruding board front end and the second overlap joint linkage of step two on the second grade trace, the lower extreme and the semi-axis pivot of closing a floodgate of second grade trace are connected, the second grade trace can drive in the downstream in-process of moving the semi-axis of closing a floodgate rotates, the semi-axis of closing a floodgate rotates the in-process and can be to closing a floodgate hasp unblock.
Further, a return torsion spring is mounted on the shaft to provide a return force to the primary rotating plate.
Preferably, the button is provided with 2 sliding slots side by side up and down.
Preferably, the mounting base plate is a side plate.
Preferably, the second-stage linkage rod is connected with a linkage rod tension spring to enable the linkage rod tension spring to have a tendency of rotating around the lower end, so that the lap joint of the first step and the second step is ensured.
Advantageous effects
According to the switching-on interlocking mechanism of the breaker operating mechanism, provided by the invention, through multipolar linkage transmission, the external force required during operation is reduced, the operation comfort is increased, the motion transmission is more stable through secondary motion transmission, meanwhile, the service life of a button part is prolonged through operation force reduction, the whole interlocking mechanism locks the state before the switching-on of a switching-on half shaft, safety accidents caused by misoperation are avoided, and the switching-on operation can be automatically reset and is not interfered after the switching-on operation starts.
Drawings
FIG. 1 is a schematic view of an operating mechanism in an embodiment of the present invention.
Fig. 2 is a schematic structural view of an interlocking mechanism in an embodiment of the present invention.
Fig. 3 is a schematic view of the structure of the button in the embodiment of the present invention.
Fig. 4 is a schematic structural view of a primary rotating plate according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of a secondary linkage in an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a closing half shaft in an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of an embodiment of the present invention in a state to be closed.
Fig. 8 is a schematic structural diagram of an embodiment of the present invention in a closed state.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Example 1
As shown in fig. 1 and 2, a switching-on interlocking mechanism of a circuit breaker operating mechanism comprises a mounting base plate 1, and the mounting base plate 1 is preferably a side plate in this embodiment. The driving piece 2 is installed and can make a round trip movement on the mounting plate 1, and reset elastic piece 3 with driving piece 2 is connected and can drive driving piece 2 resets, in this embodiment, reset elastic piece 3 is reset extension spring, reset extension spring one end is connected on the button, and the other end is installed on the button installation axle 7. The driving piece 2 is arranged on the mounting bottom plate 1 and can push the primary rotating plate 4 to rotate in the moving process, the primary rotating plate 4 can push the secondary linkage rod 5 to move in the rotating process, and the closing half shaft 6 can be driven to rotate in the moving process of the secondary linkage rod 5.
In this embodiment, as shown in fig. 2 and 3, the driving member 2 is a button, a sliding slot 201 is disposed on the button, and in this embodiment, 2 sliding slots 201 are preferably disposed on the button side by side. One end of a button installation shaft 7 is fixedly arranged on the installation base plate 1, the other end of the button installation shaft penetrates out of the sliding slotted hole 201, one end of the button installation shaft 7 penetrating out of the sliding slotted hole 201 is limited by a clamp spring 8, and the button is arranged on the button installation shaft 7 and can horizontally move back and forth.
As shown in fig. 2,3,4,5 and 6, the primary rotating plate 4 extends out of the boss 401 and the convex plate 402, the primary rotating plate 4 is mounted on the mounting base plate 1 through a shaft 9, and a reset torsion spring 12 is mounted on the shaft 9 and can provide a reset force for the primary rotating plate 4, one end of the reset torsion spring 10 abuts against the primary rotating plate 4, and the other end abuts against the side plate to provide a reset force for the counter-clockwise rotation of the primary rotating plate 4.
As shown in fig. 2,3,4,5 and 6, the primary rotating plate 4 is linked with the convex rod 202 arranged on the button through a boss 401, the primary rotating plate 4 is in lap joint with the step two 501 at the upper end of the secondary linkage rod 5 through the step one 402a at the front end of the convex plate 402, specifically, the secondary linkage rod 5 has a tendency of rotating around the lower end through the linkage rod tension spring 11 connected with the secondary linkage rod 5, so that the lap joint of the step one 402a and the step two 501 is ensured, and the other end of the linkage rod tension spring 11 is arranged on the side plate. The lower end of the secondary linkage rod 5 is pivotally connected with the closing half shaft 6, the closing half shaft 6 can be driven to rotate in the downward movement process of the secondary linkage rod 5, and the closing lock catch 12 can be unlocked in the rotation process of the closing half shaft 10.
As shown in fig. 7, when an external force is required to be applied to the button, the button overcomes the resistance of the reset tension spring and slides in the sliding slot 201 to the inside of the operating mechanism, the button pushes the boss 401 through the convex rod 202 to drive the primary rotating plate 4 to rotate clockwise, the primary linkage plate 4 pushes the step two 501 to drive the secondary linkage rod 5 to move downwards through the step one 402a in the clockwise rotating process, the secondary linkage rod 5 pushes the closing half shaft 6 to rotate in the downward moving process, the amount of the hasp a between the closing half shaft 6 and the opening lock catch 12 is gradually reduced, when the amount of the hasp is reduced to zero, the locking between the closing half shaft and the closing lock catch of the operating mechanism is broken, then the cam 13, the locking state between the closing lock catch 12 and the energy storage lever 14 is broken, the energy storage lever 14 can rapidly act under the action of the main spring 15 to push the connecting rod assembly 16 to drive the main shaft of the operating mechanism to rotate, and the operating mechanism is enabled to reach the closing state as shown in fig. 8.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. A circuit breaker operating device closing interlocking device which characterized in that: the automatic switching-on device comprises a mounting bottom plate (1), wherein a driving piece (2) is arranged on the mounting bottom plate (1) and can move back and forth, a reset elastic piece (3) is connected with the driving piece (2) and can drive the driving piece (2) to reset, the driving piece (2) is arranged on the mounting bottom plate (1) and can push a primary rotating plate (4) to rotate in the moving process, a secondary linkage rod (5) can be pushed to move in the rotating process of the primary rotating plate (4), and a switching-on half shaft (6) can be driven to rotate in the moving process of the secondary linkage rod (5);
the utility model discloses a brake lock catch (12) unlocking mechanism, including mounting baseplate (1), boss (401) and flange (402) are stretched out to one-level pivoted plate (4), one-level pivoted plate (4) is adorned through axle (9) mounting baseplate (1), one-level pivoted plate (4) is through boss (401) and the protruding pole (202) linkage that sets up on the button, one-level pivoted plate (4) is through step one (402 a) of flange (402) front end and the step two (501) overlap joint linkage of second grade trace (5) upper end, the lower extreme and the closing semi-axis (6) pivoted connection of second grade trace (5), second grade trace (5) can drive in the downstream motion process closing semi-axis (6) rotate, closing semi-axis (6) rotate in-process can closing brake hasp (12) unblock.
2. The circuit breaker operating mechanism closing interlock of claim 1 wherein: the driving piece (2) is a button, a sliding slot hole (201) is formed in the button, one end of a button installation shaft (7) is fixedly arranged on the installation base plate (1), the other end of the button installation shaft penetrates out of the sliding slot hole (201), one end of the button installation shaft (7) penetrates out of the sliding slot hole (201) to be limited by a clamp spring (8), and the button is arranged on the button installation shaft (7) and can horizontally move back and forth.
3. The circuit breaker operating mechanism closing interlock of claim 1 wherein: the reset elastic piece (3) is a reset tension spring, one end of the reset tension spring is connected to the button, and the other end of the reset tension spring is arranged on the button mounting shaft (7).
4. The circuit breaker operating mechanism closing interlock of claim 1 wherein: a return torsion spring (10) is mounted on the shaft (9) to provide a return force to the primary rotating plate (4).
5. The circuit breaker operating mechanism closing interlock of claim 2 wherein: and 2 sliding slotted holes (201) are arranged on the button in parallel up and down.
6. The circuit breaker operating mechanism closing interlock of claim 1 wherein: the mounting bottom plate (1) is a side plate.
7. The circuit breaker operating mechanism closing interlock of claim 1 wherein: the secondary linkage rod (5) is connected with a linkage rod tension spring (11) to enable the linkage rod tension spring to have a tendency of rotating around the lower end, so that the lap joint of the step I (402 a) and the step II (501) is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621728.1A CN113889374B (en) | 2020-07-01 | 2020-07-01 | A closing interlocking mechanism for circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621728.1A CN113889374B (en) | 2020-07-01 | 2020-07-01 | A closing interlocking mechanism for circuit breaker operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113889374A CN113889374A (en) | 2022-01-04 |
| CN113889374B true CN113889374B (en) | 2024-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010621728.1A Active CN113889374B (en) | 2020-07-01 | 2020-07-01 | A closing interlocking mechanism for circuit breaker operating mechanism |
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| CN113889375B (en) * | 2020-07-01 | 2024-08-13 | 上海良信电器股份有限公司 | A circuit breaker operating mechanism opening and closing interlocking mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214012866U (en) * | 2020-07-01 | 2021-08-20 | 上海良信电器股份有限公司 | Closing interlocking mechanism of circuit breaker operating mechanism |
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| CN104319158B (en) * | 2014-09-22 | 2016-06-15 | 宁波舜利高压开关科技有限公司 | Operating mechanism hand push button device and actuating method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214012866U (en) * | 2020-07-01 | 2021-08-20 | 上海良信电器股份有限公司 | Closing interlocking mechanism of circuit breaker operating mechanism |
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| CN113889374A (en) | 2022-01-04 |
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