CN210692466U - Strut type circuit breaker capable of being rapidly opened and closed - Google Patents
Strut type circuit breaker capable of being rapidly opened and closed Download PDFInfo
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- CN210692466U CN210692466U CN201921423469.0U CN201921423469U CN210692466U CN 210692466 U CN210692466 U CN 210692466U CN 201921423469 U CN201921423469 U CN 201921423469U CN 210692466 U CN210692466 U CN 210692466U
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Abstract
The utility model is suitable for the technical field of circuit breakers, and provides a fast opening and closing pillar type circuit breaker, which comprises a box body, solid-sealed polar poles, a spring operating mechanism, an opening and closing structure, a junction box, an auxiliary switch and a link mechanism, wherein three solid-sealed polar poles are fixedly connected with the top surface of the box body at equal intervals, the spring operating mechanism and the auxiliary switch are arranged inside the box body, one side surface of the box body is connected with an outer cylinder, the opening and closing structure is arranged inside the side surface of the box body and the outer cylinder, one end surface of the box body is fixedly connected with the junction box, the spring operating mechanism is provided with a crank arm, an opening and closing semi-axis, a manual opening and closing shaft, a main shaft, a closing spring, a travel switch and a tripper, the opening and closing structure comprises, the device has the characteristic of quick action and has the advantages of quick on-off and quick fault protection functions.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker, especially, relate to a strut type circuit breaker of quick deciliter.
Background
Pole breakers refer to circuit breakers that are installed and operated on electrical poles. The research level of strength and the manufacturing technology of various circuit breakers have been greatly developed, and the vacuum circuit breaker is not limited to the medium voltage power grid, but is developed toward the high voltage and large capacity. The research level of the strength and the manufacturing technology of various circuit breakers have been developed greatly, the vacuum circuit breaker is not only limited to a medium-voltage power grid but also developed towards the direction of high voltage and large capacity, and the sulfur hexafluoride circuit breaker has many advantages such as strong breaking capacity, more continuous breaking times, frequent operation, low operation noise, no fire hazard and the like, thereby being a good oilless device.
With the rapid development of economy and the continuous increase of power supply amount in China, particularly the increasingly strengthened dependence of various customers on electric power, in order to improve the power supply reliability of a power grid, pole-mounted circuit breakers are often used for connection, segmentation and branch lines in the power grid so as to improve the power supply reliability of the power grid.
However, the existing pole-mounted circuit breaker has a slow switching speed and is not sensitive enough, so that a new fast-switching pole-mounted circuit breaker is needed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a strut type circuit breaker of deciliter fast aims at solving current strut type circuit breaker switching speed that opens and shuts and is slower, not sensitive enough problem.
The embodiment of the utility model provides a realize like this, a quick deciliter column circuit breaker, its characterized in that, including the box, gu seal utmost point post, spring operating device, close separating brake structure, terminal box, auxiliary switch and link mechanism, wherein, the box is the cuboid structure;
an energy storage handle is arranged on the outer side of the box body and connected with an energy storage shaft;
the top surface of the box body is fixedly connected with three solid-sealed polar columns at equal intervals, the solid-sealed polar columns are provided with arc extinguish chambers, static contacts, moving contacts and insulating pull rods are arranged in the arc extinguish chambers, the static contacts are in contact connection with the moving contacts, and the moving contacts are fixedly connected with the insulating pull rods;
the spring operating mechanism and the auxiliary switch are arranged in the box body, the spring operating mechanism is provided with a connecting lever, a breaking semi-axis, a closing semi-axis, a manual opening and closing shaft, a main shaft, a closing spring, a travel switch and a release, the connecting lever is hinged in the box body and comprises a breaking connecting lever and a closing connecting lever, the breaking connecting lever is fastened on the breaking semi-axis, the closing semi-axis is fastened on the closing semi-axis, the breaking semi-axis and the closing semi-axis are in rotating connection with the manual opening and closing shaft, the main shaft and the manual opening and closing shaft are in meshing connection through gears, the manual opening and closing shaft is fixedly connected with an energy storage shaft, the main shaft and the manual opening and closing shaft rotate in the same direction, the closing spring is hinged in the box body, the travel switch is in rotating connection with the box body, the release comprises an overcurrent, the circuit is connected and the opening half shaft is connected;
one side surface of the box body is connected with an outer barrel, a switching-on and switching-off structure is arranged in the outer barrel and comprises a switching-on coil, a switching-off coil, a movable iron core, a magnet assembly and a push rod, the switching-on coil and the switching-off coil are arranged at the top of the outer barrel, the switching-on coil is also provided with a magnetic separation disc, the magnetic separation disc is arranged in the middle of the switching-on coil and the switching-off coil, a switching-off baffle is arranged below the switching-off coil and connected with the magnet assembly, the other end of the magnet assembly is connected with the switching-on baffle arranged on the switching-on coil, the movable iron core is movably connected with the movable iron core in the;
one end face of the box body is fixedly connected with the junction box.
Furthermore, four bases are arranged at right angles on the bottom surface of the box body.
Furthermore, a copper sleeve, a pointer, a split and combination label and a motor are fixedly connected to one side face of the box body, the copper sleeve is fixedly connected with the box body, the copper sleeve is rotatably connected with the pointer, the pointer rotates back and forth at an angle of 60 degrees, the split and combination label with a rectangular structure is fixed to one side face of the box body and is located right above the pointer, and a motor spindle is a gear shaft and is meshed with the spindle.
Furthermore, the energy storage handle is also provided with an opening sign which is of a cuboid structure and is fixed on the energy storage handle, and the energy storage handle is of a long plate-shaped structure with a circular ring at one end.
Still further, the crank arm further includes an output crank arm that engages the spindle via a cam.
Furthermore, the release comprises an opening release and a closing release, the opening release is connected with an opening half shaft, and the closing release is connected with a closing half shaft.
Furthermore, the closing coil, the magnetic isolation disc, the closing baffle, the opening coil, the opening baffle, the movable iron core and the magnet assembly are arranged in a concentric circle structure, the closing coil and the opening coil are electrified to generate different magnetic fields, the magnetic fields repel each other with the magnetic isolation disc, and the movable iron core and the magnet assembly attract each other.
Furthermore, the magnetism isolating disc is fixedly connected with the ejector rod.
Furthermore, the connecting rod mechanism also comprises a connecting rod, one end of the connecting rod is connected with the rotating plate, and the other end of the connecting rod is connected with the main shaft.
Compared with the prior art, the utility model provides a pair of quick deciliter column circuit breaker has following beneficial effect:
the fast-opening and closing column type circuit breaker is characterized in that a closing coil, an opening coil, a magnetic separation disc, a movable iron core, a push rod, a magnet assembly, a static contact, a movable contact and the like are arranged, so that when the energy storage handle is manually rotated anticlockwise or when the closing coil passes through direct current, the closing coil generates a magnetic field and the magnetic separation disc forms strong repulsion force to push the magnetic separation disc to drive the movable iron core and the push rod to move towards a closing baffle, the movable iron core is kept at the end of the closing baffle under the action of the magnet assembly, the push rod pushes the rotating plate to rotate upwards, the rotating plate drives a main shaft to rotate through gear engagement, the rotating plate drives a main shaft to rotate, a closing spring extends, an insulating pull rod moves upwards, the main shaft is buckled with a closing arm and a closing half shaft, a travel switch is switched, a motor is powered off, the movable contact and the static contact are closed to complete the closing, the opening coil generates a magnetic field and generates strong repulsion with the magnetic isolation disc, the magnetic isolation disc is pushed to drive the movable iron core and the ejector rod to move towards the opening baffle plate end, the movable iron core is kept at the opening baffle plate end under the action of the magnet assembly, the ejector rod drives the rotating plate to move downwards, the insulating pull rod moves downwards, the movable contact is separated from the fixed contact, the opening of the circuit breaker is realized, the quick opening and closing permanent magnet operating mechanism is adopted, the characteristic of quick action is realized, when the current value of the coil of the overcurrent release reaches 5A, the overcurrent release drives the opening half shaft to move, the opening half shaft and the opening crank arm are unlocked, the circuit breaker is opened, and the quick fault protection function is realized.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, which is a best column circuit breaker with a fast opening and closing function;
fig. 2 is a schematic structural diagram of the column circuit breaker according to the embodiment of the present invention in a closing state;
fig. 3 is a schematic transmission diagram of a spring operating mechanism of a fast opening and closing pillar type circuit breaker according to an embodiment of the present invention;
fig. 4 is a front view of a spring operating mechanism of a strut-type circuit breaker according to an embodiment of the present invention;
fig. 5 is a rear view of a spring operating mechanism of a strut-type circuit breaker according to an embodiment of the present invention.
In the figure: 1-box body, 2-solid sealed pole, 3-spring operating mechanism, 4-switching-on/off structure, 5-junction box, 6-auxiliary switch, 7-link mechanism, 11-copper sleeve, 12-pointer, 13-switching-on/off sign, 14-energy storage handle, 15-energy storage shaft, 16-motor, 21-static contact, 22-movable contact, 23-insulating pull rod, 31-crank arm, 311-output crank arm, 312-switching-off crank arm, 313-switching-on crank arm, 32-switching-off half shaft, 33-switching-on half shaft, 34-manual switching-on/off shaft, 35-main shaft, 36-switching-on spring, 37-travel switch, 38-release, 381-switching-off release, 382-switching-on release, 383-overcurrent release, 41-closing coil, 42-magnetic separation disc, 43-closing baffle, 431-opening baffle, 44-opening coil, 45-movable iron core, 46-magnet assembly, 47-ejector rod, 71-rotating plate and 72-connecting rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1-2, the utility model provides a quick deciliter column type circuit breaker, including box 1, gu seal utmost point post 2, spring operating device 3, close separating brake structure 4, terminal box 5, auxiliary switch 6 and link mechanism 7, 1 top surface equidistance fixed connection of box three gu seal utmost point post 2, 1 internally mounted spring operating device 3 of box and auxiliary switch 6, spring operating device 3 and auxiliary switch 6 set up inside box 1, the urceolus is connected to 1 side of box, set up in 1 side of box and the urceolus and close separating brake structure 4, a terminal surface fixed connection terminal box 5 of box 1.
In the specific implementation process, as shown in fig. 1, a box body 1 is a cuboid structure, four bases are arranged at right angles on the bottom surface of the box body 1, the four bases are convenient to fix, three solid-sealed poles 2 are fixedly connected to the top surface of the box body 1 at equal intervals, a spring operating mechanism 3 and an auxiliary switch 6 are installed inside the box body 1, a terminal box 5 is fixedly connected to one end surface of the box body 1, each external circuit is connected through the terminal box 5, an opening and closing structure 4 is arranged on the side surface of the box body 1, a copper sleeve 11, a pointer 12 and an opening and closing label 13 are fixedly connected to one side surface of the box body 1, the copper sleeve 11 is rotatably connected with the pointer 12, the back and forth rotation angle of the pointer 12 is 60 degrees, the opening and closing label 13 with a rectangular structure is fixed to one side surface of the box body 1 and is positioned right above the pointer 12, the connecting rod mechanism 7, when switching-on and switching-off are converted, the rotating plate 71 moves to drive the connecting rod 72 to rotate, and the connecting rod 72 drives the pointer 12 to rotate, so that switching-on and switching-off states are accurately displayed, and the checking is convenient.
As shown in fig. 2, three embedded poles 2 are fixedly connected to the top surface of a box 1 at equal intervals, the embedded poles 2 are provided with an arc extinguish chamber, a static contact 21, a moving contact 22 and an insulating pull rod 23 are arranged in the arc extinguish chamber, the static contact 21 is in contact connection with the moving contact 22, the moving contact 22 is fixedly connected with the insulating pull rod 23, the moving contact 22 is in a closing state when in contact with the static contact 21, the moving contact 22 is separated from the static contact 21 into a breaking state, one side surface of the box 1 is connected with an outer cylinder, a closing and breaking structure 4 is arranged in the outer cylinder, the closing and breaking structure 4 comprises a closing coil 41, a breaking coil 44, a moving iron core 45, a magnet assembly 46, a mandril 47 and a rotating plate 71, the closing coil 41 and the breaking coil 44 are arranged at the top of the outer cylinder, the closing coil 41 is further provided with a magnetic isolation disc, the opening baffle 431 is connected with the magnet assembly 46, the other end of the magnet assembly 46 is connected with the closing baffle 43 arranged on the closing coil 41, the middle of the magnet assembly 46 is movably connected with the movable iron core 45, the movable iron core 45 is connected with the ejector rod 47, the ejector rod 47 is hinged with the rotating plate 71, the closing coil 41, the magnetism isolating disc 42 and the closing baffle 43, the opening coil 44, the opening baffle 431, the movable iron core 45 and the magnet assembly 46 are arranged in a concentric circle structure, the closing coil 41 and the opening coil 44 are electrified to generate different magnetic fields, the magnetic fields repel each other with the magnetism isolating disc 42, the magnetism isolating disc 42 is fixedly connected with the ejector rod 47, the magnetic field generated by the closing coil 41 repels each other with the magnetism isolating disc 42, the magnetism isolating disc 42 is subjected to downward repulsive force, the magnetism isolating disc 42 drives the ejector rod 47 to move downwards, the magnetic field generated by the opening coil 44 repels each other with the magnetism isolating disc 42, the magnetism isolating disc 42 is subjected to upward repulsive force, the magnetism isolating disc 42 drives the ejector rod 47 to move upwards, and the movable iron core 45 and the magnet assembly attract each other.
As shown in fig. 3-5, the spring operating mechanism 3 and the auxiliary switch 6 are connected inside the box 1 through a link mechanism 7, the spring operating mechanism 3 is provided with a crank arm 31, a breaking half shaft 32, a closing half shaft 33, a manual opening/closing shaft 34, a main shaft 35, a closing spring 36, a travel switch 37 and a release 38, the crank arm 31 is hinged inside the box 1, the crank arm 31 comprises an output crank arm 311, a breaking crank arm 312 and a closing crank arm 313, the output crank arm 311 is engaged with the main shaft 35 through a cam, the breaking crank arm 312 is fastened with the breaking half shaft 32, the closing crank arm 313 is fastened with the half shaft 33, the breaking half shaft 32 and the closing half shaft 33 are rotatably connected with the manual opening/closing shaft 34, the main shaft 35 is connected with the manual opening/closing shaft 34 through a gear engagement, the manual opening/closing shaft 34 is fixedly connected with the energy storage shaft 15, the main shaft 35 is in the same rotation direction as the manual opening/closing shaft, the travel switch 37 is rotatably connected inside the box body 1, the tripper 38 comprises a switching-off tripper 381, a switching-on tripper 382 and an overcurrent tripper 383, the switching-off tripper 381 is connected with a switching-off half shaft 32, the switching-on tripper 382 is connected with a switching-on half shaft 33, and a coil, a connecting circuit and the switching-off half shaft 32 are arranged outside the overcurrent tripper 383.
When the circuit breaker is in a closing state, and the current value passed by the coil of the overcurrent release 383 reaches 5A, the overcurrent release 383 drives the opening half shaft 32 to move, so that the opening half shaft 32 and the opening crank arm 312 are unlocked, the circuit breaker is opened, and rapid fault protection is realized.
The utility model provides a pair of strut type circuit breaker theory of operation of deciliter fast:
when the energy storage handle 14 is manually rotated anticlockwise or when the closing coil 41 passes direct current, the closing coil 41 generates a magnetic field and forms strong repulsion with the magnetic separation disc 42 to push the magnetic separation disc 42 to drive the movable iron core 45 and the ejector rod 47 to move towards the closing baffle 43, the movable iron core 45 is kept at the end of the closing baffle 43 under the action of the magnet assembly 46, the ejector rod 47 pushes the rotating plate 71 to rotate upwards, the rotating plate 71 drives the main shaft 35 to rotate through gear engagement, the closing spring 36 extends, the insulating pull rod 23 moves upwards, the main shaft 35 is buckled with the closing crank arm 313 and the closing half shaft 33, the travel switch 37 is switched, the motor 16 is powered off, the movable contact 22 and the static contact 21 are closed to complete the closing of the circuit breaker, and similarly, when the energy storage handle 14 is manually rotated clockwise or when the opening coil 44 passes direct current, the opening coil 44 generates a magnetic field and generates strong repulsion with the, the magnetic isolation disc 42 is pushed to drive the movable iron core 45, the ejector rod 47 moves towards the end of the opening baffle 431, under the action of the magnet assembly 46, the movable iron core 45 is kept at the end of the opening baffle 431, the ejector rod 47 drives the rotating plate 71 to move downwards, the insulating pull rod 23 moves downwards, the movable contact 22 is separated from the static contact 21, the opening of the circuit breaker is realized, a quick opening and closing permanent magnet operating mechanism is adopted, the characteristic of quick action is realized, the quick opening and closing and quick fault protection functions are realized, when the current value of a coil of the overcurrent release 383 reaches 5A, the overcurrent release 383 drives the opening half shaft 32 to move, the opening half shaft 32 is unlocked from the opening crank arm 312, the circuit breaker is opened, and the quick fault protection is realized.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A fast opening and closing pillar type circuit breaker is characterized by comprising a box body (1), a fixed-sealed pole (2), a spring operating mechanism (3), an opening and closing structure (4), a junction box (5), an auxiliary switch (6) and a connecting rod mechanism (7), wherein the box body (1) is of a cuboid structure;
an energy storage handle (14) is arranged on the outer side of the box body (1), and the energy storage handle (14) is connected with an energy storage shaft (15);
the top surface of the box body (1) is fixedly connected with three solid-sealed polar poles (2) at equal intervals, the solid-sealed polar poles (2) are provided with an arc extinguish chamber, a static contact (21), a moving contact (22) and an insulating pull rod (23) are arranged in the arc extinguish chamber, the static contact (21) is in contact connection with the moving contact (22), and the moving contact (22) is fixedly connected with the insulating pull rod (23);
the spring operating mechanism (3) and the auxiliary switch (6) are mounted inside the box body (1), the spring operating mechanism (3) and the auxiliary switch (6) are arranged inside the box body (1), the spring operating mechanism (3) is provided with a crank arm (31), a breaking half shaft (32), a closing half shaft (33), a manual closing and opening shaft (34), a main shaft (35), a closing spring (36), a travel switch (37) and a tripper (38), the crank arm (31) is hinged inside the box body (1), the crank arm (31) comprises a breaking crank arm (312) and a closing crank arm (313), the breaking crank arm (312) is buckled with the breaking half shaft (32), the closing crank arm (313) is buckled with the closing half shaft (33), the breaking crank arm (32) and the half shaft (33) are rotatably connected with the manual closing and opening shaft (34), and the main shaft (35) and the manual closing and opening shaft (34) are connected through meshing gears, the manual on-off shaft (34) is fixedly connected with the energy storage shaft (15), the main shaft (35) and the manual on-off shaft (34) rotate in the same direction, the closing spring (36) is hinged inside the box body (1), the travel switch (37) is rotatably connected inside the box body (1), the release (38) comprises an overcurrent release (383), a coil is arranged outside the overcurrent release (383), and the overcurrent release is connected with a circuit and a breaking half shaft (32);
the automatic opening and closing device is characterized in that one side face of the box body (1) is connected with an outer barrel, an opening and closing structure (4) is arranged in the outer barrel, the opening and closing structure (4) comprises a closing coil (41), an opening coil (44), a movable iron core (45), a magnet assembly (46) and an ejector rod (47), the closing coil (41) and the opening coil (44) are arranged at the top of the outer barrel, the closing coil (41) is further provided with a magnetic isolating disc (42), the magnetic isolating disc (42) is arranged in the middle of the closing coil (41) and the opening coil (44), an opening baffle (431) is arranged below the opening coil (44), the opening baffle (431) is connected with the magnet assembly (46), the other end of the magnet assembly (46) is connected with a closing baffle (43) arranged on the closing coil (41), and the middle of the magnet assembly (46) is movably connected with the movable iron core (45), the movable iron core (45) is connected with the ejector rod (47), and the ejector rod (47) is hinged with a rotating plate (71) of the connecting rod mechanism (7);
one end face of the box body (1) is fixedly connected with the junction box (5).
2. The strut-type circuit breaker capable of being rapidly switched on and off as claimed in claim 1, wherein four bases are arranged at right angles to the bottom surface of the case (1).
3. The strut-type circuit breaker capable of being rapidly switched on and off according to claim 1, wherein a copper sleeve (11), a pointer (12), a switching sign (13) and a motor (16) are fixedly connected to one side of the box body (1), the copper sleeve (11) is fixedly connected with the box body (1), the copper sleeve (11) is rotatably connected with the pointer (12), the pointer (12) rotates back and forth at an angle of 60 degrees, the switching sign (13) of a rectangular structure is fixed to one side of the box body (1) and is located right above the pointer (12), and a main shaft of the motor (16) is a gear shaft and is meshed with the main shaft (35).
4. The quick-opening and closing column type circuit breaker as claimed in claim 1, wherein the energy storage handle (14) is further provided with a breaking plate, the breaking plate is of a rectangular parallelepiped structure and is fixed on the energy storage handle (14), and the energy storage handle (14) is of a long plate-shaped structure with a circular ring at one end.
5. A quick disconnect strut breaker as defined in claim 1 wherein said lever (31) further includes an output lever (311), said output lever (311) being cammed into engagement with said spindle (35).
6. A quick-disconnect column circuit breaker as claimed in claim 1 wherein the trip unit (38) includes a tripping unit (381) and a closing unit (382), the tripping unit (381) being connected to a tripping half shaft (32) and the closing unit (382) being connected to a closing half shaft (33).
7. The strut type circuit breaker capable of being switched on and off rapidly according to claim 1, wherein the switching-on coil (41), the magnetic isolation disc (42), the switching-on baffle (43), the switching-off coil (44), the switching-off baffle (431), the movable iron core (45) and the magnet assembly (46) are arranged in a concentric circle structure, the switching-on coil (41) and the switching-off coil (44) are electrified to generate different magnetic fields, the magnetic fields repel each other with the magnetic isolation disc (42), and the movable iron core (45) attracts each other with the magnet assembly.
8. A quick-disconnect strut-type circuit breaker according to claim 1 wherein said magnetic separator disc (42) is fixedly attached to said pushrod (47).
9. A quick-opening/closing column type circuit breaker according to claim 1, wherein said link mechanism (7) further comprises a link (72), one end of said link (72) is connected to said rotating plate (71), and the other end of said link (72) is connected to said main shaft (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921423469.0U CN210692466U (en) | 2019-08-29 | 2019-08-29 | Strut type circuit breaker capable of being rapidly opened and closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921423469.0U CN210692466U (en) | 2019-08-29 | 2019-08-29 | Strut type circuit breaker capable of being rapidly opened and closed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210692466U true CN210692466U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921423469.0U Active CN210692466U (en) | 2019-08-29 | 2019-08-29 | Strut type circuit breaker capable of being rapidly opened and closed |
Country Status (1)
| Country | Link |
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| CN (1) | CN210692466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600339A (en) * | 2019-08-29 | 2019-12-20 | 常德威迪电气有限责任公司 | Strut type circuit breaker capable of being rapidly opened and closed |
| CN114420513A (en) * | 2022-01-18 | 2022-04-29 | 山东普益电气有限公司 | Flexible quick circuit breaker actuating mechanism |
-
2019
- 2019-08-29 CN CN201921423469.0U patent/CN210692466U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600339A (en) * | 2019-08-29 | 2019-12-20 | 常德威迪电气有限责任公司 | Strut type circuit breaker capable of being rapidly opened and closed |
| CN114420513A (en) * | 2022-01-18 | 2022-04-29 | 山东普益电气有限公司 | Flexible quick circuit breaker actuating mechanism |
| CN114420513B (en) * | 2022-01-18 | 2024-04-16 | 山东正本电气有限公司 | Flexible quick breaker driving mechanism |
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