CN114843147A - Interlocking mechanism for low-voltage double-plastic-shell circuit breaker - Google Patents
Interlocking mechanism for low-voltage double-plastic-shell circuit breaker Download PDFInfo
- Publication number
- CN114843147A CN114843147A CN202210765112.0A CN202210765112A CN114843147A CN 114843147 A CN114843147 A CN 114843147A CN 202210765112 A CN202210765112 A CN 202210765112A CN 114843147 A CN114843147 A CN 114843147A
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- circuit breaker
- positioning
- inner cavity
- shell
- front side
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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
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
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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
-
- 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
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention relates to the technical field of electrical elements, in particular to an interlocking mechanism for a low-voltage double-plastic-shell circuit breaker, which comprises a plastic shell and a circuit breaker, wherein the interlocking mechanism and a positioning mechanism are respectively installed on the left side and the right side of an inner cavity of the plastic shell, positioning pins are respectively installed at the upper end and the lower end of the left side and the right side of the circuit breaker, the circuit breaker is inserted into the inner cavity of the positioning mechanism, the positioning pins are clamped with the positioning mechanism to position the circuit breaker, one end of a connecting rod is installed at the bottom end of the right side of the interlocking mechanism, and the other end of the connecting rod is connected with a switching-off and switching-on rod of the circuit breaker. The interlocking mechanism is convenient to disassemble and assemble the circuit breaker, reduces the replacement difficulty, does not need to move the circuit breaker up and down, avoids the safety problems of electric shock and the like caused by collision with surrounding electrical elements, is suitable for interlocking use of various disconnecting switches, has small use limitation, and greatly meets the requirements of power on and power off.
Description
Technical Field
The invention relates to the technical field of electrical elements, in particular to an interlocking mechanism for a low-voltage double-plastic-shell circuit breaker.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The molded case circuit breaker not only can monitor electric energy, but also has a fire extinguishing function;
in actual electric control, for the sake of safety, interlocking exists between the circuit breaker and the disconnecting switch, when the circuit breaker is in a switching-on position, the disconnecting switch cannot be switched on and off, so that the disconnecting switch is prevented from generating electric arcs, however, the disconnecting switch has different sizes and different volumes according to the rated current of the disconnecting switch, the current interlocking mechanism can only be applied to one disconnecting switch, has poor practicability, and is difficult to meet the interlocking between various disconnecting switches and the circuit breaker, in view of the above problems, there is a need for an interlocking mechanism for a molded case circuit breaker that is convenient to use.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and the technical problem to be solved by the invention is an interlocking mechanism for a low-voltage double-plastic-shell circuit breaker.
In order to achieve the purpose, the invention provides the following technical scheme: an interlocking mechanism for a low-voltage double-plastic-shell circuit breaker comprises a plastic shell and a circuit breaker, wherein the interlocking mechanism and a positioning mechanism are respectively installed on the left side and the right side of an inner cavity of the plastic shell, positioning pins are respectively installed on the upper end and the lower end of the left side and the right side of the circuit breaker, the circuit breaker is inserted into the inner cavity of the positioning mechanism, the positioning pins and the positioning mechanism are clamped to position the circuit breaker, one end of a connecting rod is installed at the bottom end of the right side of the interlocking mechanism, and the other end of the connecting rod is connected with a switching-on and switching-off rod of the circuit breaker;
positioning mechanism is including installing the frame at the moulded case inner chamber, and the frame is the U-shaped, the preformed hole has been seted up at the right side wall middle part of frame, the inner chamber of frame is pegged graft and is had gliding movable plate from top to bottom, the equal joint in top left and right sides of movable plate has the one end of first spring, and the other end of first spring and the inner chamber top joint of frame, the locating plate is all installed at both ends about the inner wall of movable plate, and the locating plate cup joints and fixes a position the circuit breaker at the locating pin outer wall, the shifting block that runs through the preformed hole inner chamber is installed on the right side of movable plate.
Preferably, the positioning plate is U-shaped, and the depth of the inner cavity is greater than the diameter of the positioning pin.
Preferably, interlocking device is including installing the drive assembly who moulds the shell left side wall, the slide rail is installed along upper and lower direction to drive assembly's top rear side, and the slide rail top runs through the upper surface of moulding the shell, gliding sliding sleeve from top to bottom has been cup jointed to the outer wall of slide rail, the front side top spiro union of sliding sleeve has positioning bolt, and positioning bolt rear side and slide rail front side contact to the sliding sleeve location, the front side bottom of sliding sleeve is installed and is blockked the subassembly.
Preferably, the drive assembly is including installing the shell in the left of the shell inner chamber of moulding the shell, the inner chamber front side of shell has been pegged graft along upper and lower direction and has the carriage release lever, and the carriage release lever is the rectangle, there is the one end of pars contractilis at the inner chamber rear side middle part of shell through the round pin hub connection, and the other end of pars contractilis and the bottom of carriage release lever through the round pin hub connection, the one end of connecting rod is still rotatably installed to pars contractilis and the junction of carriage release lever, and the other end and the connecting rod left end installation of connecting rod, the rack is installed on the top of carriage release lever.
Preferably, block the subassembly including installing the removal case in sliding sleeve front side bottom, and the rack top runs through the upper surface of removal case, the carousel is installed through the supporting to the inner chamber of removal case, the location screw has all been seted up along circumference outward to the front side of carousel, the inner chamber spiro union of location screw has drive bolt, the rotatory gear of coaxial line is installed to the front side of carousel, and the gear is connected with the rack toothing, the apron is installed to the front side of removal case, stop collar is installed on the right side of removal case, the inner chamber of stop collar is pegged graft and is had the slide that can the horizontal slip, the spout has been seted up along the upper and lower direction to the front side left end of slide, the pin is all installed at both ends about the right side wall of slide.
Preferably, the length of the sliding groove is larger than the diameter of the circular track for the driving bolt to move under the action of the turntable.
Preferably, the telescopic part comprises a sleeve connected to the rear side of the inner cavity of the shell through a pin, the inner cavity of the sleeve is connected with the second spring in an inserting mode, the bottom end of the inner cavity of the sleeve is connected with one end of a push rod in an inserting mode, and the other end of the push rod is connected with the bottom end of the movable rod through a pin.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the breaker, the shifting block is lifted upwards, the movable plate drives the positioning plate to move upwards to be separated from the positioning pin, so that the breaker is disassembled, the movable plate pushes the positioning plate to move downwards under the action of the elastic force of the first spring, and the positioning plate is sleeved on the positioning pin to position the breaker, so that the breaker is convenient to disassemble and install, the replacement difficulty is reduced, the breaker does not need to be moved upwards or downwards, and safety problems such as electric shock and the like caused by collision with surrounding electrical elements are avoided;
2. screwing out the driving bolt from the sliding groove, enabling the rotary plate to rotate freely, screwing the positioning bolt to keep away from the sliding rail, enabling the sliding sleeve to slide up and down on the outer wall of the sliding rail, changing the height of the movable box, until the stop lever reaches a specified height, screwing the positioning bolt to contact with the sliding rail, screwing the driving bolt into the positioning screw hole capable of normally driving the sliding plate, completing height adjustment of the stop lever, and enabling the interlocking mechanism to be suitable for various disconnecting switches for interlocking use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front sectional view of the positioning mechanism of the present invention;
FIG. 3 is a left side view of the positioning plate of the present invention;
FIG. 4 is a schematic view of an interlock mechanism according to the present invention;
FIG. 5 is a right side cross-sectional view of an interlock mechanism of the present invention;
FIG. 6 is a front cross-sectional view of a barrier assembly of the present invention;
FIG. 7 is a right side sectional view of the telescoping section of the present invention.
In the figure: 1-plastic shell, 2-circuit breaker, 3-positioning mechanism, 4-interlocking mechanism, 5-positioning pin, 6-connecting rod, 31-frame, 32-preformed hole, 33-moving plate, 34-first spring, 35-positioning plate, 36-shifting block, 41-driving component, 42-sliding rail, 43-sliding sleeve, 44-positioning bolt, 45-blocking component, 411-shell, 412-moving rod, 413-telescopic part, 414-connecting rod, 415-rack, 451-moving box, 452-rotating disk, 453-positioning screw hole, 454-driving bolt, 455-gear, 456-cover plate, 457-limit sleeve, 458-sliding plate, 459-sliding groove, 4510-blocking rod, 4131-sleeve, 4132-second spring, 4133-push rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: an interlocking mechanism for a low-voltage double-molded case circuit breaker is shown in figures 1-7 and comprises a molded case 1 and a circuit breaker 2, wherein the interlocking mechanism 4 and a positioning mechanism 3 are respectively installed on the left side and the right side of an inner cavity of the molded case 1, positioning pins 5 are installed at the upper end and the lower end of the left side and the right side of the circuit breaker 2, the circuit breaker 2 is inserted into the inner cavity of the positioning mechanism 3, the positioning pins 5 are clamped with the positioning mechanism 3 to position the circuit breaker 2, one end of a connecting rod 6 is installed at the bottom end of the right side of the interlocking mechanism 4, and the other end of the connecting rod 6 is connected with a brake-opening and closing rod of the circuit breaker 2;
As preferred scheme, further, locating plate 35 is the U-shaped, and the inner chamber degree of depth is greater than 5 diameters of locating pin, ensures that locating plate 35 can wrap locating pin 5 completely, guarantees the stability between locating pin 5 and the locating plate 35 to realize circuit breaker 2 location.
As a preferred scheme, further, the interlocking mechanism 4 includes a driving assembly 41 installed on the left side wall of the plastic housing 1, a sliding rail 42 is installed on the rear side of the top end of the driving assembly 41 along the up-down direction, the top end of the sliding rail 42 penetrates through the upper surface of the plastic housing 1, the sliding rail 42 is i-shaped, the stability of the sliding sleeve 43 is improved, a sliding sleeve 43 capable of sliding up and down is sleeved on the outer wall of the sliding rail 42, a positioning bolt 44 is screwed on the top end of the front side of the sliding sleeve 43, the rear side of the positioning bolt 44 contacts with the front side of the sliding rail 42 to position the sliding sleeve 43, the contact surface between the positioning bolt 44 and the sliding rail 42 is a non-smooth surface, friction force is improved, the stability of the sliding sleeve 43 on the sliding rail 42 is further improved, and a blocking assembly 45 is installed at the bottom end of the front side of the sliding sleeve 43.
Preferably, the driving assembly 41 includes a housing 411 installed on the left side of the inner cavity of the plastic housing 1, a moving rod 412 is inserted into the front side of the inner cavity of the housing 411 in the up-down direction, the moving rod 412 is rectangular to prevent the moving rod 412 from rotating, the middle part of the rear side of the inner cavity of the housing 411 is connected with one end of a telescopic part 413 through a pin, the other end of the telescopic part 413 is connected with the bottom end of the moving rod 412 through a pin, the telescopic part 413 supports the moving rod 412 to move upwards, the joint of the telescopic part 413 and the moving rod 412 is rotatably provided with one end of a connecting rod 414, the other end of the connecting rod 414 is installed with the left end of the connecting rod 6, the top end of the moving rod 412 is provided with a rack 415, the rack 415 moves upwards or downwards to enable the gear 455 to rotate clockwise or anticlockwise.
Preferably, the blocking assembly 45 includes a moving box 451 installed at the bottom end of the front side of the sliding sleeve 43, the top end of the rack 415 penetrates the upper surface of the moving box 451, a rotating disc 452 is installed in the inner cavity of the moving box 451 through a support, positioning screw holes 453 are all formed on the outer edge of the front side of the rotating disc 452 along the circumferential direction, after the rotating disc 452 rotates to a specified angle, the driving bolt 454 can be screwed into the corresponding positioning screw hole 453, so that the driving bolt 454 can still stir the sliding plate 458 to move left and right normally, the driving bolt 454 is screwed into the inner cavity of the positioning screw hole 453, the gear 455 rotating coaxially is installed at the front side of the rotating disc 452, the gear 455 is engaged with the rack 415, a cover plate 456 is installed at the front side of the moving box 451, a position limiting sleeve 457 is installed at the right side of the moving box 451, the sliding plate 458 capable of sliding left and right is inserted into the inner cavity of the position limiting sleeve 457, a sliding groove 459 is formed at the left end of the front side of the sliding plate 458 along the up and down direction, and a blocking rod 4510 is arranged at the upper end and the lower end of the right side wall of the sliding plate 458, and after the blocking rod 4510 moves rightwards, the blocking rod is blocked at the front side of the isolating switch, so that the brake lever of the isolating switch is prevented from being pulled up and down, and the interlocking effect is realized.
Preferably, the length of the sliding slot 459 is greater than the diameter of the circular path of the driving bolt 454 driven by the rotating disc 452, so that the driving bolt 454 does not block the rotating disc 452 from rotating the driving bolt 454 when the driving bolt 454 slides up and down in the sliding slot 459.
Preferably, the telescopic part 413 includes a sleeve 4131 connected to the rear side of the inner cavity of the housing 411 by a pin, the sleeve 4131 and the push rod 4133 move linearly, a second spring 4132 is inserted into the inner cavity of the sleeve 4131, the second spring 4132 is a rotary spring, and is elastically deformed after being stretched or pressed, and returns to an initial state after an external force is removed. The push rod 4133 is pushed by the elasticity of the elastic part to move outwards, so that the movable rod 412 is positioned after moving upwards or downwards, one end of the push rod 4133 is inserted into the bottom end of the inner cavity of the sleeve 4131, and the other end of the push rod 4133 is connected with the bottom end of the movable rod 412 through a pin shaft.
The working principle is as follows:
step one, a plastic shell 1 is installed in equipment such as a power distribution cabinet which executes a storage function, an isolation switch is installed at a position located at the top of the plastic shell 1, when a breaker 2 is switched on, a connecting rod 414 is pulled to move upwards through a connecting rod 6, the connecting rod 414 plays a role in adjustment due to different swing tracks of a brake rod and an expansion part 413 of the breaker 2, the expansion part 413 is connected with the breaker 2, a push rod 4133 is enabled to swing upwards, the push rod 4133 moves towards the inside of a sleeve 4131 and extrudes a second spring 4132, a moving rod 412 moves upwards under the action of external force of the push rod 4133 until the breaker 2 is switched on, the push rod 4133 is propped against the top of an inner cavity of a shell 411 under the action of the elastic force of the second spring 4132, the moving rod 412 is positioned, in the process that the moving rod 412 moves upwards, a rack 415 also moves upwards, a rotary table 452 rotates clockwise for 180 degrees through a gear 455, and a driving bolt 454 on the rotary table 452 rotates along with the rotary table 452, when the driving bolt 454 slides up and down in the sliding groove 459, the driving bolt 454 stirs the sliding plate 458 to slide to the right side, and the blocking rod 4510 blocks the middle part of the front side of the isolating switch, so that the isolating switch is prevented from switching on and off, and a fire disaster caused by electric arc is avoided;
step two, when the breaker 2 needs to be disassembled and assembled, the shifting block 36 is lifted up, the moving plate 33 is promoted to drive the positioning plate 35 to move upwards, the first spring 34 is extruded until the positioning plate 35 is separated from the positioning pin 5, the breaker 2 can be taken down, the downward elastic force is applied to the moving plate 33 through the elastic force of the first spring 34, the positioning plate 35 can be stably sleeved on the positioning pin 5, the positioning of the breaker 2 is realized, the disassembly and assembly of the breaker 2 can be realized only by lifting the shifting block 36, time and labor are saved, and the phenomenon that the breaker 2 is moved to touch surrounding elements is avoided;
step three, when the height of the blocking rod 4510 needs to be adjusted according to the volume of the disconnecting switch, the cover plate 456 is opened, the driving bolt 454 is screwed down from the positioning screw hole 453, the screwing positioning bolt 44 is far away from the sliding rail 42, the sliding sleeve 43 slides on the sliding rail 42 through the sliding sleeve 43, the moving box 451 can be driven to move up and down until the blocking rod 4510 reaches the designated height, the screwing positioning bolt 44 locks the sliding sleeve 43, the moving box 451 stays at the current height, and then the driving bolt 454 is screwed into the required positioning screw hole 453 to ensure the normal left and right movement of the sliding plate 458 and achieve height adjustment of the blocking rod 4510, so that the disconnecting switches with different volumes can be limited, and the disconnecting switch is prevented from being operated by mistake when the breaker 2 is switched on.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a two moulded case circuit breakers of low pressure are with interlocking device, includes moulded case (1) and circuit breaker (2), its characterized in that: the left side and the right side of an inner cavity of the plastic shell (1) are respectively provided with an interlocking mechanism (4) and a positioning mechanism (3), the upper end and the lower end of the left side and the lower end of the right side of the circuit breaker (2) are respectively provided with a positioning pin (5), the circuit breaker (2) is inserted into the inner cavity of the positioning mechanism (3), the positioning pins (5) are clamped with the positioning mechanism (3) to position the circuit breaker (2), the bottom end of the right side of the interlocking mechanism (4) is provided with one end of a connecting rod (6), and the other end of the connecting rod (6) is connected with a brake opening and closing rod of the circuit breaker (2);
positioning mechanism (3) are including installing frame (31) at moulded case (1) inner chamber, and frame (31) are the U-shaped, preformed hole (32) have been seted up at the right side wall middle part of frame (31), the inner chamber of frame (31) is pegged graft and is had gliding movable plate (33) from top to bottom, the equal joint in top left and right sides of movable plate (33) has the one end of first spring (34), and the other end of first spring (34) and the inner chamber top joint of frame (31), locating plate (35) are all installed at both ends about inner wall about movable plate (33), and locating plate (35) cup joint and fix a position circuit breaker (2) at locating pin (5) outer wall, shifting block (36) that run through preformed hole (32) inner chamber are installed on the right side of movable plate (33).
2. The interlocking mechanism for a low-voltage double molded case circuit breaker according to claim 1, wherein: the positioning plate (35) is U-shaped, and the depth of the inner cavity is greater than the diameter of the positioning pin (5).
3. The interlocking mechanism for a low-voltage double molded case circuit breaker according to claim 1, wherein: interlocking device (4) are including installing drive assembly (41) at moulding shell (1) left side wall, slide rail (42) are installed along upper and lower direction to the top rear side of drive assembly (41), and slide rail (42) top runs through the upper surface of moulding shell (1), the outer wall of slide rail (42) has cup jointed sliding sleeve (43) that can slide from top to bottom, the front side top spiro union of sliding sleeve (43) has positioning bolt (44), and positioning bolt (44) rear side and slide rail (42) front side contact to sliding sleeve (43) location, the front side bottom of sliding sleeve (43) is installed and is blockked subassembly (45).
4. The interlock mechanism for a low-voltage dual molded case circuit breaker according to claim 3, wherein: drive assembly (41) is including installing shell (411) that mould shell (1) inner chamber left side, the inner chamber front side of shell (411) is followed upper and lower direction and is pegged graft and have carriage release lever (412), and carriage release lever (412) are the rectangle, there is the one end of pars contractilis (413) at the inner chamber rear side middle part of shell (411) through the round pin hub connection, and the other end of pars contractilis (413) and the bottom of carriage release lever (412) are through the round pin hub connection, the one end of connecting rod (414) is still rotatably installed in pars contractilis (413) and the junction of carriage release lever (412), and the other end and the left end installation of connecting rod (6) of connecting rod (414), rack (415) are installed to the top of carriage release lever (412).
5. The interlocking mechanism for a low-voltage double molded case circuit breaker according to claim 3, wherein: the blocking assembly (45) comprises a moving box (451) arranged at the bottom end of the front side of the sliding sleeve (43), the top end of a rack (415) penetrates through the upper surface of the moving box (451), a rotating disc (452) is arranged in an inner cavity of the moving box (451) through a support, positioning screw holes (453) are formed in the outer edge of the front side of the rotating disc (452) along the circumferential direction, driving bolts (454) are screwed in the inner cavity of the positioning screw holes (453), a gear (455) rotating coaxially is arranged on the front side of the rotating disc (452), the gear (455) is meshed and connected with the rack (415), a cover plate (456) is arranged on the front side of the moving box (451), a limiting sleeve (457) is arranged on the right side of the moving box (451), a sliding plate (458) capable of sliding left and right is inserted in the inner cavity of the limiting sleeve (457), and a sliding groove (459) is formed in the left and right directions at the left end of the front side of the sliding plate (458), and the upper end and the lower end of the right side wall of the sliding plate (458) are provided with stop levers (4510).
6. The interlocking mechanism for a low-voltage double molded case circuit breaker according to claim 5, wherein: the length of the sliding groove (459) is larger than the diameter of the circular track for the driving bolt (454) to move by the rotating disc (452).
7. The interlock mechanism for a low-voltage dual molded case circuit breaker according to claim 4, wherein: the telescopic part (413) comprises a sleeve (4131) connected to the rear side of an inner cavity of the shell (411) through a pin shaft, a second spring (4132) is inserted into the inner cavity of the sleeve (4131), one end of a push rod (4133) is inserted into the bottom end of the inner cavity of the sleeve (4131), and the other end of the push rod (4133) is connected with the bottom end of the moving rod (412) through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210765112.0A CN114843147B (en) | 2022-07-01 | 2022-07-01 | Interlocking mechanism for low-voltage double-plastic-shell circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210765112.0A CN114843147B (en) | 2022-07-01 | 2022-07-01 | Interlocking mechanism for low-voltage double-plastic-shell circuit breaker |
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| Publication Number | Publication Date |
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| CN114843147A true CN114843147A (en) | 2022-08-02 |
| CN114843147B CN114843147B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210765112.0A Active CN114843147B (en) | 2022-07-01 | 2022-07-01 | Interlocking mechanism for low-voltage double-plastic-shell circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118098893A (en) * | 2024-04-17 | 2024-05-28 | 帝凯(福建)电力成套设备有限公司 | Electrical protection interlocking device of high-voltage cabinet circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN213958878U (en) * | 2020-11-17 | 2021-08-13 | 中鸿泰电气有限公司 | Explosion-proof moulded case circuit breaker structure |
| CN113708283A (en) * | 2021-10-29 | 2021-11-26 | 常州平川飞耀电气有限公司 | Interlocking device of high-voltage switch equipment mechanism |
| CN113782397A (en) * | 2021-11-11 | 2021-12-10 | 常州平川飞耀电气有限公司 | Control device of high-voltage switch |
| CN215417982U (en) * | 2021-05-06 | 2022-01-04 | 江苏华唐电器有限公司 | Interlocking mechanism for circuit breaker operating mechanism, three-position switch and ring main unit |
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2022
- 2022-07-01 CN CN202210765112.0A patent/CN114843147B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213958878U (en) * | 2020-11-17 | 2021-08-13 | 中鸿泰电气有限公司 | Explosion-proof moulded case circuit breaker structure |
| CN215417982U (en) * | 2021-05-06 | 2022-01-04 | 江苏华唐电器有限公司 | Interlocking mechanism for circuit breaker operating mechanism, three-position switch and ring main unit |
| CN113708283A (en) * | 2021-10-29 | 2021-11-26 | 常州平川飞耀电气有限公司 | Interlocking device of high-voltage switch equipment mechanism |
| CN113782397A (en) * | 2021-11-11 | 2021-12-10 | 常州平川飞耀电气有限公司 | Control device of high-voltage switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118098893A (en) * | 2024-04-17 | 2024-05-28 | 帝凯(福建)电力成套设备有限公司 | Electrical protection interlocking device of high-voltage cabinet circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN114843147B (en) | 2022-10-04 |
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