CN114664608B - Circuit breaker with combined protection structure - Google Patents
Circuit breaker with combined protection structure Download PDFInfo
- Publication number
- CN114664608B CN114664608B CN202210332243.XA CN202210332243A CN114664608B CN 114664608 B CN114664608 B CN 114664608B CN 202210332243 A CN202210332243 A CN 202210332243A CN 114664608 B CN114664608 B CN 114664608B
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- main body
- frame
- connecting plate
- positioning
- control switch
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- 230000004224 protection Effects 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000009979 protective mechanism Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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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
- H01H71/1054—Means for avoiding unauthorised release
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Breakers (AREA)
Abstract
The invention discloses a circuit breaker with a combined protection structure, which relates to the field of circuit breakers, and comprises the following components in part by weight; a breaker main body; a control switch; a bolt; positioning a pressing plate; a protective mechanism; and the limiting mechanisms are distributed at the top of the positioning pressing plate and one end of the breaker main body and are used for increasing the stability of connection between an external wire and the breaker main body. According to the invention, the limiting mechanism is arranged, when the breaker main body normally operates, the top of the movable frame is attached to the bottom of the first straight rack, so that the positioning pressing plate is limited, the stability of connection between the lead and the breaker main body is increased, when a circuit connected with the breaker main body is in a state, the control switch drives the straight gear to rotate through the rotating wheel, and the straight gear drives the second straight rack to move when rotating, so that the positioning pressing plate can lose limitation, and then the positioning pressing plate can be moved through rotating the bolt, so that convenience is provided for maintenance of equipment.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to a circuit breaker with a combined protection structure.
Background
The circuit breaker is a switching device capable of switching on and off current under normal loop conditions and switching on and off current under abnormal loop conditions within a specified time, the circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, the high-voltage boundary line is more fuzzy, the circuit breaker is generally called a high-voltage electric appliance with the voltage higher than 3kV, the circuit breaker can be used for distributing electric energy, an asynchronous motor is not frequently started, protection is carried out on a power supply circuit, a motor and the like, the circuit can be automatically cut off when serious overload, short circuit, undervoltage and other faults occur on the circuit breaker, the function of the circuit breaker is equivalent to the combination of a fuse type switch, an undervoltage thermal relay and the like, and parts are not required to be changed after breaking fault current, so that the circuit breaker has been widely applied at present.
When the circuit breaks down, the control switch on the circuit breaker is disconnected, and then the staff needs to detect the circuit, and in the process, the staff needs to limit the control switch through the clamping block, so that other people can be prevented from opening the switch by mistake when detecting the circuit, and the safety of the staff on equipment maintenance is improved, but in the process, the control switch is troublesome, a large amount of time can be wasted when being limited, and the circuit on two sides of the circuit breaker cannot be limited, so that the stability of circuit connection is poor, and the use of equipment is affected.
Disclosure of Invention
The invention aims at: in order to solve the problems that the control switch is inconvenient to limit when being disconnected and the stability of line connection is poor, the circuit breaker with the combined protection structure is provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: a circuit breaker having a combined protective structure, comprising;
a breaker main body;
the control switch is arranged at one end of the breaker main body;
the bolts are arranged at the top and the bottom of the breaker main body;
the positioning pressing plate is arranged at one end of the bolt;
the protection mechanisms are distributed on the outer side of the control switch and one end of the breaker main body and are used for limiting the control switch;
and the limiting mechanisms are distributed at the top of the positioning pressing plate and one end of the breaker main body and are used for increasing the stability of connection between an external wire and the breaker main body.
As still further aspects of the invention: the protection mechanism comprises a connecting plate, a rotating rod, a locating rack, a frame, a fixed pulley, a cam, a limiting groove, a telescopic spring, a rotating wheel and a torsion spring, wherein the connecting plate is fixed at one end of the main body of the circuit breaker and is positioned at the inner side of the frame, the rotating rod is arranged at the top of the connecting plate and is rotatably sleeved with the two ends of the connecting plate, the torsion spring is arranged in the connecting plate and is sleeved with the outer side of the rotating rod, the locating rack is arranged at the top of the connecting plate and penetrates through the bottom of the connecting plate, the frame is fixed at the top of the locating rack and is positioned at the outer side of the rotating rod, the fixed pulley is arranged on the inner wall of the frame, the cam is arranged at the outer side of the rotating rod and is positioned at the inner side of the frame, the telescopic spring is fixed at the bottom of the connecting plate and is positioned at one side of the locating rack, and the limiting groove is arranged at one side of the control switch.
As still further aspects of the invention: the limiting mechanism comprises a connecting rod, a first straight rack, a limiting block, a movable frame, a straight gear and a second straight rack, wherein the connecting rod is arranged at one end of the positioning pressing plate, the first straight rack is fixed at one end of the connecting rod, the limiting block is fixed at one end of the circuit breaker main body and is located below the first straight rack, the movable frame is arranged at the outer side of the limiting block, the straight gear is fixed at one side of the rotating wheel, and the second straight rack is fixed at the bottom of the movable frame and is located at the outer side of the straight gear.
As still further aspects of the invention: the bottom of the locating rack is matched with the size of the limiting groove, and the bottom of the locating rack is provided with balls.
As still further aspects of the invention: the inner side of the connecting plate is provided with a sliding groove matched with the top of the locating rack, and the movable distance of the locating rack relative to the connecting plate is slightly larger than the depth of the limiting groove.
As still further aspects of the invention: the latch of second straight rack one end with the latch in straight gear outside meshes, the one end of movable rack with the bottom latch of first straight rack meshes, the inboard of movable rack be provided with the spout that the stopper agrees with mutually.
As still further aspects of the invention: the bottom of bolt with the location clamp plate passes through the bearing and rotates to be connected, the installation draw-in groove inner wall at locating clamp plate and circuit breaker main part top is laminated mutually.
As still further aspects of the invention: the number of the locating frames is equal to that of the control switches, and the locating frames are located right above the control switches.
As still further aspects of the invention: and two ends of the telescopic spring are respectively welded at the bottom of the connecting plate and one side of the locating frame.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up stop gear, when the circuit breaker main part normally operates, the top of movable rack is laminated with the bottom of first straight rack to this comes to carry out spacingly to the location clamp plate, thereby increased the stability of being connected between wire and the circuit breaker main part, when the circuit that the circuit breaker main part is connected appears the situation, control switch can drive the straight gear through the runner and rotate, the straight gear can drive the second straight rack and remove when rotating, thereby alright make the location clamp plate lose spacingly, afterwards alright make the location clamp plate remove through rotating the bolt, thereby provide convenience for the maintenance of equipment;
2. through setting up protection machanism, the bottom of locating rack and the outer wall laminating of runner when equipment carries out normal operating, the telescopic spring of this moment is in the shrink state, when the circuit appears the situation and leads to control switch to swing, can drive the runner and rotate, limit slot just can align with the bottom of locating rack when control switch changes to the minimum, the bottom of locating rack just can detain in the limit slot under telescopic spring's effect this moment, so alright carry out spacingly to control switch, the bottom of fixed pulley and the outside laminating of cam this moment, thereby prevent that other personnel from touching by mistake and causing the circuit connection when the line overhauls, thereby the protection effect of equipment has been increased.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1A in accordance with the present invention;
FIG. 3 is an enlarged view of the invention at B in FIG. 1;
FIG. 4 is a schematic view of a positioning frame according to the present invention;
FIG. 5 is a schematic diagram of the connection of the rotating rod to the connecting plate according to the present invention;
FIG. 6 is a schematic view of the structure of the rotor of the present invention;
FIG. 7 is a schematic diagram of the connection of the connecting rod and the positioning platen according to the present invention.
In the figure: 1. a breaker main body; 2. a control switch; 3. a bolt; 4. positioning a pressing plate; 5. a protective mechanism; 501. a connecting plate; 502. a rotating rod; 503. a positioning frame; 504. a frame; 505. a fixed pulley; 506. a cam; 507. a limit groove; 508. a telescopic spring; 509. a rotating wheel; 510. a torsion spring; 6. a limiting mechanism; 601. a connecting rod; 602. a first straight rack; 603. a limiting block; 604. a moving rack; 605. spur gears; 606. and a second spur rack.
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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 7, in an embodiment of the present invention, a circuit breaker with a combined protection structure includes;
a breaker main body 1;
a control switch 2, the control switch 2 being mounted at one end of the breaker body 1;
bolts 3, the bolts 3 are arranged at the top and the bottom of the breaker main body 1;
the positioning pressing plate 4 is arranged at one end of the bolt 3;
the protection mechanisms 5 are distributed on the outer side of the control switch 2 and one end of the breaker main body 1 and are used for limiting the control switch 2;
and the limiting mechanisms 6 are distributed at the top of the positioning pressing plate 4 and one end of the breaker main body 1 and are used for increasing the stability of connection between an external wire and the breaker main body 1.
In this embodiment, when the circuit is operating normally, the positioning pressing plate 4 can be limited by the limiting mechanism 6, so as to increase the stability of the connection between the external lead and the breaker main body 1, and when the circuit is in a status, the control switch 2 can be limited by the protecting mechanism 5 when the control switch 2 swings downwards, and meanwhile, the positioning pressing plate 4 can lose the limit, so that convenience is provided for the maintenance of the circuit.
Referring to fig. 1, 2, 4, 5 and 6, the protection mechanism 5 includes a connection plate 501, a rotation rod 502, a positioning frame 503, a frame 504, a fixed pulley 505, a cam 506, a limit groove 507, a telescopic spring 508, a rotation wheel 509, and a torsion spring 510, wherein the connection plate 501 is fixed at one end of the circuit breaker main body 1 and is located above the control switch 2, the rotation rod 502 is disposed at the top of the connection plate 501 and rotationally sleeved with two ends of the connection plate 501, the torsion spring 510 is disposed inside the connection plate 501 and sleeved outside the rotation rod 502, the positioning frame 503 is disposed at the top of the connection plate 501 and penetrates to the bottom of the connection plate 501, the frame 504 is fixed at the top of the positioning frame 503 and is located outside the rotation rod 502, the fixed pulley 505 is disposed on the inner wall of the frame 504, the cam 506 is disposed outside the rotation rod 502 and is located inside the frame 504, the telescopic spring 508 is fixed at the bottom of the connection plate 501 and is located at one side of the positioning frame 503, the rotation wheel 509 is disposed at one side of the control switch 2, and the limit groove 507 is disposed at the outer side of the rotation wheel 509.
In this embodiment, when the equipment is operated normally, the bottom of the locating frame 503 is attached to the outer wall of the rotating wheel 509, the telescopic spring 508 is in a contracted state, when the line is in a condition that causes the control switch 2 to swing, the rotating wheel 509 is driven to rotate, when the control switch 2 rotates to the lowest position, the limit groove 507 is aligned with the bottom of the locating frame 503, at this moment, the bottom of the locating frame 503 is buckled into the limit groove 507 under the action of the telescopic spring 508, so that the control switch 2 can be limited, at this moment, the bottom of the fixed pulley 505 is attached to the outer side of the cam 506, so that the line connection caused by the mistaken touch of other personnel is prevented, the protection effect of the equipment is increased, after the line maintenance is completed, the rotating rod 502 is rotated, at this moment, the torsion spring 510 is wound, so that the cam 506 is rotated, so that the frame 504 is jacked up, and therefore, all the locating frames 503 are moved to the highest position, the bottom of the locating frame 503 is separated from the limit groove 507, the control switch 2 is buckled into the limit groove 507 under the action of the telescopic spring 508, the torsion force is released under the action of the control switch 2, the control switch 508 is enabled to be restored under the action of the spring 508, and the rest of the telescopic spring 508 is restored, so that the line is conveniently restored under the action of the condition that the control switch 508 is not is restored under the condition that the effect of the control of the locating frame 508, and the line is restored under the condition that the effect of the control of the limit groove 508 is continuously, and the convenience is restored.
Referring to fig. 1, 3, 6 and 7, the limiting mechanism 6 includes a connecting rod 601, a first straight rack 602, a limiting block 603, a moving rack 604, a straight gear 605 and a second straight rack 606, wherein the connecting rod 601 is disposed at one end of the positioning platen 4, the first straight rack 602 is fixed at one end of the connecting rod 601, the limiting block 603 is fixed at one end of the breaker main body 1 and is located below the first straight rack 602, the moving rack 604 is disposed at the outer side of the limiting block 603, the straight gear 605 is fixed at one side of the rotating wheel 509, and the second straight rack 606 is fixed at the bottom of the moving rack 604 and is located at the outer side of the straight gear 605.
In this embodiment, when the breaker main body 1 operates normally, the top of the moving frame 604 is attached to the bottom of the first straight rack 602, so as to limit the positioning pressing plate 4, thereby increasing the stability of connection between the wire and the breaker main body 1, when the circuit connected with the breaker main body 1 is in a state, the control switch 2 swings downward under the action of the internal element of the breaker main body 1, so as to achieve a short circuit effect, in this process, the control switch 2 drives the spur gear 605 to rotate through the rotating wheel 509, the spur gear 605 drives the second spur rack 606 to move when rotating, so that the moving frame 604 at this point moves relatively, so that one end of the moving frame 604 is separated from the first straight rack 602, thereby the positioning pressing plate 4 can lose the limit, and then the positioning pressing plate 4 can move through rotating the bolt 3, thereby providing convenience for maintenance of equipment.
Referring to fig. 3, the bottom of the positioning frame 503 is matched with the size of the limiting groove 507, and the bottom of the positioning frame 503 is provided with balls.
In this embodiment, by setting the structure to reduce the friction between the bottom of the positioning frame 503 and the rotating wheel 509, when the bottom of the positioning frame 503 is aligned with the limiting groove 507 outside the rotating wheel 509, the positioning frame 503 will be buckled into the limiting groove 507 under the action of the telescopic spring 508.
Referring to fig. 2 and 3, a sliding groove matching with the top of the positioning frame 503 is disposed on the inner side of the connecting plate 501, and the movable distance of the positioning frame 503 relative to the connecting plate 501 is slightly greater than the depth of the limiting groove 507.
In this embodiment, the structure is provided to enable the cam 506 to rotate to drive the fixed pulley 505 attached to the cam 506 to move upwards, so that the frame 504 drives the positioning frame 503 to move upwards, and one end of the positioning frame 503 is separated from the limiting groove 507.
Referring to fig. 1 and 3, the latch at one end of the second straight rack 606 is engaged with the latch at the outer side of the straight gear 605, one end of the moving frame 604 is engaged with the bottom latch of the first straight rack 602, and a sliding slot engaged with the limiting block 603 is disposed at the inner side of the moving frame 604.
In this embodiment, when the spur gear 605 rotates along with the swing of the control switch 2 by providing this structure, the moving frames 604 are relatively moved by the second spur rack 606, so that one ends of the two moving frames 604 are separated from the first spur rack 602, at this time, the connecting rod 601 loses its restriction, and then the bolt 3 is screwed to move the positioning platen 4.
Referring to fig. 1 and 7, the bottom of the bolt 3 is rotatably connected with the positioning pressing plate 4 through a bearing, and the positioning pressing plate 4 is attached to the inner wall of the mounting slot at the top of the breaker main body 1.
In this embodiment, the positioning platen 4 drives the connecting rod 601 to move up and down when the bolt 3 rotates by providing this structure.
Referring to fig. 1, the number of positioning frames 503 is equal to the number of control switches 2 and is located right above the control switches 2.
In the present embodiment, the positioning frames 503 are configured to correspond to the control switches 2 one by one, so as to limit the control switches 2 on the breaker main body 1.
Referring to fig. 2, two ends of the extension spring 508 are welded to the bottom of the connecting plate 501 and one side of the positioning frame 503, respectively.
In this embodiment, the positioning frame 503 is moved upward by the structure to press the extension spring 508, and when the limiting groove 507 is aligned with the bottom of the positioning frame 503, the extension spring 508 is restored, so that the bottom of the positioning frame 503 can be buckled into the limiting groove 507.
The working principle of the invention is as follows: when the equipment is in normal operation, the bottom of the positioning frame 503 is attached to the outer wall of the rotating wheel 509, the telescopic spring 508 is in a contracted state, the top of the moving frame 604 is attached to the bottom of the first straight rack 602, so that the positioning pressing plate 4 is limited, the stability of connection between a wire and the breaker main body 1 is increased, when the condition of a circuit appears, the control switch 2 is caused to swing, the rotating wheel 509 is driven to rotate, when the control switch 2 rotates to the lowest position, the limiting groove 507 is aligned with the bottom of the positioning frame 503, at the moment, the bottom of the positioning frame 503 is buckled into the limiting groove 507 under the action of the telescopic spring 508, thus the control switch 2 can be limited, at the moment, the bottom of the fixed pulley 505 is attached to the outer side of the cam 506, so that the circuit connection caused by error collision of other personnel during the circuit maintenance is prevented, thereby increasing the protection effect of the equipment, the control switch 2 drives the spur gear 605 to rotate through the rotating wheel 509 in the process, the spur gear 605 drives the second spur rack 606 to move when rotating, so that the moving rack 604 at the position moves relatively, one end of the moving rack 604 is separated from the first spur rack 602, thereby enabling the positioning pressing plate 4 to lose limit, then the positioning pressing plate 4 can be moved through rotating the bolt 3, thereby providing convenience for maintenance of the equipment, after finishing maintenance of the line, the rotating rod 502 is rotated through rotating the torsion spring 510, the torsion spring 510 is wound, thereby rotating the cam 506, thereby jacking up the frame 504, so that all the positioning racks 503 can be moved to the highest position, thereby enabling the bottom of the positioning rack 503 to be separated from the limit groove 507, pushing the control switch 2, and loosening the rotating rod 502 after the control switch 2 is restored, therefore, the rotating rod 502 can be restored under the action of the torsion spring 510, the locating frame 503 can be tightly attached to the outer side of the rotating wheel 509 under the action of the telescopic spring 508, and the locating frame 503 above the unrecoverable control switch 2 can be buckled into the limiting groove 507 again under the action of the telescopic spring 508, so that the rest control switches 2 are continuously limited, thereby providing convenience for line overhaul and increasing the overhaul safety.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. A circuit breaker having a combined protective structure, comprising;
a breaker body (1);
a control switch (2), wherein the control switch (2) is installed at one end of the breaker main body (1);
the bolt (3) is arranged at the top and the bottom of the breaker main body (1);
the positioning pressing plate (4) is arranged at one end of the bolt (3);
the protection mechanisms (5) are distributed on the outer side of the control switch (2) and one end of the breaker main body (1) and are used for limiting the control switch (2);
the limiting mechanisms (6) are distributed at the top of the positioning pressing plate (4) and one end of the breaker main body (1) and are used for improving the stability of connection between an external wire and the breaker main body (1);
the protection mechanism (5) comprises a connecting plate (501), a rotating rod (502), a locating frame (503), a frame (504), a fixed pulley (505), a cam (506), a limiting groove (507), a telescopic spring (508), a rotating wheel (509) and a torsion spring (510), wherein the connecting plate (501) is fixed at one end of the main body (1) of the circuit breaker and is positioned above the control switch (2), the rotating rod (502) is arranged at the top of the connecting plate (501) and is rotatably sleeved with two ends of the connecting plate (501), the torsion spring (510) is arranged in the connecting plate (501) and sleeved on the outer side of the rotating rod (502), the locating frame (503) is arranged at the top of the connecting plate (501) and penetrates to the bottom of the connecting plate (501), the frame (504) is fixed at the top of the locating frame (503) and is positioned at the outer side of the rotating rod (502), the fixed pulley (505) is arranged on the inner wall of the frame (504), the cam (506) is arranged at the outer side of the connecting plate (501) and is rotatably sleeved at two ends of the connecting plate (501), the rotating wheel (509) is arranged on one side of the control switch (2), and the limit groove (507) is arranged on the outer side of the rotating wheel (509);
the limiting mechanism (6) comprises a connecting rod (601), a first straight rack (602), a limiting block (603), a moving frame (604), a straight gear (605) and a second straight rack (606), wherein the connecting rod (601) is arranged at one end of the positioning pressing plate (4), the first straight rack (602) is fixed at one end of the connecting rod (601), the limiting block (603) is fixed at one end of the breaker main body (1) and is positioned below the first straight rack (602), the moving frame (604) is arranged at the outer side of the limiting block (603), the straight gear (605) is fixed at one side of the rotating wheel (509), and the second straight rack (606) is fixed at the bottom of the moving frame (604) and is positioned at the outer side of the straight gear (605);
the latch of second straight rack (606) one end with the latch of straight gear (605) outside meshes, the one end of movable rack (604) with the bottom latch of first straight rack (602) meshes, the inboard of movable rack (604) be provided with stopper (603) looks matched with spout.
2. The circuit breaker with the combined protection structure according to claim 1, wherein the bottom of the positioning frame (503) is matched with the size of the limiting groove (507), and balls are arranged at the bottom of the positioning frame (503).
3. The circuit breaker with the combined protection structure according to claim 1, wherein a sliding groove matched with the top of the positioning frame (503) is arranged on the inner side of the connecting plate (501), and the movable distance of the positioning frame (503) relative to the connecting plate (501) is slightly larger than the depth of the limiting groove (507).
4. The circuit breaker with the combined protection structure according to claim 1, wherein the bottom of the bolt (3) is rotatably connected with the positioning pressing plate (4) through a bearing, and the positioning pressing plate (4) is attached to the inner wall of the mounting clamping groove at the top of the circuit breaker main body (1).
5. A circuit breaker with combined protection structure according to claim 1, characterized in that the number of positioning frames (503) is equal to the number of control switches (2) and is located directly above the control switches (2).
6. The circuit breaker with the combined protection structure according to claim 1, wherein two ends of the telescopic spring (508) are welded to the bottom of the connecting plate (501) and one side of the positioning frame (503) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210332243.XA CN114664608B (en) | 2022-03-31 | 2022-03-31 | Circuit breaker with combined protection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210332243.XA CN114664608B (en) | 2022-03-31 | 2022-03-31 | Circuit breaker with combined protection structure |
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| CN114664608A CN114664608A (en) | 2022-06-24 |
| CN114664608B true CN114664608B (en) | 2024-04-05 |
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| US4101744A (en) * | 1976-10-22 | 1978-07-18 | Gould Inc. | Circuit breaker racking mechanism for drawout type switchgear |
| CN210349728U (en) * | 2019-07-31 | 2020-04-17 | 南安欣久商贸有限公司 | Spliced multi-pole circuit breaker |
| CN210577029U (en) * | 2019-11-04 | 2020-05-19 | 青岛科嘉电气工程有限公司 | Switch cabinet operation locking mechanism |
| CN212570898U (en) * | 2020-07-16 | 2021-02-19 | 泰兴市盛源电器有限公司 | Interlocking mechanism for circuit breaker |
| WO2022023354A1 (en) * | 2020-07-28 | 2022-02-03 | Siemens Aktiengesellschaft | Residual current fault indicator mechanism and circuit breaker with residual current fault indicator mechanism |
| CN213150701U (en) * | 2020-10-27 | 2021-05-07 | 南京昊福淇电气设备有限公司 | Breaker closing protection device |
| CN213124343U (en) * | 2020-10-30 | 2021-05-04 | 天津惠凯森科技有限公司 | Novel circuit breaker extends mechanism |
| CN112908791A (en) * | 2021-01-06 | 2021-06-04 | 加西亚电子电器股份有限公司 | Intelligent circuit breaker |
| CN113394060A (en) * | 2021-05-22 | 2021-09-14 | 赵帆帆 | High-voltage direct-current circuit breaker |
| CN215578390U (en) * | 2021-07-09 | 2022-01-18 | 山东宏宇天成工程技术有限公司 | Circuit breaker of intelligent power consumption management |
| CN216015229U (en) * | 2021-10-12 | 2022-03-11 | 中能智控有限公司 | Circuit breaker with protection function |
| CN114220710A (en) * | 2021-12-20 | 2022-03-22 | 济南市中恒光机电技术中心 | Circuit breaker |
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| CN114664608A (en) | 2022-06-24 |
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