CN114664608A - Circuit breaker with combined protection structure - Google Patents
Circuit breaker with combined protection structure Download PDFInfo
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- CN114664608A CN114664608A CN202210332243.XA CN202210332243A CN114664608A CN 114664608 A CN114664608 A CN 114664608A CN 202210332243 A CN202210332243 A CN 202210332243A CN 114664608 A CN114664608 A CN 114664608A
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- circuit breaker
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 2
- 230000001681 protective effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
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- 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 a circuit breaker body; a circuit breaker main body; a control switch; a bolt; positioning a pressing plate; a protection mechanism; and the limiting mechanisms are distributed at the top of the positioning pressing plate and one end of the breaker main body and used for increasing the stability of connection between external leads and the breaker main body. According to the invention, by arranging the limiting mechanism, 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 can drive the straight rack to rotate through the rotating wheel, the straight rack can drive the second straight rack to move when rotating, so that the positioning pressing plate can lose the limiting function, and then the positioning pressing plate can be moved through the rotating bolt, so that convenience is provided for the 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 closing, bearing and opening a current under a normal circuit condition and closing, bearing and opening a current under an abnormal circuit condition within a specified time, and is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the using range, the dividing of the high-voltage and low-voltage boundary lines is fuzzy, the circuit breaker is generally called as a high-voltage electrical appliance with the voltage of more than 3kV, the circuit breaker can be used for distributing electric energy, an asynchronous motor is not frequently started, a power supply circuit, the motor and the like are protected, the circuit can be automatically cut off when faults such as serious overload, short circuit, undervoltage and the like occur, the function of the circuit breaker is equivalent to the combination of a fuse type switch and an over-under-heat relay and the like, and parts are generally not required to be changed after the fault current is broken, and the circuit breaker is widely applied at present.
Control switch disconnection on the circuit breaker when the circuit breaks down, the staff need detect the circuit this moment, the staff need carry on spacingly to control switch through the fixture block at this in-process staff, prevent that other people from opening switch by mistake when detecting the circuit, increase the security of staff to overhaul of equipments with this, but this in-process is comparatively troublesome, can waste a large amount of time when spacing to control switch, and can't be spacing to the circuit of circuit breaker both sides, lead to line connection's stability relatively poor, thereby influence the use of equipment.
Disclosure of Invention
The invention aims to: in order to solve the problem that the stability of limiting and line connection is poor when the control switch is disconnected, the circuit breaker with the combined protection structure is provided.
In order to achieve the purpose, the invention provides the following technical scheme: a circuit breaker with a composite shield structure comprising;
a circuit breaker main body;
a control switch installed at one end of the circuit breaker main body;
bolts disposed at the top and bottom of the breaker 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 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 used for increasing the stability of connection between external leads and the breaker main body.
As a still further scheme of the invention: the protection mechanism comprises a connecting plate, a rotating rod, a positioning 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 breaker main body and is positioned above the control switch, 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 outside the rotating rod, the positioning frame is arranged at the top of the connecting plate and penetrates to the bottom of the connecting plate, the frame is fixed at the top of the positioning frame and is positioned outside 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 inside the frame, the telescopic spring is fixed at the bottom of the connecting plate and is positioned on one side of the positioning frame, the runner set up in one side of control switch, the spacing groove set up in the outside of runner.
As a still further scheme of the invention: stop gear is including connecting rod, first rack, stopper, removal frame, straight-teeth gear, second straight-teeth rack, the connecting rod set up in positioning pressure plate's one end, first rack is fixed in the one end of connecting rod, the stopper is fixed in the one end of circuit breaker main part, and be located the below of first rack, remove the frame set up in the outside of stopper, the straight-teeth gear is fixed in one side of runner, the second straight-teeth rack is fixed in remove the bottom of frame, and be located the outside of straight-teeth gear.
As a still further scheme of the invention: the bottom of the positioning frame is matched with the size of the limiting groove, and the bottom of the positioning frame is provided with a ball.
As a still further scheme of the invention: the inner side of the connecting plate is provided with a sliding groove matched with the top of the positioning frame, and the movable distance of the positioning frame relative to the connecting plate is slightly larger than the depth of the limiting groove.
As a still further scheme of the invention: the rack is characterized in that the latch at one end of the second straight rack is meshed with the latch at the outer side of the straight gear, one end of the moving rack is meshed with the latch at the bottom of the first straight rack, and a sliding groove matched with the limiting block is formed in the inner side of the moving rack.
As a still further scheme of the invention: the bottom of bolt with positioning pressing plate passes through the bearing and rotates and be connected, positioning pressing plate and the installation card inslot wall at circuit breaker main part top laminate mutually.
As a still further scheme of the invention: the number of the positioning frames is equal to that of the control switches, and the positioning frames are located right above the control switches.
As a still further scheme 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 positioning frame.
Compared with the prior art, the invention has the beneficial effects that:
1. by arranging the limiting mechanism, 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 a wire and the breaker main body is improved, when a circuit connected with the breaker main body is in a state, the control switch can drive the straight rack to rotate through the rotating wheel, the straight rack can drive the second straight rack to move when rotating, and therefore the positioning pressing plate can lose the limitation, and then the positioning pressing plate can be moved through the rotating bolt, so that convenience is brought to 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 operation, expanding spring at this moment is in the shrink state, when the situation appears in the circuit and leads to control switch to swing, can drive the runner and rotate, the spacing groove just can align with the bottom of locating rack when control switch rotates to the minimum, the bottom of locating rack just can be detained the spacing inslot under expanding spring's effect this moment, so alright carry on spacingly to control switch, the bottom of fixed pulley and the outside laminating of cam this moment, with this prevent that other personnel mistake from bumping and causing the line connection when overhauing the circuit by the staff, thereby the protecting effect of equipment has been increased.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
FIG. 3 is an enlarged view of the invention at B in FIG. 1;
FIG. 4 is a schematic structural diagram of the positioning frame of the present invention;
FIG. 5 is a schematic view of the connection between the rotating rod and the connecting plate according to the present invention;
FIG. 6 is a schematic view of the structure of the wheel of the present invention;
fig. 7 is a schematic view of the connection between the connecting rod and the positioning pressing plate according to the present invention.
In the figure: 1. a circuit breaker main body; 2. a control switch; 3. a bolt; 4. positioning a pressing plate; 5. a protection 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 limiting groove; 508. a tension 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 movable frame; 605. a spur gear; 606. and a second spur rack.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall 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, wherein the control switch 2 is arranged at one end 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 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 used for increasing the stability of connection between an external lead and the breaker main body 1.
In this embodiment, accessible stop gear 6 is spacing to positioning pressure plate 4 when the circuit normally operates to this stability that increases external wire and circuit breaker main part 1 and be connected, accessible protection machanism 5 is spacing to control switch 2 when the situation appears in the circuit and leads to control switch 2 to the downswing, can make positioning pressure plate 4 lose spacing simultaneously, provides convenience for the maintenance of circuit with this.
Please refer 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 slot 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 breaker body 1 and is located above the control switch 2, the rotation rod 502 is arranged at the top of the connection plate 501 and rotatably sleeved with two ends of the connection plate 501, the torsion spring 510 is arranged inside the connection plate 501 and sleeved outside the rotation rod 502, the positioning frame 503 is arranged 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 arranged at the inner wall of the frame 504, the cam 506 is arranged 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 turning wheel 509 is arranged at one side of the control switch 2, and the limiting groove 507 is arranged at the outer side of the turning wheel 509.
In this embodiment, when the apparatus normally operates, the bottom of the positioning frame 503 is attached to the outer wall of the rotating wheel 509, the retractable spring 508 is in a retracted state, when the circuit condition 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 limiting groove 507 is aligned with the bottom of the positioning frame 503, the bottom of the positioning frame 503 is buckled into the limiting groove 507 under the action of the retractable spring 508, so as to limit the control switch 2, the bottom of the fixed pulley 505 is attached to the outer side of the cam 506, thereby preventing the circuit connection caused by the mistaken touch of other personnel during the circuit maintenance by the staff, so as to increase the protection effect of the apparatus, after the circuit maintenance is completed, the rotating rod 502 is rotated, and the torsion spring 510 is wound, so as to rotate the cam 506, thereby jacking the frame 504, therefore, all the positioning frames 503 can be moved to the highest position, so that the control switch 2 can be pushed after the bottom of the positioning frame 503 is separated from the limiting groove 507, the rotating rod 502 is loosened after the control switch 2 is restored, the rotating rod 502 can be restored under the action of the torsion spring 510, at the moment, the positioning frame 503 is tightly attached to the outer side of the rotating wheel 509 under the action of the telescopic spring 508, and the positioning frame 503 above the control switch 2 which is not restored is buckled into the limiting groove 507 again under the action of the telescopic spring 508, so that the rest of the control switches 2 are continuously limited, convenience is provided for line maintenance, and the maintenance safety is improved.
Please refer to fig. 1, 3, 6, and 7, the limiting mechanism 6 includes a connecting rod 601, a first spur rack 602, a limiting block 603, a moving frame 604, a spur gear 605, and a second spur rack 606, the connecting rod 601 is disposed at one end of the positioning pressing plate 4, the first spur 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 spur rack 602, the moving frame 604 is disposed at an outer side of the limiting block 603, the spur gear 605 is fixed at one side of the rotating wheel 509, and the second spur rack 606 is fixed at a bottom of the moving frame 604 and is located at an outer side of the spur gear 605.
In this embodiment, when the breaker main body 1 normally operates, the top of the movable rack 604 is attached to the bottom of the first 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 to the breaker main body 1 is in a situation, the control switch 2 can swing downwards under the action of the internal components of the breaker main body 1, so as to achieve a short circuit effect, in this process, the control switch 2 can drive the spur gear 605 to rotate through the rotating wheel 509, the spur gear 605 can drive the second rack 606 to move when rotating, so that the movable rack 604 at this position relatively moves, so that one end of the movable rack 604 is separated from the first rack 602, thereby the positioning pressing plate 4 can lose the limit, and then the positioning pressing plate 4 can be moved by rotating the bolt 3, thereby providing convenience for maintenance of the apparatus.
Please refer 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 a ball.
In this embodiment, the friction between the bottom of the positioning frame 503 and the rotating wheel 509 is reduced by the structure, and 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 locked into the limiting groove 507 by the expanding spring 508.
Referring to fig. 2 and 3 again, the inner side of the connecting plate 501 is provided with a sliding slot matching with the top of the positioning frame 503, and the movable distance of the positioning frame 503 relative to the connecting plate 501 is slightly greater than the depth of the limiting slot 507.
In this embodiment, the cam 506 rotates to drive the fixed pulley 505 attached thereto to move upward, so that the frame 504 drives the positioning frame 503 to move upward, thereby separating one end of the positioning frame 503 from the limiting groove 507.
Please refer to fig. 1 and 3, the latch at one end of the second spur rack 606 is engaged with the latch at the outer side of the spur gear 605, one end of the movable rack 604 is engaged with the latch at the bottom of the first spur rack 602, and the inner side of the movable rack 604 is provided with a sliding slot engaged with the limiting block 603.
In the present embodiment, when the spur gear 605 rotates along with the swing of the control switch 2 by using the structure, the moving rack 604 moves relatively through the second spur rack 606, so that one end of the two moving racks 604 is separated from the first spur rack 602, at this time, the connecting rod 601 loses the restriction, and then the bolt 3 can be screwed to move the positioning pressure plate 4.
Please refer to fig. 1 and 7, the bottom of the bolt 3 is rotatably connected to 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 body 1.
In this embodiment, the positioning pressing plate 4 drives the connecting rod 601 to move up and down when the bolt 3 rotates by the structure.
Please refer to fig. 1, the number of the positioning frames 503 is equal to the number of the control switches 2, and the positioning frames are located right above the control switches 2.
In the present embodiment, the positioning frame 503 and the control switch 2 are in one-to-one correspondence by providing such a structure, so as to limit the control switch 2 on the circuit breaker main body 1.
Referring to fig. 2, two ends of the extension spring 508 are respectively welded to the bottom of the connection plate 501 and one side of the positioning frame 503.
In this embodiment, the telescopic spring 508 is pressed when the positioning frame 503 moves upward by providing this structure, and when the stopper groove 507 is aligned with the bottom of the positioning frame 503, the telescopic spring 508 is restored, whereby the bottom of the positioning frame 503 can be locked into the stopper groove 507.
The working principle of the invention is as follows: when the equipment normally operates, 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 contraction state, the top of the moving frame 604 is attached to the bottom of the first straight rack 602 to limit the positioning pressure plate 4, so that the stability of connection between the lead and the breaker main body 1 is improved, when the circuit condition causes the control switch 2 to swing, the rotating wheel 509 is driven to rotate, the limiting groove 507 is aligned with the bottom of the positioning frame 503 when the control switch 2 rotates to the lowest position, the bottom of the positioning frame 503 is buckled into the limiting groove 507 under the action of the telescopic spring 508, so that 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 as to prevent the circuit connection caused by mistaken collision of other personnel during circuit maintenance, thereby increasing the protection effect of the equipment, in the 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 rack 604 at the position moves relatively, one end of the moving rack 604 is separated from the first spur rack 602, the positioning pressure plate 4 can lose the limit position, then the positioning pressure plate 4 can move through rotating the bolt 3, thereby providing convenience for the maintenance of the equipment, the rotating rod 502 is rotated after the line inspection is finished, the torsion spring 510 is wound at the moment, the cam 506 is rotated, so as to jack up the frame 504, all the positioning racks 503 can be moved to the highest position, the control switch 2 can be pushed after the bottom of the positioning rack 503 is separated from the limit groove 507, the rotating rod 502 is released after the control switch 2 is restored, and therefore the rotating rod 502 can be restored under the action of the torsion spring 510, at this time, the positioning frame 503 will be tightly attached to the outer side of the rotating wheel 509 under the action of the telescopic spring 508, and the positioning frame 503 above the control switch 2 which is not restored will be buckled into the limiting groove 507 again under the action of the telescopic spring 508, so as to continue limiting the rest of the control switches 2, thereby providing convenience for line maintenance and increasing the maintenance safety.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (9)
1. A circuit breaker with a combined protective structure is characterized by comprising;
a circuit breaker main body (1);
the control switch (2), the said control switch (2) is installed in one end of the said circuit breaker body (1);
bolts (3), wherein the bolts (3) are arranged at the top and the bottom of the breaker main body (1);
the positioning pressing plate (4), 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 circuit breaker main body (1) and 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 used for increasing the stability of connection between external leads and the breaker main body (1).
2. The circuit breaker with combined protection structure according to claim 1, wherein the protection mechanism (5) comprises a connecting plate (501), a rotating rod (502), a positioning 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), the connecting plate (501) is fixed at one end of the circuit breaker main body (1) and is located 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 inside the connecting plate (501) and is sleeved outside the rotating rod (502), the positioning frame (503) is arranged at the top of the connecting plate (501) and penetrates through to the bottom of the connecting plate (501), frame (504) are fixed in the top of locating rack (503), and are located the outside of bull stick (502), fixed pulley (505) set up in the inner wall of frame (504), cam (506) set up in the outside of bull stick (502), and are located the inboard of frame (504), expanding spring (508) are fixed in the bottom of connecting plate (501), and are located one side of locating rack (503), runner (509) set up in one side of control switch (2), spacing groove (507) set up in the outside of runner (509).
3. The circuit breaker with combined protection structure according to claim 2, 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), the connecting rod (601) is arranged at one end of the positioning pressure 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 on one side of the rotating wheel (509), and the second straight rack (606) is fixed on the bottom of the moving frame (604) and is positioned outside the straight gear (605).
4. The circuit breaker with combined protection structure according to claim 2, wherein 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 a ball.
5. The circuit breaker with combined protection structure according to claim 2, wherein the inner side of the connecting plate (501) is provided with a sliding slot matching with the top of the positioning frame (503), and the movable distance of the positioning frame (503) relative to the connecting plate (501) is slightly larger than the depth of the limiting slot (507).
6. The circuit breaker with a combined protection structure according to claim 3, wherein a latch at one end of the second spur rack (606) is engaged with a latch at the outer side of the spur gear (605), one end of the movable rack (604) is engaged with a latch at the bottom of the first spur rack (602), and a sliding groove engaged with the limiting block (603) is arranged at the inner side of the movable rack (604).
7. The circuit breaker with 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 installation slot at the top of the circuit breaker main body (1).
8. A circuit breaker with combined protection structure according to claim 2, characterized in that the number of positioning frames (503) is equal to the number of control switches (2) and is located right above the control switches (2).
9. The circuit breaker with combined protection structure according to claim 2, wherein both 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN202210332243.XA CN114664608B (en) | 2022-03-31 | 2022-03-31 | Circuit breaker with combined protection structure |
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| CN114664608A true CN114664608A (en) | 2022-06-24 |
| CN114664608B 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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| CN114664608B (en) | 2024-04-05 |
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