CN113571352B - Floor type intelligent circuit breaker - Google Patents
Floor type intelligent circuit breaker Download PDFInfo
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- CN113571352B CN113571352B CN202110820519.4A CN202110820519A CN113571352B CN 113571352 B CN113571352 B CN 113571352B CN 202110820519 A CN202110820519 A CN 202110820519A CN 113571352 B CN113571352 B CN 113571352B
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- rotating shaft
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- rod
- cabinet door
- circuit breaker
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- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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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
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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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
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Abstract
The invention discloses a floor type intelligent circuit breaker, which comprises a circuit breaker body, a supporting table, an outer box body and a five-prevention assembly, wherein the supporting table is arranged on the circuit breaker body; the breaker body comprises a switching-on/off rotary handle; the outer box body comprises a first cabinet door and a second cabinet door which are oppositely arranged; the breaker body is arranged in the outer box body; according to the floor type intelligent circuit breaker, the safety protection capability of the circuit breaker can be greatly improved, when the opening and closing rotary handle is closed, the lifting rod is driven to move downwards, so that the first contact block is contacted with the second contact block, the second contact block is driven to rotate, the first rotating shaft is driven to rotate, the second rotating shaft is driven to rotate, the first locking block is driven to rotate to a state of locking the first cabinet door, and the second locking block is driven to rotate to a state of locking the second cabinet door; after the circuit breaker is switched on, the first cabinet door and the second cabinet door of the outer box body cannot be opened.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a floor type intelligent circuit breaker.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their use ranges, and circuit breakers rated at 3kV or more are generally referred to as high-voltage circuit breakers.
At present, most high-voltage circuit breakers are directly erected on a telegraph pole so as to directly transmit the power transmitted on the telegraph pole to a power utilization unit; however, in cities, the number of poles is relatively small, so that the circuit breaker needs to be arranged on the ground close to the electricity utilization unit; when the circuit breaker is arranged on the ground, the safety protection capability of the circuit breaker needs to be improved because a passer-by possibly passes through the circuit breaker, so that electric shock accidents are avoided, but the safety protection capability of the conventional circuit breaker is insufficient.
Disclosure of Invention
The invention mainly aims to provide a floor type intelligent circuit breaker, and aims to solve the problem that the safety protection capability of the existing circuit breaker is insufficient.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
a floor type intelligent circuit breaker comprises a circuit breaker body, an outer box body and a five-prevention assembly; the breaker body comprises a switching-on/off rotary handle; the outer box body comprises a first cabinet door and a second cabinet door which are oppositely arranged; the breaker body is arranged in the outer box body;
the five-prevention assembly comprises a lifting rod, a first sleeve, a first rotating shaft, a first contact block, a second rotating shaft, a first locking block and a second locking block; the opening and closing rotating handle is provided with a long groove extending along the length direction of the body; the first sleeve is fixed below the opening and closing rotary handle; the lifting rod is vertically embedded in the first sleeve in a sliding fit manner; the upper end of the lifting rod is movably embedded in the long groove; one end of the lifting rod, which extends downwards from the first sleeve, is connected with the first contact block;
the first rotating shaft and the second rotating shaft are both rotatably arranged in the outer box body; the first rotating shaft is perpendicular to the second rotating shaft; the second contact block is connected to the first rotating shaft; the first rotating shaft is used for driving the second rotating shaft to rotate; the first locking block and the second locking block are respectively arranged at two ends of the second rotating shaft; the first contact block can be contacted with the second contact block so as to drive the first rotating shaft to rotate; the first locking block can rotate to lock the first cabinet door; the second locking block can rotate to lock the second cabinet door.
Preferably, the outer box body comprises a first side wall and a second side wall which are oppositely arranged; the first cabinet door is hinged to the first side wall; the second cabinet door is hinged to the second side wall;
the inner bottom wall of the outer box body is also provided with a supporting table; the breaker body is arranged on the upper surface of the supporting table; the first sleeve is fixed on the supporting table; the first rotating shaft and the second rotating shaft are both rotatably connected to the supporting table; the first rotating shaft and the second rotating shaft are horizontally arranged;
the inner wall of the first cabinet door is connected with a first locking plate parallel to the first cabinet door through a first connecting plate; the first locking block can rotate between the first locking plate and the first cabinet door so as to lock the first cabinet door; the inner wall of the second cabinet door is connected with a second locking plate parallel to the second cabinet door through a second connecting plate; the second locking block can rotate to a position between the second locking plate and the second cabinet door so as to lock the second cabinet door.
Preferably, the first sleeve is arranged vertically; a pull ring is arranged at the tail end of the opening and closing rotating handle; the middle part of the opening and closing rotating handle is hinged to the breaker body; the long groove is arranged between the middle part of the opening and closing rotary handle and the pull ring; when the opening and closing rotating handle rotates downwards from the horizontal position, the circuit breaker is closed; when the switching-on/off rotary handle rotates upwards from the horizontal position, the breaker is switched off;
one end of the first contact block, which is close to the second contact block, is arc-shaped; one end of the second contact block, which is close to the first contact block, is arc-shaped; the top end of the lifting rod is connected with a connecting column; the connecting column is movably embedded in the long groove.
Preferably, the five-prevention assembly further comprises a sector gear, a third rotating shaft, a fourth rotating shaft, a first gear, a second gear, a third gear, a first bevel gear and a second bevel gear; the first rotating shaft is used for driving the second rotating shaft to rotate and comprises the following structures: the third rotating shaft and the fourth rotating shaft are both rotatably connected to the supporting table; the third rotating shaft is parallel to the first rotating shaft; the fourth rotating shaft is parallel to the second rotating shaft;
the sector gear is coaxially connected to the first rotating shaft; the first gear and the first bevel gear are both coaxially connected to the third rotating shaft; the second bevel gear and the second gear are both coaxially connected to the fourth rotating shaft; the third gear is coaxially connected with the second rotating shaft;
the sector gear is meshed with the first gear; the first bevel gear is meshed with the second bevel gear; the second gear is meshed with the third gear.
Preferably, the first rotating shaft, the third rotating shaft and the fourth rotating shaft are all located below the second rotating shaft.
Preferably, when the lifting rod moves to the lowest position, the first locking block rotates to be in contact with the upper surface of the first connecting plate, and the second locking block rotates to be in contact with the upper surface of the second connecting plate.
Preferably, the five-prevention assembly further comprises a third contact block; the structure of the third contact block is consistent with that of the second contact block; the third contact block is connected to the first rotating shaft and is positioned above the second contact block; when the opening and closing rotating handle rotates upwards from the horizontal position, the lifting rod is driven to ascend, so that the first contact block is contacted with the third contact block, and the first rotating shaft is driven to rotate.
Preferably, the five-prevention assembly further comprises a support box, a positioning plate, a first rod, a second rod, a spring, a contact plate, a second sleeve, a lifting plate, a lifting block, a first lug, a second lug and a connecting rod;
the support box is arranged below the first rotating shaft; the supporting box is provided with an inner cavity; the positioning plate is vertically arranged on the upper surface of the supporting box; the contact plate is connected to the first rotating shaft, is positioned between the first contact block and the sector gear, and is closer to the support box than the first contact block;
the positioning plate is provided with a first through hole and a second through hole; the lifting plate is movably embedded in the second through hole; the second sleeve is horizontally fixed in the inner cavity; the first rod is horizontally and slidably embedded in the second sleeve; the second rod is vertically connected to the first rod; one end of the spring is connected to the inner wall of the inner cavity, and the other end of the spring is connected to the second rod;
the jacking block is arranged at one end of the first rod, which is far away from the second rod; the upper part of the jacking block is arc-shaped; the jacking block can be contacted with the bottom of the lifting plate so as to enable the lifting plate to lift; the connecting rod is coaxially connected to the bottom end of the lifting rod, and the connecting rod movably penetrates through the second through hole; the first convex blocks and the second convex blocks are arranged at intervals on one side, facing the first rod, of the bottom end of the connecting rod; the elastic force of the spring enables the first rod to have a trend of moving towards the connecting rod;
when the opening and closing rotating handle is in a horizontal state, one end, far away from the second rod, of the first rod is in contact with the connecting rod and is located between the first protruding block and the second protruding block, and the highest point of the jacking block is in contact with the bottom of the lifting plate.
Preferably, the lifting plate is vertically matched and embedded in the first through hole.
Preferably, the first locking block is parallel to the second locking block.
Compared with the prior art, the invention has at least the following beneficial effects:
the floor type intelligent circuit breaker provided by the invention can greatly improve the safety protection capability of the circuit breaker, and particularly, when the opening and closing rotary handle is closed (namely, the opening and closing rotary handle rotates), the lifting rod is driven to move downwards, so that the first contact block is contacted with the second contact block, the second contact block is driven to rotate, the first rotating shaft is driven to rotate, the second rotating shaft is driven to rotate, the first locking block is driven to rotate to a state of locking the first cabinet door, and the second locking block is driven to rotate to a state of locking the second cabinet door; that is, after the circuit breaker is switched on, the first cabinet door and the second cabinet door of the outer box body cannot be opened, so that safety accidents caused by the fact that an operator opens the first cabinet door and the second cabinet door through misoperation under the condition that the circuit breaker is electrified are avoided, and the safety protection capability of the circuit breaker is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of a floor-type intelligent circuit breaker according to the present invention;
fig. 2 is an enlarged schematic view of detail a in fig. 1.
Reference numerals illustrate:
110-outer case, 120-support stand, 130-opening/closing lever, 140-first side wall, 150-second side wall, 160-first door, 170-second door, 180-first locking plate, 190-first connecting plate, 210-first locking block, 220-second locking plate, 230-second connecting plate, 240-second locking block, 250-second spindle, 260-circuit breaker body, 270-first bushing, 280-support case, 290-third gear, 310-second gear, 320-fourth spindle, 330-second bevel gear, 340-first bevel gear, 350-third spindle, 360-first gear, 370-sector gear, 380-first spindle, 390-third contact block, 410-second contact block, 420-contact plate, 430-lifting lever, 440-connecting post, 450-long slot, 460-pull ring, 470-first contact block, 480-positioning plate, 490-inner cavity, 510-spring, 520-second lever, 530-first through-block, 550-lifting lever, 590-lifting lever, 570-lifting lever, 590-lifting lever, 570-lifting lever, and supporting lever, 580-lifting lever, and 570-lifting lever.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides a floor type intelligent circuit breaker.
Referring to fig. 1-2, in an embodiment of a floor-type intelligent circuit breaker according to the present invention, the floor-type intelligent circuit breaker includes a circuit breaker body 260, an outer case 110, and a five-prevention component; the breaker body 260 includes a switching-off and switching-on lever 130; the outer case 110 includes a first cabinet door 160 and a second cabinet door 170 disposed opposite to each other in parallel; the circuit breaker body 260 is disposed in the outer case 110.
The five-prevention assembly includes a lifting rod 430, a first sleeve 270, a first rotating shaft 380, a first contact block 470, a second contact block 410, a second rotating shaft 250, a first locking block 210 and a second locking block 240; the opening and closing rotary handle 130 can rotate; the opening and closing rotary handle 130 is provided with a long groove 450 extending along the length direction of the body; the first sleeve 270 is fixed below the opening and closing rotary handle 130, and the first sleeve 270 is vertically arranged; the lifting rod 430 is vertically and slidably embedded in the first sleeve 270; the upper end (top end) of the lifting rod 430 is movably embedded in the long groove 450; a first contact block 470 is connected to one end of the lifting rod 430 which protrudes downward from the first sleeve 270.
The first rotating shaft 380 and the second rotating shaft 250 are both rotatably disposed in the outer case 110; the first rotation axis 380 is perpendicular to the second rotation axis 250; the second rotation axis 250 is perpendicular to both the first cabinet door 160 and the second cabinet door 170; the second contact block 410 is connected to the first shaft 380; the first rotating shaft 380 is used for driving the second rotating shaft 250 to rotate; the first locking block 210 and the second locking block 240 are respectively disposed at two ends of the second rotating shaft 250; the first contact block 470 can contact with the second contact block 410 to drive the first rotating shaft 380 to rotate; the first locking block 210 can be turned to lock the first cabinet door 160; the second lock block 240 can be turned to lock the second cabinet door 170. The first lock block 210 is parallel to the second lock block 240.
The floor type intelligent circuit breaker provided by the invention can greatly improve the safety protection capability of the circuit breaker, specifically, when the opening and closing rotary handle 130 is closed (namely, the opening and closing rotary handle 130 rotates), the lifting rod 430 is driven to move downwards, so that the first contact block 470 is contacted with the second contact block 410, the second contact block 410 is driven to rotate, the first rotating shaft 380 is driven to rotate, the second rotating shaft 250 is driven to rotate, the first locking block 210 is driven to rotate to a state of locking the first cabinet door 160, and the second locking block 240 is driven to rotate to a state of locking the second cabinet door 170; that is, after the circuit breaker is switched on, the first cabinet door 160 and the second cabinet door 170 of the outer box body 110 cannot be opened, so that safety accidents caused by that an operator opens the first cabinet door 160 and the second cabinet door 170 by misoperation under the condition that the circuit breaker is electrified are avoided, and the safety protection capability of the circuit breaker is greatly improved.
In addition, the outer case 110 includes a first sidewall 140 and a second sidewall 150 disposed opposite to each other; the first cabinet door 160 is hinged to the first side wall 140; the second cabinet door 170 is hinged to the second side wall 150. The first cabinet door 160 is used for overhauling an incoming line part of the circuit breaker after being opened, and the second cabinet door 170 is used for overhauling an outgoing line part of the circuit breaker after being opened.
The inner bottom wall of the outer case 110 is further provided with a support stand 120; the breaker body 260 is disposed on the upper surface of the support stand 120; the first sleeve 270 is fixed to the support table 120; the first shaft 380 and the second shaft 250 are both rotatably connected to the support stand 120; the first shaft 380 and the second shaft 250 are both horizontally disposed.
The inner wall of the first cabinet door 160 is connected with a first locking plate 180 parallel to the first cabinet door 160 through a first connecting plate 190, and the first locking block 210 can be rotated between the first locking plate 180 and the first cabinet door 160 to lock the first cabinet door 160; the inner wall of the second cabinet door 170 is connected with a second locking plate 220 parallel to the second cabinet door 170 through a second connecting plate 230; the second locking block 240 can be rotated between the second locking plate 220 and the second cabinet door 170 to lock the second cabinet door 170.
Meanwhile, the first sleeve 270 is vertically disposed; the end of the opening and closing rotary handle 130 is provided with a pull ring 460, so that the opening and closing of the circuit breaker can be manually performed (in the embodiment, the opening and closing of the circuit breaker are automatically performed by electric driving); the middle part of the opening and closing rotary handle 130 is hinged to the breaker body 260, i.e. the opening and closing rotary handle 130 can rotate relative to the middle part of the opening and closing rotary handle; the long slot 450 is arranged between the middle part of the opening and closing rotary handle 130 and the pull ring 460; specifically, in the present embodiment, when the opening/closing lever 130 rotates downward from the horizontal position, the circuit breaker is closed; when the opening and closing rotary handle 130 is rotated upward from the horizontal position, the circuit breaker opens.
One end of the first contact block 470, which is adjacent to the second contact block 410, is arc-shaped; one end of the second contact block 410, which is adjacent to the first contact block 470, is arc-shaped so as to facilitate contact and driving between the first contact block 470 and the second contact block 410; the top end of the lifting rod 430 is connected with a connecting column 440; the connecting post 440 is movably embedded in the long slot 450, and a blocking piece (not shown) is further connected to one end of the connecting post 440 protruding out of the long slot 450, so as to prevent the connecting post 440 from falling out of the long slot 450.
Through the technical scheme, the structure of the floor type intelligent circuit breaker provided by the invention is further perfected.
In addition, as shown in fig. 2, the five-prevention assembly further includes a sector gear 370, a third rotation shaft 350, a fourth rotation shaft 320, a first gear 360, a second gear 310, a third gear 290, a first bevel gear 340, and a second bevel gear 330; the first rotating shaft 380 is configured to drive the second rotating shaft 250 to rotate, and is: the third rotating shaft 350 and the fourth rotating shaft 320 are both rotatably connected to the supporting table 120; the third axis of rotation 350 is parallel to the first axis of rotation 380; the fourth rotation axis 320 is parallel to the second rotation axis 250. The third shaft 350 is located on a side of the first shaft 380 remote from the first sleeve 270.
The sector gear 370 is coaxially coupled to a first shaft 380; the first gear 360 and the first bevel gear 340 are both coaxially coupled to the third rotation shaft 350; the second bevel gear 330 and the second gear 310 are both coaxially connected to the fourth rotating shaft 320; the third gear 290 is coaxially coupled to the second shaft 250. Sector gear 370 is meshed with first gear 360; the first bevel gear 340 is meshed with the second bevel gear 330; the second gear 310 is meshed with the third gear 290. The first, third and fourth rotating shafts 380, 350 and 320 are all positioned below the second rotating shaft 250.
Through the technical scheme, the structure and the function of the five-prevention assembly are perfected, and particularly, the opening and closing rotary handle 130 is provided with a torsion spring, and the elasticity of the torsion spring enables the opening and closing rotary handle 130 to have a trend of keeping horizontal; when the opening and closing rotary handle 130 rotates downwards from the horizontal position, the circuit breaker is closed; in this process, the first contact block 470 starts to move downward from the initial position, and makes the first contact block 470 and the second contact block 410 contact, so as to drive the first rotating shaft 380 to rotate clockwise, under the meshing action of the sector gear 370 and the first gear 360, drive the third rotating shaft 350 to rotate counterclockwise, under the meshing action of the first bevel gear 340 and the second bevel gear 330, drive the fourth rotating shaft 320 to rotate counterclockwise, under the meshing action of the second gear 310 and the third gear 290, drive the second rotating shaft 250 to rotate counterclockwise, thereby driving the first locking block 210 and the second locking block 240 to rotate counterclockwise synchronously, and finally make the first locking block 210 located between the first locking plate 180 and the first cabinet door 160, and the second locking block 240 located between the second locking plate 220 and the second cabinet door 170, so as to achieve the effect of locking the first cabinet door 160 and the second cabinet door 170. And when the lifting bar 430 moves to the lowest position, the first locking piece 210 rotates to contact with the upper surface of the first link plate 190, and the second locking piece 240 rotates to contact with the upper surface of the second link plate 230, so as to secure the locking effect. When the lifting rod 430 moves to the lowest position, under the action of the torsion spring, one end of the pull ring 460 of the opening/closing rotary handle 130 returns upwards to rotate, so as to drive the lifting rod 430 to lift, and drive the first contact block 470 to return to the initial position, and in the process of returning the first contact block 470, the lifting rod does not contact with the second contact block 410, i.e. does not drive the second contact block 410 to rotate, i.e. does not drive the first rotating shaft 380 to rotate.
Meanwhile, as shown in fig. 2, the five-prevention assembly further includes a third contact block 390; the structure of the third contact block 390 is identical to that of the second contact block 410; the third contact block 390 is connected to the first rotating shaft 380, and the third contact block 390 is located above the second contact block 410; when the opening/closing rotary handle 130 rotates upward from the horizontal position, the lifting rod 430 is driven to lift, so that the first contact block 470 contacts with the third contact block 390 to drive the first rotary shaft 380 to rotate.
Specifically, when the opening/closing lever 130 is rotated upward from the horizontal position, the circuit breaker opens; in this process, the first contact block 470 starts to move upwards from the initial position, and makes the first contact block 470 and the third contact block 390 contact to drive the first rotating shaft 380 to rotate in a counter clock manner, under the meshing effect of the sector gear 370 and the first gear 360, the third rotating shaft 350 is driven to rotate in a counter clock manner, under the meshing effect of the first bevel gear 340 and the second bevel gear 330, the fourth rotating shaft 320 is driven to rotate in a counter clock manner, under the meshing effect of the second gear 310 and the third gear 290, the second rotating shaft 250 is driven to rotate in a counter clock manner, so that the first locking block 210 and the second locking block 240 are driven to rotate in a counter clock manner, and finally the first locking block 210 is no longer located between the first locking plate 180 and the first cabinet door 160, the second locking block 240 is no longer located between the second locking plate 220 and the second cabinet door 170, so that the first cabinet door 160 and the second cabinet door 170 are no longer locked, and at this time, the first cabinet door 160 and the second cabinet door 170 can be opened normally for subsequent maintenance operations.
When the lifting rod 430 moves to the highest position, one end of the pull ring 460 of the opening and closing rotary handle 130 returns to rotate under the action of the torsion spring, so as to drive the lifting rod 430 to descend, and drive the first contact block 470 to return to the initial position, and in the process of returning the first contact block 470, the lifting rod does not contact with the third contact block 390, i.e. does not drive the third contact block 390 to rotate, i.e. does not drive the first rotating shaft 380 to rotate.
Meanwhile, as shown in fig. 2, the five-prevention assembly further includes a support box 280, a positioning plate 480, a first rod 560, a second rod 520, a spring 510, a contact plate 420, a second sleeve 540, a lifting plate 570 and a lifting block 550, a first bump 580, a second bump 590 and a connection rod 620;
the support box 280 is disposed below the first rotation shaft 380; the support box 280 is provided with an inner cavity 490; the positioning plate 480 is vertically disposed on the upper surface of the support box 280; the contact plate 420 is connected to the first rotating shaft 380, and the contact plate 420 is located between the first contact block 470 and the sector gear 370 and is closer to the support box 280 than the first contact block 470, and the contact plate 420 can rotate into abutting contact with the positioning plate 480.
The positioning plate 480 is provided with a first through hole 530 and a second through hole 610; the lifting plate 570 is movably embedded in the second through hole 610; the second sleeve 540 is horizontally fixed in the inner cavity 490; the first rod 560 is horizontally slidably inserted into the second sleeve 540; the second rod 520 is vertically connected to the first rod 560; one end of the spring 510 is connected to the inner wall of the interior chamber 490 and the other end is connected to the second rod 520, the spring 510 being always in a compressed state.
The end of the first rod 560, which is far from the second rod 520, is provided with a jacking block 550; the upper portion of the jacking block 550 is arc-shaped; the lifting block 550 can contact the bottom of the lifting plate 570 to lift the lifting plate 570; the connecting rod 620 is coaxially connected to the bottom end of the lifting rod 430, and the connecting rod 620 movably penetrates through the second through hole 610; a first bump 580 and a second bump 590 are provided at an interval on a side of the bottom end of the connection rod 620 facing the first rod 560; the elastic force of the spring 510 causes the first lever 560 to have a tendency to move toward the connecting lever 620.
When the opening/closing rotation handle is in a horizontal state, one end of the first rod 560, which is far away from the second rod 520, is in contact with the connection rod 620 and is located between the first bump 580 and the second bump 590, and the highest point of the jacking block 550 is in contact with the bottom of the lifting plate 570 (i.e., when the lifting plate 570 is in the highest position, and when the lifting plate 570 is in the highest position, the rotation of the contact plate 420 can be blocked); the lifting plate 570 is vertically engaged with and embedded in the first through hole 530. The first bump 580 is located below the second bump 590.
Through the technical scheme, the safety protection capability of the local floor type intelligent circuit breaker can be further improved; specific: when the opening and closing rotary handle 130 rotates downwards from the horizontal position, the circuit breaker is closed; in this process, the first contact block 470 is moved downward from the initial position, and the first contact block 470 and the second contact block 410 are brought into contact, so that the first rotation shaft 380 is driven to rotate clockwise, and finally the first locking block 210 and the second locking block 240 are synchronously rotated in a counter clock, and finally the first locking block 210 is located between the first locking plate 180 and the first cabinet door 160, and the second locking block 240 is located between the second locking plate 220 and the second cabinet door 170, so as to achieve the effect of locking the first cabinet door 160 and the second cabinet door 170. During the rotation of the first rotation shaft 380, the contact plate 420 rotates clockwise, the contact plate 420 rotates in a direction approaching the positioning plate 480, during which the connection rod 620 moves down, the second protrusion 590 contacts the first rod 560, so that the first rod 560 moves away from the connection rod 620, and the lifter plate 570 descends, thereby allowing the contact plate 420 to continue to rotate and finally stay between the positioning plate 480 and the lifter plate 570; then, the lifting rod 430 returns upward under the action of the torsion spring of the opening and closing rotary handle 130, the connecting rod 620 moves upward, and finally, the first rod 560 contacts the connecting rod 620, and the first rod 560 is located between the first bump 580 and the second bump 590, so that the highest point of the lifting block 550 contacts the bottom of the lifting plate 570 again, and the lifting plate 570 stays at the highest position, so as to limit the contact plate 420, prevent the contact plate 420 from rotating counterclockwise, i.e., prevent the first locking block 210 from rotating out between the first locking plate 180 and the first cabinet door 160 under the action of external factors after the first cabinet door 160 is locked, and prevent the second locking block 240 from rotating out between the second locking plate 220 and the second cabinet door 170 under the action of external factors after the second cabinet door 170 is locked; thereby improving the stability of the locking state of the first and second cabinet doors 160 and 170 after the circuit breaker is closed.
In addition, when the opening and closing rotary handle 130 is rotated upward from the horizontal position, the circuit breaker is opened; in the course of which the first contact block 470 is moved upward from the initial position and the first contact block 470 and the third contact block 390 are brought into contact, the first rotation shaft 380 is driven to rotate in the reverse clock direction, in the course of the rotation of the first rotation shaft 380, the contact plate 420 is rotated counterclockwise, the contact plate 420 is rotated in a direction away from the positioning plate 480, in the course of which the connection rod 620 is moved upward, the first bump 580 is brought into contact with the first rod 560, the first rod 560 is moved in a direction away from the connection rod 620, and the elevating plate 570 is lowered, thereby allowing the contact plate 420 to continue to rotate in the reverse clock direction; then, the lifting lever 430 is returned downward by the torsion spring of the opening and closing lever 130, the connection rod 620 is moved downward, and finally the first lever 560 is brought into contact with the connection rod 620, and the first lever 560 is positioned between the first and second protrusions 580 and 590, so that the highest point of the lifting block 550 is brought into contact with the bottom of the lifting plate 570 again, and the lifting plate 570 is brought into contact again at the highest position.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. The floor type intelligent circuit breaker is characterized by comprising a circuit breaker body, an outer box body and a five-prevention component; the breaker body comprises a switching-on/off rotary handle; the outer box body comprises a first cabinet door and a second cabinet door which are oppositely arranged; the breaker body is arranged in the outer box body;
the five-prevention assembly comprises a lifting rod, a first sleeve, a first rotating shaft, a first contact block, a second rotating shaft, a first locking block and a second locking block; the opening and closing rotating handle is provided with a long groove extending along the length direction of the body; the first sleeve is fixed below the opening and closing rotary handle; the lifting rod is vertically embedded in the first sleeve in a sliding fit manner; the upper end of the lifting rod is movably embedded in the long groove; one end of the lifting rod, which extends downwards from the first sleeve, is connected with the first contact block;
the first rotating shaft and the second rotating shaft are both rotatably arranged in the outer box body; the first rotating shaft is perpendicular to the second rotating shaft; the second contact block is connected to the first rotating shaft; the first rotating shaft is used for driving the second rotating shaft to rotate; the first locking block and the second locking block are respectively arranged at two ends of the second rotating shaft; the first contact block can be contacted with the second contact block so as to drive the first rotating shaft to rotate; the first locking block can rotate to lock the first cabinet door; the second locking block can rotate to lock the second cabinet door.
2. The intelligent floor-standing circuit breaker according to claim 1, wherein the outer case comprises a first side wall and a second side wall which are oppositely arranged; the first cabinet door is hinged to the first side wall; the second cabinet door is hinged to the second side wall;
the inner bottom wall of the outer box body is also provided with a supporting table; the breaker body is arranged on the upper surface of the supporting table; the first sleeve is fixed on the supporting table; the first rotating shaft and the second rotating shaft are both rotatably connected to the supporting table; the first rotating shaft and the second rotating shaft are horizontally arranged;
the inner wall of the first cabinet door is connected with a first locking plate parallel to the first cabinet door through a first connecting plate; the first locking block can rotate between the first locking plate and the first cabinet door so as to lock the first cabinet door; the inner wall of the second cabinet door is connected with a second locking plate parallel to the second cabinet door through a second connecting plate; the second locking block can rotate to a position between the second locking plate and the second cabinet door so as to lock the second cabinet door.
3. The intelligent floor-standing circuit breaker according to claim 2, wherein the first bushing is vertically disposed; a pull ring is arranged at the tail end of the opening and closing rotating handle; the middle part of the opening and closing rotating handle is hinged to the breaker body; the long groove is arranged between the middle part of the opening and closing rotary handle and the pull ring; when the opening and closing rotating handle rotates downwards from the horizontal position, the circuit breaker is closed; when the switching-on/off rotary handle rotates upwards from the horizontal position, the breaker is switched off;
one end of the first contact block, which is close to the second contact block, is arc-shaped; one end of the second contact block, which is close to the first contact block, is arc-shaped; the top end of the lifting rod is connected with a connecting column; the connecting column is movably embedded in the long groove.
4. The intelligent floor-standing circuit breaker according to claim 3, wherein the five-prevention assembly further comprises a sector gear, a third shaft, a fourth shaft, a first gear, a second gear, a third gear, a first bevel gear, and a second bevel gear; the first rotating shaft is used for driving the second rotating shaft to rotate and comprises the following structures: the third rotating shaft and the fourth rotating shaft are both rotatably connected to the supporting table; the third rotating shaft is parallel to the first rotating shaft; the fourth rotating shaft is parallel to the second rotating shaft;
the sector gear is coaxially connected to the first rotating shaft; the first gear and the first bevel gear are both coaxially connected to the third rotating shaft; the second bevel gear and the second gear are both coaxially connected to the fourth rotating shaft; the third gear is coaxially connected with the second rotating shaft;
the sector gear is meshed with the first gear; the first bevel gear is meshed with the second bevel gear; the second gear is meshed with the third gear.
5. The intelligent floor-standing circuit breaker according to claim 4, wherein the first, third and fourth rotary shafts are all located below the second rotary shaft.
6. The intelligent floor-standing circuit breaker according to claim 2, wherein when the lifting lever moves to the lowest position, the first locking block rotates into contact with the upper surface of the first link plate, and the second locking block rotates into contact with the upper surface of the second link plate.
7. The intelligent floor-standing circuit breaker according to claim 4, wherein the five-prevention assembly further comprises a third contact block; the structure of the third contact block is consistent with that of the second contact block; the third contact block is connected to the first rotating shaft and is positioned above the second contact block; when the opening and closing rotating handle rotates upwards from the horizontal position, the lifting rod is driven to ascend, so that the first contact block is contacted with the third contact block, and the first rotating shaft is driven to rotate.
8. The intelligent floor-standing circuit breaker of claim 7, wherein the five-prevention assembly further comprises a support box, a positioning plate, a first rod, a second rod, a spring, a contact plate, a second sleeve, a lifting plate and lifting block, a first bump, a second bump and a connecting rod;
the support box is arranged below the first rotating shaft; the supporting box is provided with an inner cavity; the positioning plate is vertically arranged on the upper surface of the supporting box; the contact plate is connected to the first rotating shaft, is positioned between the first contact block and the sector gear, and is closer to the support box than the first contact block;
the positioning plate is provided with a first through hole and a second through hole; the lifting plate is movably embedded in the second through hole; the second sleeve is horizontally fixed in the inner cavity; the first rod is horizontally and slidably embedded in the second sleeve; the second rod is vertically connected to the first rod; one end of the spring is connected to the inner wall of the inner cavity, and the other end of the spring is connected to the second rod;
the jacking block is arranged at one end of the first rod, which is far away from the second rod; the upper part of the jacking block is arc-shaped; the jacking block can be contacted with the bottom of the lifting plate so as to enable the lifting plate to lift; the connecting rod is coaxially connected to the bottom end of the lifting rod, and the connecting rod movably penetrates through the second through hole; the first convex blocks and the second convex blocks are arranged at intervals on one side, facing the first rod, of the bottom end of the connecting rod; the elastic force of the spring enables the first rod to have a trend of moving towards the connecting rod;
when the opening and closing rotating handle is in a horizontal state, one end, far away from the second rod, of the first rod is in contact with the connecting rod and is located between the first protruding block and the second protruding block, and the highest point of the jacking block is in contact with the bottom of the lifting plate.
9. The intelligent floor-standing circuit breaker according to claim 8, wherein the lifting plate is vertically fitted and embedded in the first through hole.
10. The intelligent floor-standing circuit breaker according to claim 1, wherein the first locking block is parallel to the second locking block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110820519.4A CN113571352B (en) | 2021-07-20 | 2021-07-20 | Floor type intelligent circuit breaker |
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| CN202110820519.4A CN113571352B (en) | 2021-07-20 | 2021-07-20 | Floor type intelligent circuit breaker |
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| CN113571352A CN113571352A (en) | 2021-10-29 |
| CN113571352B true CN113571352B (en) | 2023-08-22 |
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| CN105244234A (en) * | 2015-10-21 | 2016-01-13 | 佳一电气有限公司 | Switching-off and switching-on actuating structure of miniature circuit breaker controller |
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|---|---|
| CN113571352A (en) | 2021-10-29 |
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Denomination of invention: A floor mounted intelligent circuit breaker Effective date of registration: 20231106 Granted publication date: 20230822 Pledgee: China Co. truction Bank Corp Yiyang branch Pledgor: Huaxiang XiangNeng Technology Co.,Ltd. Registration number: Y2023980063452 |