阅读说明：本技术 一种落地式智能断路器 (Floor type intelligent circuit breaker ) 是由 林雄辉 唐颂贵 王蓉晖 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种落地式智能断路器,包括断路器本体、支撑台、外箱体和五防组件；所述断路器本体包括分合闸转柄；所述外箱体包括相对设置的第一柜门和第二柜门；所述断路器本体设置于所述外箱体内；本发明提出的一种落地式智能断路器,能够大大提升断路器的安全防护能力,当分合闸转柄合闸时,带动升降杆向下移动,从而使得第一接触块与第二接触块接触,带动第二接触块转动,从而使得第一转轴转动,从而带动第二转轴转动,从而使得第一锁止块转动至锁定第一柜门的状态,并使得第二锁止块转动至锁定第二柜门的状态；即断路器在合闸后,外箱体的第一柜门和第二柜门均无法打开。(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 circuit breaker body is provided with a first protection component and a second protection component; the circuit breaker body comprises a switching-on and switching-off rotating handle; the outer box body comprises a first cabinet door and a second cabinet door which are oppositely arranged; the circuit breaker body is arranged in the outer box body; the floor type intelligent circuit breaker can greatly improve the safety protection capability of the circuit breaker, and when the opening and closing rotating handle is closed, the lifting rod is driven to move downwards, so that the first contact block is in contact 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; the circuit breaker is closing a floodgate the back promptly, and first cabinet door and the second cabinet door of outer box are all unable to be opened.)

1. A floor type intelligent circuit breaker is characterized by comprising a circuit breaker body, an outer box body and a five-prevention assembly; the circuit breaker body comprises a switching-on and switching-off rotating handle; the outer box body comprises a first cabinet door and a second cabinet door which are oppositely arranged; the circuit 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 an elongated slot extending along the length direction of the body; the first sleeve is fixed below the opening and closing rotating handle; the lifting rod is vertically and slidably embedded in the first sleeve; the upper end of the lifting rod is movably embedded in the long groove; one end of the lifting rod, which extends out of the first sleeve downwards, 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 in contact 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 floor-type intelligent circuit breaker according to claim 1, wherein the outer box 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;

a supporting table is further arranged on the inner bottom wall of the outer box body; the breaker body is arranged on the upper surface of the supporting table; the first sleeve is fixed on the support table; the first rotating shaft and the second rotating shaft are both rotationally connected to the supporting platform; the first rotating shaft and the second rotating shaft are both 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 to a position 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 to lock the second cabinet door.

3. The floor-type intelligent circuit breaker according to claim 2, wherein the first bushing is vertically disposed; the tail end of the opening and closing rotating handle is provided with a pull ring; the middle part of the opening and closing rotating handle is hinged to the circuit breaker body; the long groove is arranged between the middle part of the opening and closing rotating handle and the pull ring; when the switching-on and switching-off rotating handle rotates downwards from the horizontal position, the circuit breaker is switched on; when the opening and closing rotating handle rotates upwards from the horizontal position, the circuit breaker is opened;

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 elongated slot.

4. The floor type intelligent circuit breaker according to claim 3, wherein 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 the structure comprises the following components: the third rotating shaft and the fourth rotating shaft are both rotatably connected to the supporting platform; 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 to 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 floor type intelligent circuit breaker according to claim 4, wherein the first rotating shaft, the third rotating shaft and the fourth rotating shaft are all located below the second rotating shaft.

6. The floor type intelligent circuit breaker according to claim 2, wherein when the lifting lever is moved to the lowest position, the first locking block is rotated to be in contact with the upper surface of the first link plate, and the second locking block is rotated to be in contact with the upper surface of the second link plate.

7. The floor-standing intelligent 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 switching-on/off rotating handle rotates upwards from the horizontal position, the lifting rod is driven to ascend, so that the first contact block is in contact with the third contact block to drive the first rotating shaft to rotate.

8. The floor type intelligent circuit breaker according to claim 7, wherein the five-prevention assembly further comprises a supporting box, a positioning plate, a first rod, a second rod, a spring, a contact plate, a second bushing, a lifting plate and a jacking block, a first bump, a second bump and a connecting rod;

the supporting 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, far away from the second rod, of the first 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 lift the lifting plate; 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 lug and the second lug are arranged on one side, facing the first rod, of the bottom end of the connecting rod at intervals; the elastic force of the spring makes the first rod have the tendency of moving towards the direction of the connecting rod;

when the opening and closing rotating handle is in a horizontal state, one end of the first rod, which is far away from the second rod, is in contact with the connecting rod and is positioned between the first lug and the second lug, and the highest point of the jacking block is in contact with the bottom of the lifting plate.

9. The floor type intelligent circuit breaker according to claim 8, wherein the lifting plate is vertically fitted and embedded in the first through hole.

10. A floor-standing intelligent circuit breaker as claimed in claim 1, wherein said first latch block is parallel to said second latch block.

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a floor type intelligent circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their range of use, and circuit breakers having a rated voltage of 3kV or more are generally called high-voltage circuit breakers.

Currently, most high-voltage circuit breakers are directly erected on telegraph poles so as to directly transmit the electric power transmitted by the telegraph poles to power consumption units; however, in cities, there are relatively few utility poles, so circuit breakers need to be installed close to the ground of the electricity utility; set up the circuit breaker on the ground, because of the passerby may pass through the circuit breaker, the event needs the safety protection ability that promotes the circuit breaker to avoid appearing the electric shock accident, but the safety protection ability of current circuit breaker is not enough.

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 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 circuit breaker body comprises a switching-on and switching-off rotating handle; the outer box body comprises a first cabinet door and a second cabinet door which are oppositely arranged; the circuit 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 an elongated slot extending along the length direction of the body; the first sleeve is fixed below the opening and closing rotating handle; the lifting rod is vertically and slidably embedded in the first sleeve; the upper end of the lifting rod is movably embedded in the long groove; one end of the lifting rod, which extends out of the first sleeve downwards, 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 in contact 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;

a supporting table is further arranged on the inner bottom wall of the outer box body; the breaker body is arranged on the upper surface of the supporting table; the first sleeve is fixed on the support table; the first rotating shaft and the second rotating shaft are both rotationally connected to the supporting platform; the first rotating shaft and the second rotating shaft are both 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 to a position 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 to lock the second cabinet door.

Preferably, the first sleeve is vertically arranged; the tail end of the opening and closing rotating handle is provided with a pull ring; the middle part of the opening and closing rotating handle is hinged to the circuit breaker body; the long groove is arranged between the middle part of the opening and closing rotating handle and the pull ring; when the switching-on and switching-off rotating handle rotates downwards from the horizontal position, the circuit breaker is switched on; when the opening and closing rotating handle rotates upwards from the horizontal position, the circuit breaker is opened;

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 elongated slot.

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 the structure comprises the following components: the third rotating shaft and the fourth rotating shaft are both rotatably connected to the supporting platform; 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 to 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 lever moves to the lowermost position, the first locking piece rotates to be in contact with the upper surface of the first link plate, and the second locking piece rotates to be in contact with the upper surface of the second link plate.

Preferably, the fail safe 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 switching-on/off rotating handle rotates upwards from the horizontal position, the lifting rod is driven to ascend, so that the first contact block is in contact with the third contact block to drive the first rotating shaft to rotate.

Preferably, the five-prevention assembly further comprises a supporting 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 bump, a second bump and a connecting rod;

the supporting 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, far away from the second rod, of the first 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 lift the lifting plate; 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 lug and the second lug are arranged on one side, facing the first rod, of the bottom end of the connecting rod at intervals; the elastic force of the spring makes the first rod have the tendency of moving towards the direction of the connecting rod;

when the opening and closing rotating handle is in a horizontal state, one end of the first rod, which is far away from the second rod, is in contact with the connecting rod and is positioned between the first lug and the second lug, 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 lock block is parallel to the second lock block.

Compared with the prior art, the invention at least has the following beneficial effects:

the floor type intelligent circuit breaker can greatly improve the safety protection capability of the circuit breaker, and particularly, when a switching-on/off rotating handle is switched on (namely the switching-on/off rotating handle rotates), a lifting rod is driven to move downwards, so that a first contact block is contacted with a second contact block, the second contact block is driven to rotate, a first rotating shaft is driven to rotate, a second rotating shaft is driven to rotate, a first locking block is rotated to a state of locking a first cabinet door, and a second locking block is rotated to a state of locking a second cabinet door; the circuit breaker is closing a floodgate the back promptly, and first cabinet door and the second cabinet door of outer box all can't be opened, avoids operating personnel maloperation to open first cabinet door and the incident that leads to under the electrified condition of circuit breaker, has promoted the safety protection ability of circuit breaker greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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.

Description of reference numerals:

110-outer box body, 120-support table, 130-opening and closing rotating handle, 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 rotating shaft, 260-breaker body, 270-first sleeve, 280-support box, 290-third gear, 310-second gear, 320-fourth rotating shaft, 330-second bevel gear, 340-first bevel gear, 350-third rotating shaft, 360-first gear, 370-sector gear, 380-first rotating shaft, 390-third contact block, 410-second contact block, 420-contact plate, 430-lifting rod, 440-connecting column, 450-long groove, 460-pull ring, 470-first contact block, 480-positioning plate, 490-inner cavity, 510-spring, 520-second rod, 530-first through hole, 540-second sleeve, 550-jacking block, 560-first rod, 570-lifting plate, 580-first lug, 590-second lug, 610-second through hole and 620-connecting rod.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of 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 provided by the present invention, the floor type intelligent circuit breaker includes a circuit breaker body 260, an outer case 110, and a five-prevention assembly; the circuit breaker body 260 includes a switching-off and switching-on stem 130; the outer case 110 includes a first door 160 and a second door 170 disposed opposite and parallel to each other; the breaker body 260 is disposed in the outer case 110.

The five-prevention assembly comprises 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 rotating handle 130 can rotate; the opening and closing rotating 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 switching-off and switching-on rotating 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 an end of the lifting rod 430 that extends downward beyond the first sleeve 270.

The first rotating shaft 380 and the second rotating shaft 250 are both rotatably disposed in the outer box 110; the first rotating shaft 380 is perpendicular to the second rotating shaft 250; the second rotating shaft 250 is perpendicular to the first cabinet door 160 and the second cabinet door 170; the second contact block 410 is connected to the first rotation 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 rotate to lock the first cabinet door 160; the second locking block 240 can rotate to lock the second cabinet door 170. The first latch block 210 is parallel to the second latch block 240.

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 rotating handle 130 is switched on (namely, the opening and closing rotating 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; the circuit breaker is closing a floodgate the back promptly, and first cabinet door 160 and second cabinet door 170 of outer box 110 all can't be opened, avoids operating personnel to open first cabinet door 160 and second cabinet door 170 and the incident that leads to under the electrified condition of circuit breaker in the maloperation, has promoted the safety protection ability of circuit breaker greatly.

In addition, the outer case 110 includes a first sidewall 140 and a second sidewall 150 oppositely disposed; 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 performing maintenance operation on the incoming line part of the circuit breaker after being opened, and the second cabinet door 170 is used for performing maintenance operation on the outgoing line part of the circuit breaker after being opened.

A support table 120 is further provided on the inner bottom wall of the outer case 110; the breaker body 260 is disposed on the upper surface of the support stage 120; first sleeve 270 is secured to support table 120; the first rotating shaft 380 and the second rotating shaft 250 are both rotatably connected to the supporting table 120; the first and second rotating shafts 380 and 250 are 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 a first locking block 210 can rotate 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 latch 240 can be rotated between the second latch plate 220 and the second door 170 to lock the second door 170.

Meanwhile, the first sleeve 270 is vertically arranged; a pull ring 460 is arranged at the tail end of the switching-on/off rotating handle 130, and the switching-on/off of the circuit breaker is facilitated manually by the pull ring 460 (in the embodiment, the switching-on/off of the circuit breaker is automatically operated by electric drive); the middle part of the opening and closing rotating handle 130 is hinged to the circuit breaker body 260, namely, the opening and closing rotating handle 130 can rotate relative to the middle part of the opening and closing rotating handle; the long groove 450 is arranged between the middle part of the opening-closing brake rotating handle 130 and the pull ring 460; specifically, in the present embodiment, when the switching-off and switching-on rotating handle 130 rotates downward from the horizontal position, the circuit breaker is switched on; when the opening and closing rotating handle 130 rotates upwards from the horizontal position, the circuit breaker is opened.

One end of the first contact block 470 adjacent to the second contact block 410 is arc-shaped; one end of the second contact block 410 close to the first contact block 470 is arc-shaped to facilitate the 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 column 440 is movably inserted into the elongated slot 450, and a stopper (not shown) is further connected to an end of the connecting column 440 extending out of the elongated slot 450 to prevent the connecting column 440 from falling off the elongated 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 above-mentioned five-prevention assembly further comprises a sector gear 370, a third rotating shaft 350, a fourth rotating 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 structure of the first rotating shaft 380 for driving the second rotating shaft 250 to rotate is as follows: the third shaft 350 and the fourth shaft 320 are rotatably connected to the supporting platform 120; the third rotation shaft 350 is parallel to the first rotation shaft 380; the fourth rotation shaft 320 is parallel to the second rotation shaft 250. The third shaft 350 is located on a side of the first shaft 380 away from the first sleeve 270.

Sector gear 370 is coaxially connected to first shaft 380; the first gear 360 and the first bevel gear 340 are coaxially connected to the third rotating 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 connected to the second rotating 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 rotation shaft 380, the third rotation shaft 350 and the fourth rotation shaft 320 are all located below the second rotation shaft 250.

Through the technical scheme, the structure and the function of the five-prevention assembly are perfected, specifically, the opening and closing rotating handle 130 is provided with a torsion spring, and the elasticity of the torsion spring enables the opening and closing rotating handle 130 to have the tendency of keeping horizontal; when the switching-on/off rotating handle 130 rotates downwards from the horizontal position, the circuit breaker is switched on; in the process, the first contact block 470 moves downwards from the initial position, and the first contact block 470 and the second contact block 410 are in contact, so that the first rotating shaft 380 is driven to rotate clockwise, the third rotating shaft 350 is driven to rotate counterclockwise under the meshing action of the sector gear 370 and the first gear 360, the fourth rotating shaft 320 is driven to rotate clockwise under the meshing action of the first bevel gear 340 and the second bevel gear 330, the second rotating shaft 250 is driven to rotate counterclockwise under the meshing action of the second gear 310 and the third gear 290, so that the first locking block 210 and the second locking block 240 are driven to rotate counterclockwise synchronously, 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. And when the lifting lever 430 moves to the lowest position, the first locking block 210 rotates to contact with the upper surface of the first link plate 190, and the second locking block 240 rotates to contact with the upper surface of the second link plate 230, so as to ensure the locking effect. After 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 switching-closing rotating handle 130 returns to rotate upwards, so as to drive the lifting rod 430 to ascend, thereby driving 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., the second contact block 410 is not driven to rotate, i.e., the first rotating shaft 380 is not driven to rotate.

Meanwhile, as shown in fig. 2, the above-mentioned 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 switching-on/off handle 130 rotates upward from the horizontal position, the lifting rod 430 is driven to ascend, so that the first contact block 470 contacts with the third contact block 390 to drive the first rotating shaft 380 to rotate.

Specifically, when the switching-on/off rotating handle 130 rotates upward from the horizontal position, the circuit breaker is switched off; in the process, the first contact block 470 moves upwards from the initial position, and the first contact block 470 and the third contact block 390 are contacted to drive the first rotating shaft 380 to rotate counterclockwise, the third rotating shaft 350 to rotate clockwise under the meshing action of the sector gear 370 and the first gear 360, the fourth rotating shaft 320 to rotate counterclockwise under the meshing action of the first bevel gear 340 and the second bevel gear 330, the second rotating shaft 250 to rotate clockwise under the meshing action of the second gear 310 and the third gear 290, so that the first locking block 210 and the second locking block 240 are driven to rotate clockwise synchronously, 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 as to achieve the effect of no longer locking the first cabinet door 160 and the second cabinet door 170, at this time, the first and second cabinet doors 160 and 170 may be normally opened for subsequent maintenance operations.

When the lifting lever 430 moves to the highest position, under the action of the torsion spring, one end of the pull ring 460 of the switching-closing rotating handle 130 returns to rotate downward, so as to drive the lifting lever 430 to descend, thereby driving the first contact block 470 to return to the initial position, and in the process of returning the first contact block 470, the first contact block 390 does not contact with the third contact block 390, i.e., the third contact block 390 is not driven to rotate, i.e., the first rotating shaft 380 is not driven 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, a jacking block 550, a first projection 580, a second projection 590, and a connecting rod 620;

the support case 280 is disposed below the first rotation shaft 380; the supporting box 280 is provided with an inner cavity 490; the positioning plate 480 is vertically disposed on the upper surface of the support case 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 supporting box 280 than the first contact block 470, so that the contact plate 420 can rotate to be in close 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; second cannula 540 is horizontally secured within lumen 490; the first rod 560 is horizontally slidably embedded in the second sleeve 540; the second rod 520 is vertically connected to the first rod 560; the spring 510 is connected to the inner wall of the inner chamber 490 at one end and to the second rod 520 at the other end, and the spring 510 is always in a compressed state.

The end of the first rod 560 far away from the second rod 520 is provided with a jacking block 550; the upper part of the jacking block 550 is arc-shaped; the jacking blocks 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 lug 580 and a second lug 590 are arranged at an interval at one side of the bottom end of the connecting 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 in the direction of the connection lever 620.

When the opening and 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 connecting rod 620 and is located between the first lug 580 and the second lug 590, and the highest point of the jacking block 550 is in contact with the bottom of the lifting plate 570 (i.e. the lifting plate 570 is at the highest position at this time, and when the lifting plate 570 is at the highest position, the rotation of the contact plate 420 can be blocked); the lifting plate 570 is vertically fitted into the first through hole 530. The first bump 580 is located below the second bump 590.

By the technical scheme, the safety protection capability of the floor type intelligent circuit breaker can be further improved; specifically, the method comprises the following steps: when the switching-on/off rotating handle 130 rotates downwards from the horizontal position, the circuit breaker is switched on; in the process, the first contact block 470 moves downwards from the initial position, and the first contact block 470 and the second contact block 410 are in contact, so that the first rotating shaft 380 is driven to rotate clockwise, and finally the first locking block 210 and the second locking block 240 synchronously rotate anticlockwise, 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 rotating shaft 380, the contact plate 420 rotates clockwise, the contact plate 420 rotates towards the direction approaching the positioning plate 480, during which the connecting rod 620 moves downwards, the second protrusion 590 contacts with the first rod 560, so that the first rod 560 moves away from the connecting rod 620, and the lifting plate 570 descends, thereby allowing the contact plate 420 to continue to rotate and finally stay between the positioning plate 480 and the lifting plate 570; then, the lifting rod 430 moves upwards in a restoring manner under the action of the torsion spring of the switching-on/off rotating handle 130, the connecting rod 620 moves upwards, and finally the first rod 560 is in contact with 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 jacking block 550 is in contact with the bottom of the lifting plate 570 again, and the lifting plate 570 stays at the highest position to limit the contact plate 420, so that the contact plate 420 is prevented from rotating anticlockwise, that is, the first locking block 210 is prevented from rotating out of the space between the first locking plate 180 and the first cabinet door 160 under the action of an external factor after the first cabinet door 160 is locked, and the second locking block 240 is prevented from rotating out of the space between the second locking plate 220 and the second cabinet door 170 under the action of the external factor after the second cabinet door 170 is locked; therefore, the stability of the locking state of the first cabinet door 160 and the second cabinet door 170 after the breaker is closed is improved.

In addition, when the opening and closing rotating handle 130 rotates upward from the horizontal position, the circuit breaker opens; in the process, the first contact block 470 moves upwards from the initial position, and makes the first contact block 470 contact with the third contact block 390, so as to drive the first rotating shaft 380 to rotate counterclockwise, during the rotation of the first rotating shaft 380, the contact plate 420 rotates counterclockwise, the contact plate 420 rotates away from the positioning plate 480, during the process, the connecting rod 620 moves upwards, the first bump 580 contacts the first rod 560, so that the first rod 560 moves away from the connecting rod 620, so that the lifting plate 570 descends, and the contact plate 420 is allowed to continue rotating counterclockwise; then the lifting rod 430 is moved back downwards under the action of the torsion spring of the switching-closing handle 130, the connecting rod 620 moves downwards, and finally the first rod 560 is contacted with the connecting rod 620, and the first rod 560 is positioned between the first lug 580 and the second lug 590, so that the highest point of the jacking block 550 is contacted with the bottom of the lifting plate 570 again, and the lifting plate 570 stays at the highest position again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.