CN113314364A

CN113314364A - Circuit breaker

Info

Publication number: CN113314364A
Application number: CN202110503007.5A
Authority: CN
Inventors: 赵帆帆; 聂盼; 曹琼
Original assignee: Individual
Current assignee: Henan Heyi Electric Power Data Service Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-08-27
Anticipated expiration: 2041-05-10
Also published as: CN113314364B

Abstract

The invention discloses a circuit breaker, which comprises a bottom plate, a breaker body, a protection mechanism and a heat dissipation mechanism, wherein the breaker body is arranged on the outer surface of the front end of the bottom plate, the protection mechanism is arranged outside the breaker body, the outer surfaces of two sides of the protection mechanism are respectively provided with the heat dissipation mechanism, the protection mechanism comprises a protection cover, a sliding block, first teeth, a connecting plate, second teeth and an elastic telescopic assembly, the outer surfaces of two sides of the bottom plate are respectively provided with a sliding groove, and the inner surface of the sliding groove is provided with a movable groove close to the front end. According to the invention, by arranging the protection mechanism, the breaker body can be effectively prevented from dust while the height of the protection cover is adjusted by a maintainer to overhaul the breaker body, so that the probability of the failure of a power system is reduced, and a certain moving range is provided for the protection cover, so that the influence degree of the protection cover on the peripheral vibration in the use process can be effectively reduced.

Description

Circuit breaker

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a 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 fault current under an abnormal circuit condition for a predetermined time. The circuit breaker generally comprises a contact system, an arc extinguishing system, an operating mechanism, a release, a plastic shell and the like, and can be divided into a frame type circuit breaker (also called a universal circuit breaker) and a plastic shell type circuit breaker according to the structure.

In the prior patent (publication number: CN209729835U), a molded case circuit breaker with the characteristics of a frame circuit breaker has the advantages of small size, light weight and compact structure of the molded case circuit breaker, and also has the advantages of high short-circuit breaking capacity and high short-time current tolerance of the frame circuit breaker. The circuit breaker is optimized by removing a metal shell or a drawer seat, adopting a plastic shell and a suspension type installation mode, adopting fixed installation or plug-in installation through a plug-in installation platform, generally adopting a front-plate wiring mode during fixed installation, and adopting a front-plate wiring mode or a rear-plate wiring mode during plug-in installation.

In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved:

among various faults which may occur in a power system, the power grid is most harmful, and short-circuit faults are generated with high probability. After a short-circuit fault occurs in a power system, a rapidly rising short-circuit current can cause serious consequences, particularly, dust is easily sucked into the circuit breaker when the circuit breaker is used in a factory environment with large dust, and the dust attached to the surface of the circuit breaker increases the probability of explosion inside the circuit breaker, so that the probability of the fault occurrence of the power system of the factory is increased.

To this end, a circuit breaker is proposed.

Disclosure of Invention

The invention aims to provide a circuit breaker, which can effectively prevent dust while facilitating the maintenance of a breaker body by a maintenance worker to adjust the height of a protective cover by arranging a protective mechanism, thereby reducing the probability of the fault of a power system, and simultaneously providing a certain movable range for the protective cover, thereby effectively reducing the influence degree of the protective cover on the peripheral vibration in the use process, and solving the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a circuit breaker comprises a bottom plate, a breaker body, a protection mechanism and a heat dissipation mechanism, wherein the breaker body is arranged on the outer surface of the front end of the bottom plate, the protection mechanism is arranged outside the breaker body, and the outer surfaces of two sides of the protection mechanism are respectively provided with the heat dissipation mechanism;

the protection mechanism comprises a protection cover, a sliding block, a first tooth, a connecting plate, a second tooth and an elastic telescopic component, sliding grooves are formed in the outer surfaces of the two sides of the bottom plate, and the inner surface of the sliding groove is provided with a movable groove near the front end, the inner parts of the two groups of sliding grooves are connected with sliding blocks in a sliding way, the protective cover is fixedly connected between the two groups of sliding blocks, and one side of the outer surface of the sliding block close to the movable groove is fixedly connected with a first tooth, the connecting plate is movably connected inside the movable groove, and one side of the outer surface of the connecting plate, which is close to the chute, is fixedly connected with a plurality of groups of second teeth, the first teeth and the second teeth are mutually engaged, the number of the elastic telescopic assemblies is a plurality of groups, the groups of the elastic telescopic assemblies are equidistantly arranged on one side, away from the second tooth, of the outer surface of the connecting plate, and the protection mechanisms are arranged on the outer surfaces of two sides of the protection cover;

the flexible subassembly of elasticity includes first fly leaf, second fly leaf, dead lever, mounting panel and expanding spring, the one end and the connecting plate of first fly leaf and second fly leaf are articulated, and its other end articulates respectively has the mounting panel, the mounting groove has all been seted up with the position that two sets of mounting panels correspond to one side of the internal surface in activity groove, dead lever fixed connection is in the inside of mounting groove, and mounting groove and mounting panel sliding connection, expanding spring sets up in the surface of dead lever and is close to the position of one end, and expanding spring's one end and mounting groove fixed connection, the other end and mounting panel fixed connection.

Through adopting above-mentioned technical scheme, through setting up protection machanism, can overhaul the regulation protection casing height to the circuit breaker body at the maintainer of being convenient for, carry out effectual dustproof to the circuit breaker body to reduce the probability that electric power system broke down, provide certain home range for the protection casing simultaneously, thereby can effectually slow down the influence degree that the protection casing received vibration on every side in the use.

Preferably, two corresponding sets of the first movable plates and the second movable plates are distributed in a splayed manner, and the arc-shaped elastic sheets are fixedly connected between the first movable plates and the second movable plates.

Through adopting above-mentioned technical scheme, in the use, through setting up the flexible subassembly of elasticity, when can highly fixing the protection casing, can effectually slow down the influence that the protection casing received the vibration of external production, improve the life of protection casing, mutually support through setting up arc shell fragment and expanding spring simultaneously, can effectual damping effect of strengthening the device.

Preferably, the position that the internal surface of activity groove is close to between two sets of mounting grooves has seted up first notch, and the inside of first notch is provided with first gasbag, the one end fixed connection of activity groove is kept away from to the one end of first gasbag and the internal surface of first notch, and the other end runs through inside and the arc shell fragment fixed connection to the activity groove, and the surface of first gasbag one side of keeping away from the arc shell fragment has seted up a plurality of groups venthole, and venthole department is provided with the filter bag.

By adopting the technical scheme, in the using process, the protection cover, the arc-shaped elastic sheet and the extension spring are matched with each other, so that the vibration reduction effect of the device can be enhanced while the circuit breaker body is effectively prevented from dust, but in the actual using process, a small amount of dust can enter the interior of the protection cover through the opening of the protection cover and is attached to the surface of the protection cover, the failure probability of the circuit breaker body can be increased, and the hand part of an overhaul worker can be polluted by the dust to influence the health of the overhaul worker, so that the dust on the surface of the circuit breaker body can be blown by the first air bag, the environmental protection performance of the device is improved, the good working environment is improved for the overhaul worker, the first movable plate and the second movable plate repeatedly extrude and stretch the arc-shaped elastic sheet and the arc-shaped elastic sheet is fixedly connected with the first air bag in the process that the overhaul worker pushes the protection cover, consequently at this in-process, the arc shell fragment constantly extrudees and stretches first gasbag to make gaseous inside suction, the discharge from the venthole constantly, thereby blow the dust on circuit breaker body surface, carry out effectual heat dissipation to the inside of protection casing simultaneously, and at the in-process of first gasbag from shrink state to reconversion, the dust is blockked by the filter bag, can not get into the inside of first gasbag.

Preferably, heat dissipation mechanism includes motor, rotating ring, fixed plate and spliced pole, the louvre has all been seted up to the position that the both sides surface of protection casing is close to the middle part, and the internal surface of louvre is close to the fixedly connected with fixed plate of one side, motor sets up in the position that one side surface of fixed plate is close to the middle part, and motor's output shaft runs through the fixed plate and extends to the inside fixedly connected with spliced pole of louvre, the outer fixed surface of spliced pole is connected with a plurality of sets of radiator blade.

By adopting the technical scheme, in the using process, the arc-shaped elastic sheet is utilized to continuously extrude and stretch the first air bag, so that gas is continuously sucked and discharged from the inside of the air outlet hole, dust on the surface of the circuit breaker body is blown, meanwhile, effective heat dissipation is carried out on the inside of the protective cover, but in the operating process of the circuit breaker body, the internal electric element of the circuit breaker body can generate heat, so that the surface temperature of the circuit breaker body is caused, the operating speed of the circuit breaker body and the internal electric element thereof can be influenced even the internal circuit is blown when the temperature of the circuit breaker body and the internal electric element is overhigh, so that the normal operation of an electric power system is influenced, therefore, the air flow rate in the protective cover can be accelerated by arranging the heat dissipation mechanism, so that the effective heat dissipation is carried out on the circuit breaker body, in the using process, the output shaft of the motor drives the connecting column and the heat dissipation blades on the surface to rotate, thereby the heat in the protective cover is dissipated through the heat dissipation holes.

Preferably, the inner surface of the heat dissipation hole is provided with an annular groove, the rotating ring is movably connected inside the annular groove, and the inner surface of the rotating ring is fixedly connected with a plurality of groups of connecting rods, one end of each connecting rod is fixedly connected with the rotating ring, the other end of each connecting rod is fixedly connected with the connecting column, the outer surface of the rotating ring is fixedly connected with a plurality of groups of arc-shaped bulges, the inner surface of the annular groove is provided with a second notch, and one side of the inner surface of the second notch, which is far away from the annular groove, is provided with a connecting groove, the inside of the connecting groove is fixedly connected with a second air bag, one end of the second air bag is fixedly connected with one end of the inner surface of the connecting groove, the other end is fixedly connected with an arc-shaped plate, the outer surface of the arc-shaped plate is tightly attached to the outer surface of the arc-shaped bulge, the inner surface of the connecting groove is communicated with the inner surface of the protective cover, and a through hole is formed in one side, close to the inner part of the protective cover, of the outer surface of the second air bag.

Through adopting above-mentioned technical scheme, in the use, through setting up heat dissipation mechanism, can accelerate the inside air flow rate of protection casing, thereby carry out effectual heat dissipation to the circuit breaker body, in the use, the output shaft of motor drives the spliced pole and the radiating blade on its surface rotates, thereby make the inside heat of protection casing spill through the louvre, simultaneously through setting up the arc arch, arc and second gasbag, at spliced pole pivoted in-process, the connecting rod drives the swivel becket and makes its extrusion along with the arc arch promotes the arc repeatedly along with connecting rod pivoted in-process, tensile second gasbag, gas gets into the second gasbag and discharges repeatedly through the through-hole, thereby mutually support with first gasbag, improve the effect of blowing circuit breaker body surface dust, improve device's protecting effect.

Preferably, the internal surface of spread groove is close to one side fixedly connected with cleaning plate of circuit breaker body, one side fixedly connected with cleaning brush that the cleaning plate surface is close to the circuit breaker body, and one side fixedly connected with connecting pipe of cleaning brush is kept away from to the surface of cleaning plate, the one end and the through-hole fixed connection of cleaning plate are kept away from to the connecting pipe surface, and the cleaning plate is the fretwork form.

Through adopting above-mentioned technical scheme, in the use, utilize the second gasbag and mutually support with first gasbag, improve the effect of blowing circuit breaker body surface dust, improve the protective effect of device, but in the use of reality, circuit breaker body surface can be attached to comparatively stubborn dust, be difficult to through blowing of first gasbag and second gasbag with its clearance, consequently through setting up the clearance brush, can make it clear up circuit breaker body surface at the in-process that the shield reciprocated along the spout, the inside gas of second gasbag gets into the discharge repeatedly through the clearance board that is the fretwork form simultaneously, thereby the clearance effect of device has been improved.

Compared with the prior art, the invention has the beneficial effects that:

through setting up protection machanism, can overhaul the regulation protection casing height at the maintainer of being convenient for to the circuit breaker body when, carry out effectual dustproof to the circuit breaker body to reduce the probability that electric power system broke down, provide certain home range for the protection casing simultaneously, thereby can effectually slow down the influence degree that the protection casing received vibration on every side in the use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a combination view of the connecting plate and the movable slot of the present invention;

FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of a side view of the present invention;

FIG. 5 is an enlarged view of B of FIG. 4 in accordance with the present invention;

FIG. 6 is a combined view of a second notch and a connecting groove of the present invention;

fig. 7 is an enlarged view of C of fig. 6 according to the present invention.

In the figure: 1. a base plate; 11. a chute; 12. a movable groove; 13. mounting grooves; 14. a first notch; 15. a first air bag; 2. a circuit breaker body; 3. a protection mechanism; 31. a protective cover; 311. heat dissipation holes; 312. an annular groove; 313. a second notch; 314. connecting grooves; 315. a second air bag; 316. an arc-shaped plate; 317. cleaning the plate; 318. cleaning a brush; 319. a connecting pipe; 32. a slider; 33. a first tooth; 34. a connecting plate; 35. a second tooth; 36. an elastic telescopic component; 361. a first movable plate; 362. a second movable plate; 363. fixing the rod; 364. mounting a plate; 365. a tension spring; 366. an arc-shaped elastic sheet; 4. a heat dissipation mechanism; 41. a motor; 42. a rotating ring; 43. a fixing plate; 44. connecting columns; 45. a heat dissipating fin; 46. a connecting rod; 47. and an arc-shaped bulge.

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.

Referring to fig. 1 to 7, the present invention provides a technical solution:

a circuit breaker comprises a bottom plate 1, a breaker body 2, a protection mechanism 3 and a heat dissipation mechanism 4, wherein the breaker body 2 is arranged on the outer surface of the front end of the bottom plate 1, the protection mechanism 3 is arranged outside the breaker body 2, and the heat dissipation mechanisms 4 are arranged on the outer surfaces of the two sides of the protection mechanism 3;

the protection mechanism 3 comprises a protection cover 31, a sliding block 32, first teeth 33, a connecting plate 34, second teeth 35 and elastic telescopic assemblies 36, sliding grooves 11 are formed in the outer surfaces of the two sides of the bottom plate 1, movable grooves 12 are formed in the positions, close to the front ends, of the inner surfaces of the sliding grooves 11, the sliding blocks 32 are connected to the inner portions of the two groups of sliding grooves 11 in a sliding mode, the protection cover 31 is fixedly connected between the two groups of sliding blocks 32, the first teeth 33 are fixedly connected to one sides, close to the movable grooves 12, of the outer surfaces of the sliding blocks 32, the connecting plate 34 is movably connected to the inner portions of the movable grooves 12, a plurality of groups of second teeth 35 are fixedly connected to one sides, close to the sliding grooves 11, of the outer surfaces of the connecting plate 34, the first teeth 33 are meshed with the second teeth 35, the number of the elastic telescopic assemblies 36 is a plurality of groups, the elastic telescopic assemblies 36 are arranged on one sides, far away from the second teeth 35, of the outer surfaces of the connecting plate 34, the protection mechanism 3 is arranged on the outer surfaces of two sides of the protection cover 31;

the elastic telescopic assembly 36 includes a first movable plate 361, a second movable plate 362, a fixing rod 363, a mounting plate 364 and a telescopic spring 365, the first movable plate 361 is hinged to the connecting plate 34 with one end of the second movable plate 362, and the other end of the first movable plate 361 is hinged to the mounting plate 364, the mounting groove 13 is opened on one side of the inner surface of the movable groove 12 corresponding to the two sets of mounting plates 364, the fixing rod 363 is fixedly connected to the inside of the mounting groove 13, the mounting groove 13 is slidably connected to the mounting plate 364, the telescopic spring 365 is disposed on the outer surface of the fixing rod 363 near one end, one end of the telescopic spring 365 is fixedly connected to the mounting groove 13, and the other end of the telescopic spring 365 is fixedly connected to the mounting plate 364.

Through adopting above-mentioned technical scheme, through setting up protection machanism 3, can overhaul circuit breaker body 2 at the maintainer of being convenient for and adjust the protection casing 31 height in, carry out effectual dustproof to circuit breaker body 2 to reduce the probability that electric power system breaks down, provide certain home range for protection casing 31 simultaneously, thereby can effectually slow down the influence degree that protection casing 31 received vibration on every side in the use.

As an embodiment of the present invention, two corresponding sets of the first movable plates 361 and the second movable plates 362 are distributed in a splayed shape, and an arc-shaped elastic sheet 366 is fixedly connected between the first movable plates 361 and the second movable plates 362.

In the use, through setting up the flexible subassembly 36 of elasticity, when can highly fixing the protection casing 31, can effectually slow down the influence that the protection casing 31 received the vibration of external production, improve the life of protection casing 31, mutually support through setting up arc shell fragment 366 and expanding spring 365 simultaneously, can the effectual damping effect who strengthens the device.

As an embodiment of the present invention, a first notch 14 is formed in a position, which is close to between two sets of mounting grooves 13, of the inner surface of the movable groove 12, a first air bag 15 is arranged inside the first notch 14, one end of the first air bag 15 is fixedly connected with one end, which is far away from the movable groove 12, of the inner surface of the first notch 14, the other end of the first air bag penetrates through the inside of the movable groove 12 and is fixedly connected with the arc-shaped elastic sheet 366, and a plurality of sets of air outlet holes are formed in one side, which is far away from the arc-shaped elastic sheet 366, of the outer surface of the first air bag 15, and a filter bag is arranged at the air outlet holes.

In the using process, the protection cover 31, the arc-shaped elastic sheet 366 and the extension spring 365 are matched with each other, so that the vibration damping effect of the device can be enhanced while the circuit breaker body 2 is effectively prevented from dust, but in the actual using process, a small amount of dust can enter the interior of the protection cover 31 through the opening of the protection cover 31 and is attached to the surface of the protection cover, the probability of failure of the circuit breaker body 2 can be increased, and the hand of a maintenance worker is polluted during the maintenance process to influence the health of the maintenance worker, so that the dust on the surface of the circuit breaker body 2 can be blown by arranging the first air bag 15, the environmental protection performance of the device is improved, the good working environment for the maintenance worker is improved, in the process that the maintenance worker pushes the protection cover 31, the first movable plate 361 and the second movable plate 362 repeatedly extrude and stretch the arc-shaped elastic sheet 366, and the arc-shaped elastic sheet 366 is fixedly connected with the first air bag 15, therefore, in this process, the arc-shaped elastic sheet 366 continuously presses and stretches the first air bag 15, so that the air is continuously sucked into and discharged from the inside of the air outlet hole, the dust on the surface of the circuit breaker body 2 is blown, meanwhile, the inside of the protective cover 31 is effectively radiated, and in the process that the first air bag 15 is recovered from the contracted state, the dust is blocked by the filter bag and cannot enter the inside of the first air bag 15.

As an embodiment of the present invention, the heat dissipation mechanism 4 includes a motor 41, a rotating ring 42, a fixing plate 43 and a connecting column 44, heat dissipation holes 311 are formed in positions of outer surfaces of two sides of the shield 31 near the middle, the fixing plate 43 is fixedly connected to a position of an inner surface of the heat dissipation hole 311 near one side, the motor 41 is disposed at a position of an outer surface of one side of the fixing plate 43 near the middle, an output shaft of the motor 41 penetrates through the fixing plate 43 and extends to the inside of the heat dissipation holes 311, the connecting column 44 is fixedly connected to the inside of the fixing hole, and a plurality of sets of heat dissipation blades 45 are fixedly connected to an outer surface of the connecting column 44.

In the using process, the arc-shaped elastic sheet 366 is used for continuously extruding and stretching the first air bag 15, so that the air is continuously sucked and discharged from the inside of the air outlet hole, thereby blowing the dust on the surface of the circuit breaker body 2, and simultaneously effectively dissipating the heat inside the protective cover 31, but in the operating process of the circuit breaker body 2, the internal electrical elements can generate heat, thereby causing the surface temperature of the circuit breaker body 2, and when the temperature of the circuit breaker body 2 and the internal electrical elements is too high, the operating speed of the circuit breaker body and even the internal circuits of the circuit breaker body can be influenced, thereby influencing the normal operation of an electric power system, therefore, by arranging the heat dissipation mechanism 4, the air flow speed inside the protective cover 31 can be accelerated, thereby effectively dissipating the heat of the circuit breaker body 2, in the using process, the output shaft of the motor 41 drives the connecting column 44 and the heat dissipation blades 45 on the surface to rotate, so that the heat inside the shield 31 is dissipated through the heat dissipation holes 311.

As an embodiment of the present invention, an annular groove 312 is formed on an inner surface of the heat dissipation hole 311, the rotating ring 42 is movably connected to the inside of the annular groove 312, a plurality of sets of connecting rods 46 are fixedly connected to the inner surface of the rotating ring 42, one end of each connecting rod 46 is fixedly connected to the rotating ring 42, the other end of each connecting rod is fixedly connected to the connecting column 44, a plurality of sets of arc protrusions 47 are fixedly connected to the outer surface of the rotating ring 42, a second notch 313 is formed on the inner surface of the annular groove 312, a connecting groove 314 is formed on a side of the inner surface of the second notch 313 away from the annular groove 312, a second air bag 315 is fixedly connected to the inside of the connecting groove 314, one end of the second air bag 315 is fixedly connected to one end of the inner surface of the connecting groove 314, an arc plate 316 is fixedly connected to the other end of the inner surface of the connecting groove 316, the outer surface of the arc plate 316 is tightly attached to the outer surface of the arc protrusion 47, the inner surface of the connecting groove 314 is communicated with the inner surface of the shield 31, a through hole is formed on one side of the outer surface of the second air bag 315 close to the inside of the shield 31.

In the use, through setting up heat dissipation mechanism 4, can accelerate the inside air flow rate of protection casing 31, thereby carry out effectual heat dissipation to circuit breaker body 2, in the use, motor 41's output shaft drives spliced pole 44 and its surperficial radiating fin 45 rotates, thereby make the inside heat of protection casing 31 to pass through louvre 311 effluvium, simultaneously through setting up arc arch 47, arc 316 and second gasbag 315, at spliced pole 44 pivoted in-process, connecting rod 46 drives swivel becket 42 and promotes arc 316 along with connecting rod 46 pivoted in-process with arc arch 47 repeatedly and make its extrusion, tensile second gasbag 315, gas gets into second gasbag 315 and discharges repeatedly through the through-hole, thereby mutually support with first gasbag 15, improve the effect of blowing circuit breaker body 2 surface dust, the protecting effect of the improvement device.

As an embodiment of the present invention, a cleaning plate 317 is fixedly connected to one side of the inner surface of the connecting groove 314 close to the breaker body 2, a cleaning brush 318 is fixedly connected to one side of the outer surface of the cleaning plate 317 close to the breaker body 2, a connecting pipe 319 is fixedly connected to one side of the outer surface of the cleaning plate 317 far from the cleaning brush 318, one end of the outer surface of the connecting pipe 319 far from the cleaning plate 317 is fixedly connected to the through hole, and the cleaning plate 317 is hollowed.

In the use, utilize second gasbag 315 and first gasbag 15 to mutually support, improve the effect of blowing the dust on circuit breaker body 2 surface, improve the guard action of device, but in actual use, circuit breaker body 2 surface can be adhered to comparatively stubborn dust, be difficult to through blowing of first gasbag 15 and second gasbag 315 with its clearance, consequently through setting up cleaning brush 318, can make it clear up circuit breaker body 2 surface at the in-process that protection casing 31 reciprocated along spout 11, the inside gas of second gasbag 315 gets into the discharge repeatedly through the clearance board 317 that is the fretwork form simultaneously, thereby the clearance effect of device has been improved.

The working principle is as follows: by arranging the protection mechanism 3, the protection mechanism can effectively prevent dust on the breaker body 2 when being convenient for an overhaul person to overhaul the breaker body 2 to adjust the height of the protection cover 31, thereby reducing the failure probability of a power system, and simultaneously providing a certain range of motion for the protection cover 31, thereby effectively reducing the influence degree of the protection cover 31 on the ambient vibration in the use process, and effectively preventing dust on the breaker body 2 by using the protection cover 31 in the use process, when the breaker body 2 needs to be overhauled, the overhaul person holds the protection cover 31 and pushes the protection cover upwards along the sliding chute 11, in the process, the protection cover 31 drives the sliding block 32 and the first tooth 33 on the surface of the sliding block to move in the sliding chute 11 and pushes the second tooth 35, so that the second tooth 35 pushes the connecting plate 34 to move to one side close to the mounting groove 13 and pushes the first movable plate 361 and the second movable plate 362, in the process, the first movable plate 361 and the second movable plate 362 rotate around the two ends thereof and push the mounting plate 364 to press the extension spring 365 along the fixing rod 363, so as to provide a space for the first teeth 33 and the slider 32 to move upwards, when the first teeth 33 are located between the two sets of second teeth 35, the corresponding two sets of mounting plates 364 move the first movable plate 361 and the second movable plate 362 towards each other under the push of the extension spring 365, so as to push the connecting plate 34 towards the first teeth 33, at this time, the first teeth 33 and the second teeth 35 are engaged with each other, the height of the shield 31 is fixed, meanwhile, when the large machine in the factory runs to generate vibration, the shield 31 drives the slider 32 to push the first teeth 33 to press the second teeth 35 and the connecting plate 34, the influence of the shield 31 caused by the vibration generated from the outside can be effectively alleviated by the high elasticity of the extension spring 365, the service life of the protective cover 31 is prolonged.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a circuit breaker, includes bottom plate (1), circuit breaker body (2), protection machanism (3) and heat dissipation mechanism (4), its characterized in that: the circuit breaker body (2) is arranged on the outer surface of the front end of the bottom plate (1), the protection mechanism (3) is arranged outside the circuit breaker body (2), and the outer surfaces of two sides of the protection mechanism (3) are respectively provided with a heat dissipation mechanism (4);

the protection mechanism (3) comprises a protection cover (31), a sliding block (32), first teeth (33), a connecting plate (34), second teeth (35) and an elastic telescopic assembly (36), sliding grooves (11) are formed in the outer surfaces of the two sides of the bottom plate (1), movable grooves (12) are formed in the positions, close to the front ends, of the inner surfaces of the sliding grooves (11), the sliding blocks (32) are connected to the inner portions of the sliding grooves (11) in a sliding mode, the protection cover (31) is fixedly connected between the two groups of sliding blocks (32), the first teeth (33) are fixedly connected to one side, close to the movable grooves (12), of the outer surfaces of the sliding blocks (32), the connecting plate (34) is movably connected to the inner portions of the movable grooves (12), the second teeth (35) of a plurality of groups are fixedly connected to one side, close to the sliding grooves (11), of the outer surfaces of the connecting plate (34), the first teeth (33) are meshed with the second teeth (35), the number of the elastic telescopic assemblies (36) is a plurality of groups, the groups of the elastic telescopic assemblies (36) are equidistantly arranged on one side, away from the second tooth (35), of the outer surface of the connecting plate (34), and the protection mechanisms (3) are arranged on the outer surfaces of two sides of the protection cover (31);

elastic telescopic component (36) includes first fly leaf (361), second fly leaf (362), dead lever (363), mounting panel (364) and expanding spring (365), first fly leaf (361) is articulated with connecting plate (34) with the one end of second fly leaf (362), and its other end articulates respectively has mounting panel (364), mounting groove (13) have all been seted up with the position that two sets of mounting panel (364) correspond to one side of the internal surface of activity groove (12), dead lever (363) fixed connection is in the inside of mounting groove (13), and mounting groove (13) and mounting panel (364) sliding connection, expanding spring (365) set up in the position that the surface of dead lever (363) is close to one end, and expanding spring (365)'s one end and mounting groove (13) fixed connection, the other end and mounting panel (364) fixed connection.

2. A circuit breaker according to claim 1, wherein: the two corresponding sets of the first movable plates (361) and the second movable plates (362) are distributed in a splayed shape, and arc-shaped elastic sheets (366) are fixedly connected between the first movable plates (361) and the second movable plates (362).

3. A circuit breaker according to claim 2, wherein: the utility model discloses a portable air bag, including activity groove (12), the internal surface of activity groove (12) is close to the position between two sets of mounting grooves (13) and has seted up first notch (14), and the inside of first notch (14) is provided with first gasbag (15), the one end fixed connection of activity groove (12) is kept away from to the one end of first gasbag (15) and the internal surface of first notch (14), and the other end runs through inside and arc shell fragment (366) fixed connection to activity groove (12), and the one side that arc shell fragment (366) was kept away from to the surface of first gasbag (15) has seted up a plurality of groups of ventholes, and venthole department is provided with the filter bag.

4. A circuit breaker according to claim 1, wherein: heat dissipation mechanism (4) are including motor (41), rotating ring (42), fixed plate (43) and spliced pole (44), louvre (311) have all been seted up to the position that the both sides surface of protection casing (31) is close to the middle part, and the internal surface of louvre (311) is close to position fixedly connected with fixed plate (43) of one side, motor (41) set up in the position that one side surface of fixed plate (43) is close to the middle part, and the output shaft of motor (41) runs through fixed plate (43) and extends to inside fixedly connected with spliced pole (44) of louvre (311), the outer fixed surface of spliced pole (44) is connected with a plurality of sets of radiator vane (45).

5. A circuit breaker according to claim 4, wherein: the inner surface of the heat dissipation hole (311) is provided with an annular groove (312), the rotating ring (42) is movably connected inside the annular groove (312), the inner surface of the rotating ring (42) is fixedly connected with a plurality of groups of connecting rods (46), one end of each connecting rod (46) is fixedly connected with the rotating ring (42), the other end of each connecting rod is fixedly connected with the connecting column (44), the outer surface of the rotating ring (42) is fixedly connected with a plurality of groups of arc-shaped protrusions (47), the inner surface of the annular groove (312) is provided with a second notch (313), one side, far away from the annular groove (312), of the inner surface of the second notch (313) is provided with a connecting groove (314), the inner part of the connecting groove (314) is fixedly connected with a second air bag (315), one end of the second air bag (315) is fixedly connected with one end of the inner surface of the connecting groove (314), and the other end of the second air bag (316) is fixedly connected with an arc-shaped plate, the outer surface of arc board (316) closely laminates with the surface of arc arch (47), the internal surface of spread groove (314) communicates with each other with the internal surface of protection casing (31), the surface of second gasbag (315) is close to the inside one side of protection casing (31) and has seted up the through-hole.

6. A circuit breaker according to claim 5, wherein: the internal surface of connecting groove (314) is close to one side fixedly connected with cleaning plate (317) of circuit breaker body (2), one side fixedly connected with cleaning brush (318) that cleaning plate (317) surface is close to circuit breaker body (2), and one side fixedly connected with connecting pipe (319) of cleaning brush (318) are kept away from to the surface of cleaning plate (317), the one end and the through-hole fixed connection of cleaning plate (317) are kept away from to connecting pipe (319) surface, and cleaning plate (317) are the fretwork form.