Intelligent circuit breaker with safety protection

Abstract

The application belongs to the field of circuit breakers, and discloses an intelligent circuit breaker with safety protection, which comprises a mounting bracket, a protection transmission assembly, a tripping execution assembly and a limiting assembly. When the application is used, the impact force of external objects is received by the protection plate, the first buffer spring, the second buffer spring and the cylinder protection structure, the impact energy is absorbed by elastic deformation, and the impact speed is slowed down, so that the impact force is not directly transmitted to the intelligent circuit breaker body, the damage of the circuit breaker shell and internal components is effectively prevented, and the pain points that the existing intelligent circuit breaker lacks effective impact protection and is prone to equipment failure caused by impact are solved. Meanwhile, through the linkage of the protection transmission assembly and the tripping execution assembly, the impact force can be efficiently converted into tripping power, the lower pressing plate can accurately press down the contactor, the forced tripping of the intelligent circuit breaker is realized, and through the reset spring and the lower pressing plate, the tripping execution assembly is ensured not to automatically reset after tripping, so that the contactor is prevented from rebounding and closing.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and in particular to an intelligent circuit breaker with safety protection. Background Technology

[0002] As an indispensable core protection device in power distribution systems, intelligent circuit breakers are widely used in various scenarios such as outdoor areas, workshops, and construction sites. Their main function is to quickly disconnect the circuit when faults such as overload, short circuit, and leakage occur, thereby ensuring the safety of the power distribution system and electrical equipment.

[0003] With the rapid development of industrial production and infrastructure construction, the application of cabinet-free, independently installed intelligent circuit breakers is becoming increasingly widespread. These circuit breakers do not require a dedicated installation cabinet and are directly exposed to the external environment, but they are susceptible to impacts from external objects such as forklifts, trolleys, and construction equipment, which can lead to equipment failure.

[0004] In existing technologies, most intelligent circuit breakers lack effective external impact protection structures. When subjected to external impact, the impact force is directly transmitted to the circuit breaker body, which can easily damage the circuit breaker casing and internal components, and may also trigger the circuit breaker to malfunction, causing unnecessary power outages. At the same time, some circuit breakers with simple protection functions are prone to automatic reset of their tripping execution components after being triggered by an impact, causing the switch to spring back and close, making it impossible to maintain the tripping state, which poses a great safety hazard to power distribution.

[0005] In view of the shortcomings of the existing technology, there is an urgent need for an intelligent circuit breaker with efficient impact protection, no automatic reset after forced tripping, and pure mechanical passive drive. Summary of the Invention

[0006] The present invention provides an intelligent circuit breaker with safety protection, which solves the problems of existing intelligent circuit breakers lacking effective impact protection structure, being prone to automatic reset after tripping, and being inconvenient to maintain.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a smart circuit breaker with safety protection, comprising a mounting bracket, a protective transmission assembly, a tripping execution assembly, and a limit assembly, wherein the protective transmission assembly, the tripping execution assembly, and the limit assembly are all mounted on the mounting bracket, and further comprising: two support rods, two guide pipes, two first hinge joints, two round rods, and a base; the support rods, guide pipes, first hinge joints, round rods, and base cooperate with the protective transmission assembly to realize power transmission and conversion; the protective transmission assembly includes two first slide rails, multiple second slide rails, a smart circuit breaker body, a switch, and two support rods. The circuit breaker comprises a support plate, two cylinders, two first piston plates, and two pressure rods; two first slide rails are symmetrically installed on one side of the mounting bracket, and multiple second slide rails are installed on the same side of the two first slide rails. The intelligent circuit breaker body is fixed on one side of one of the second slide rails, and the knife switch is disposed on one side of the intelligent circuit breaker body. The two support plates are slidably disposed on the inner walls of the two first slide rails, the two cylinders are fixed on one side of the two support plates, the two first piston plates are movably embedded in the inner walls of the two cylinders, and one end of each of the two pressure rods is fixedly connected to one side of the two first piston plates.

[0008] As a further improvement of the present invention: the protective transmission assembly further includes a protective plate, two first buffer springs, two hollow cylinders, two second piston plates, two push rods, and two second buffer springs. The protective plate is fixedly connected to the other end of the two pressure-bearing rods to bear external impact forces. The two first buffer springs are respectively fixed to the end of the cylinder away from the pressure-bearing rods. The two hollow cylinders are symmetrically arranged. The two second piston plates are respectively movably embedded in the inner wall of the two hollow cylinders. One end of the two push rods is respectively fixedly connected to the two second piston plates. The two second buffer springs are respectively movably sleeved on the outer surface of the two push rods.

[0009] As a further improvement of the present invention: two second buffer springs are respectively located between the second piston plate and the end of the hollow cylinder, for storing elastic potential energy and realizing the automatic reset of the push rod and the second piston plate.

[0010] As a further improvement of the present invention: the two first hinge joints are respectively fixed on the opposite sides of the two push rods, and the two round rods are respectively sleeved on the outer surface of the two support rods and can rotate freely around the corresponding support rods.

[0011] As a further improvement of the present invention: the two support rods are fixedly installed on the inner wall of the base, one end of the two guide pipes is connected to the two cylinders respectively, and the other end is connected to the two hollow cylinders respectively, so as to realize the circulation of gas inside the cylinders and hollow cylinders and convert the gas pressure into mechanical movement power.

[0012] As a further improvement of the present invention: the circuit breaker actuator includes a base plate, a circular shaft, a lower pressure plate, two first telescopic rods, two second telescopic rods, two reset springs and two second hinge joints. The base plate is fixedly connected to the bottom of the base and can move up and down synchronously with the base. The circular shaft is fixed on one side of the base plate. The lower pressure plate is movably sleeved on the outer surface of the circular shaft and can rotate freely around the circular shaft.

[0013] As a further improvement of the present invention: two reset springs are respectively disposed on the inner walls of the two first telescopic rods, and the bottom of the reset springs abuts against the bottom of the inner wall of the first telescopic rods for resetting the first telescopic rods and the second telescopic rods, and one side of the two first telescopic rods is fixedly disposed on the bottom of the base plate.

[0014] As a further improvement of the present invention: one end of each of the two second telescopic rods is hinged to one side of the lower pressure plate via a second hinge joint, and the other end is hinged to the corresponding first telescopic rod; the other end of the lower pressure plate corresponds to the switch knife and is used to press down the switch knife to realize the forced tripping of the intelligent circuit breaker.

[0015] As a further improvement of the present invention: the limiting component includes two lower baffles and two upper baffles; the two lower baffles are respectively fixed on one side of the two first slide rails, for supporting and limiting the support plate, restricting the movement of the support plate and providing stable bottom support for the support plate.

[0016] As a further improvement of the present invention: the two upper baffles are respectively slidably disposed on the inner walls of the two first slide rails, and can slide along one side of the first slide rails.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows: This invention, through a protective plate, a first buffer spring, a second buffer spring, and a cylinder protection structure, can preferentially withstand the impact force of external objects such as forklifts, trolleys, and construction equipment. It absorbs impact energy and slows down the impact speed through elastic deformation, preventing the impact force from being directly transmitted to the intelligent circuit breaker body. This effectively prevents damage to the circuit breaker casing and internal components, addressing the pain point of existing intelligent circuit breakers lacking effective impact protection and being prone to equipment failure due to impacts. At the same time, through the linkage between the protective transmission component and the tripping execution component, the impact force can be efficiently converted into tripping power, triggering the lower pressure plate to precisely press down the switch, realizing the forced tripping of the intelligent circuit breaker. The reset spring and the lower pressure plate ensure that the tripping execution component does not automatically reset after tripping, preventing the switch from springing back and closing. Attached Figure Description

[0018] Figure 1 This invention presents a schematic diagram of the overall three-dimensional structure of an intelligent circuit breaker with safety protection.

[0019] Figure 2This invention presents a partial three-dimensional structural diagram of an intelligent circuit breaker with safety protection.

[0020] Figure 3 This is a schematic diagram of the structure of the protective transmission component in the embodiments of this application.

[0021] Figure 4 This is a cross-sectional view of the cylinder and hollow cylinder in the embodiments of this application.

[0022] Figure 5 This is a cross-sectional view of the tripping execution component in an embodiment of this application.

[0023] Figure 6 This is a cross-sectional view of the first telescopic rod in an embodiment of this application.

[0024] Figure 7 This is a schematic diagram showing the positions of the lower pressure plate and the switch in an embodiment of this application.

[0025] Figure 8 for Figure 2 Enlarged diagram of point A in the middle.

[0026] Legend: 1. Mounting bracket; 101. First slide rail; 102. Second slide rail; 103. Intelligent circuit breaker body; 104. Knife switch; 2. Support plate; 201. Cylinder; 202. First piston plate; 203. Pressure-bearing rod; 204. Protective plate; 205. First buffer spring; 206. Lower baffle; 207. Upper baffle; 3. Hollow cylinder; 301. Second piston plate; 302. Push rod; 303. Second buffer spring; 304. Round rod; 305. Base; 306. Guide pipe; 307. First hinge joint; 308. Support rod; 4. Base plate; 401. Round shaft; 402. Lower pressure plate; 403. First telescopic rod; 404. Second telescopic rod; 405. Return spring; 406. Second hinge joint. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 8 This embodiment provides a smart circuit breaker with safety protection, which aims to solve the technical problems of existing smart circuit breakers that lack effective impact protection structure, are prone to malfunction when impacted, are prone to automatic reset after tripping, and are inconvenient to maintain. It is suitable for outdoor, workshop and other scenarios where it is installed independently without cabinet. It adopts a pure mechanical passive structure throughout and does not require external power supply.

[0029] Specifically, the intelligent circuit breaker includes a mounting bracket 1, a protective transmission assembly, a tripping execution assembly, and a limit assembly. The protective transmission assembly, tripping execution assembly, and limit assembly are all mounted on the mounting bracket 1. The circuit breaker is characterized by further including: two support rods 308, two guide pipes 306, two first hinge joints 307, two round rods 304, and a base 305. The support rods 308, guide pipes 306, first hinge joints 307, round rods 304, and base 305 work together with the protective transmission assembly to realize power transmission and conversion.

[0030] During use, the protective transmission component absorbs external impact force and provides initial buffering, while converting the impact force into gas pressure and mechanical power. The tripping execution component then converts the mechanical power into a tripping action, achieving forced tripping of the intelligent circuit breaker. The limit component supports and limits the protective transmission component to prevent excessive movement of the component and structural damage. It also facilitates maintenance personnel in performing repair and maintenance operations on the intelligent circuit breaker. All components work together to ensure that the equipment can trip quickly and reliably when impacted, and will not automatically reset after tripping, thus ensuring power distribution safety.

[0031] Please see Figures 1 to 8 In one embodiment, the protective transmission assembly includes two first slide rails 101, multiple second slide rails 102, a smart circuit breaker body 103, a knife switch 104, two support plates 2, two cylinders 201, two first piston plates 202, and two pressure rods 203; the two first slide rails 101 are symmetrically installed on one side of the mounting bracket 1, the multiple second slide rails 102 are installed on the same side of the two first slide rails 101, and the smart circuit breaker body 103 is fixed to one side of one of the second slide rails 102.

[0032] Specifically, the two first slide rails 101 adopt a groove structure and are symmetrically welded to one side of the mounting bracket 1. The support plate 2 can slide on the inner wall of the two first slide rails 101. It should be noted that the slide rail is an indispensable component in existing intelligent circuit breakers. Whether it is the component installation and position adjustment of conventional circuit breakers or the power transmission of protective circuit breakers, the support and guidance of the slide rail are indispensable. In this invention, the core protective transmission components such as the support plate 2 and the cylinder 201 are directly installed in the first slide rail 101. The support plate 2 can be quickly slid through the slide rail, driving the related components to move and reducing costs.

[0033] Furthermore, the switch 104 is disposed on one side of the intelligent circuit breaker body 103, two support plates 2 are respectively slidably disposed on the inner walls of the two first slide rails 101, two cylinders 201 are respectively fixed on one side of the two support plates 2, two first piston plates 202 are respectively movably embedded in the inner walls of the two cylinders 201, and one end of the two pressure rods 203 is respectively fixedly connected to one side of the two first piston plates 202. Through the linkage of the above components, the external impact force is converted into the power to drive the switch 104 to open.

[0034] Specifically, the support plate 2 can drive the cylinder 201 fixed on it to move. The cylinder 201, as a gas pressure bearing component, is movably embedded with the first piston plate 202 to ensure gas sealing performance and avoid power transmission loss caused by gas leakage. This ensures that the gas pressure converted from the impact force can stably act on subsequent components. The fixed connection between the pressure rod 203 and the first piston plate 202 can directly transmit the external impact force borne by the protective plate 204 to the first piston plate 202, realizing the efficient conversion of impact force into gas pressure and providing sufficient power for subsequent tripping action. The knife switch 104 is integrated into the main body of the intelligent circuit breaker 103 and has a power-off function.

[0035] Please see Figures 1 to 8 In one embodiment, the protective transmission assembly further includes a protective plate 204, two first buffer springs 205, two hollow cylinders 3, two second piston plates 301, two push rods 302, and two second buffer springs 303. The protective plate 204 is fixedly connected to the other ends of the two pressure-bearing rods 203 to absorb external impact forces. The two first buffer springs 205 are respectively fixed to the ends of the cylinders 201 away from the pressure-bearing rods 203. The two hollow cylinders 3 are symmetrically arranged. The two second piston plates 301 are respectively movably embedded in the inner walls of the two hollow cylinders 3. One end of each of the two push rods 302 is fixedly connected to the two second piston plates 301. The two second buffer springs 303 are respectively movably sleeved on the outer surfaces of the two push rods 302. The protective transmission assembly realizes impact force absorption, buffering, and power conversion. The impact force transmitted by the bearing rod 203 is received, and the connection between impact buffering and power transmission is completed. This is the core of realizing the linkage between impact protection and forced tripping. Among them, the protective plate 204, as the direct bearing component of the impact force, is fixedly connected to the two bearing rods 203. It can evenly transmit the external impact force to the two bearing rods 203, avoiding excessive force on one side and damage to the components. At the same time, it can disperse the impact force and reduce the impact of rigid impact on subsequent components. The first buffer spring 205 is fixed at the end of the cylinder 201 away from the bearing rod 203. It can undergo elastic deformation when the first piston plate 202 is moved by the impact, further absorbing the impact energy and slowing down the transmission speed of the impact force, playing a secondary buffering role and preventing the impact force from acting directly on the intelligent circuit breaker body 103, thus achieving dual protection.

[0036] Please see Figures 1 to 8 In one embodiment, two second buffer springs 303 are respectively located between the second piston plate 301 and the end of the hollow cylinder 3. They are used to store elastic potential energy and realize the automatic reset of the push rod 302 and the second piston plate 301. The initial state is the naturally extended state. When the second piston plate 301 moves under the push of high pressure gas, the two second buffer springs 303 are compressed and stored elastic potential energy. When the impact force disappears, the elastic potential energy is released, which can drive the push rod 302 and the second piston plate 301 to reset quickly.

[0037] Furthermore, when the second piston plate 301 moves under the pressure of high-pressure gas, the second buffer spring 303 is compressed, further reducing the instantaneous impact force. At the same time, the second buffer spring 303 ensures that after the impact, the push rod 302 and the second piston plate 301 quickly return to their initial positions, thereby driving the cylinder 201, the first piston plate 202, the pressure rod 203 and the protective plate 204 to reset synchronously, so that the entire protective transmission assembly returns to the state of being protected.

[0038] Please see Figures 1 to 8 In one embodiment, two first hinge joints 307 are respectively fixed on opposite sides of two push rods 302, and two round rods 304 are respectively sleeved on the outer surface of two support rods 308 and can rotate freely around the corresponding support rods 308. The first hinge joints 307 and round rods 304 realize the structure of converting linear power to rotational power, connect the linear movement of push rods 302 and the up and down movement of base 305, complete the key conversion of power transmission form, and are the linkage between the protective transmission component and the circuit breaker execution component.

[0039] Please see Figures 1 to 8 In one embodiment, two support rods 308 are fixedly installed on the inner wall of the base 305, and one end of two guide pipes 306 are respectively connected to two cylinders 201 and the other end is respectively connected to two hollow cylinders 3. This is used to realize the flow of gas between the cylinders 201 and the hollow cylinders 3, and to convert the gas pressure into mechanical movement power. The support rods 308 and guide pipes 306 respectively play the roles of support and positioning and gas conduction, corresponding to the transmission of mechanical power and gas power, respectively. The guide pipes 306 serve as the gas flow channel between the cylinders 201 and the hollow cylinders 3, and conduct the high-pressure gas generated by the compression in the cylinders 201 to the interior of the hollow cylinders 3 to provide power for the second piston plate 301. It is the carrier for realizing the power transmission after the impact force is converted into gas pressure.

[0040] Please see Figures 1 to 8In one embodiment, the circuit breaker execution assembly includes a base plate 4, a circular shaft 401, a lower pressure plate 402, two first telescopic rods 403, two second telescopic rods 404, two reset springs 405, and two second hinge joints 406. The base plate 4 is fixedly connected to the bottom of the base 305 and can move up and down synchronously with the base 305. The circular shaft 401 is fixed to one side of the base plate 4, and the lower pressure plate 402 is movably sleeved on the outer surface of the circular shaft 401 and can rotate freely around the circular shaft 401.

[0041] Specifically, the tripping execution component implements the forced tripping function mechanism, which converts the mechanical power transmitted by the protective transmission component into the tripping action of pressing down the switch 104, while ensuring that it does not automatically reset after tripping, thus ensuring the safety of the equipment's power distribution. The base plate 4 serves as the mounting foundation for the tripping execution component and is fixedly connected to the base 305. It can move up and down synchronously with the base 305, transmitting the vertical power transmitted by the base 305 to components such as the round shaft 401 and the first telescopic rod 403 installed on it, thereby realizing the reception and transmission of power.

[0042] Please see Figures 1 to 8 In one embodiment, two reset springs 405 are respectively disposed on the inner walls of the two first telescopic rods 403, and the bottom of the reset springs 405 abuts against the bottom of the inner wall of the first telescopic rods 403, for resetting the first telescopic rods 403 and the second telescopic rods 404. One side of the two first telescopic rods 403 is fixedly disposed on the bottom of the base plate 4. The reset springs 405 are disposed on the inner walls of the first telescopic rods 403, with their bottom abutting against the bottom of the inner wall of the first telescopic rods 403 and their top abutting against the end of the second telescopic rods 404. When the base 305 moves upward, the second telescopic rods 404 contract towards the inner wall of the first telescopic rods 403, squeezing the reset springs 405 to cause elastic deformation and store elastic potential energy. At this time, the elastic resistance of the reset springs 405 can slow down the contraction speed of the second telescopic rods 404. When the circuit breaker is opened and the components are reset, the elastic potential energy is released, pushing the second telescopic rods 404 to extend and reset, thereby driving the first telescopic rods 403 and the lower pressure plate 402 to return to their initial state.

[0043] Please see Figures 1 to 8 In one embodiment, one end of each of the two second telescopic rods 404 is hinged to one side of the lower pressure plate 402 via a second hinge joint 406, and the other end is hinged to the corresponding first telescopic rod 403; the other end of the lower pressure plate 402 corresponds to the switch 104 and is used to press down the switch 104 to force the intelligent circuit breaker to open.

[0044] Please see Figures 1 to 8In one embodiment, the limiting component includes two lower baffles 206 and two upper baffles 207. The two lower baffles 206 are respectively fixed to one side of the two first slide rails 101, and are used to support and limit the support plate 2, restrict the movement stroke of the support plate 2 and provide stable bottom support for the support plate 2. The two upper baffles 207 are respectively slidably disposed on the inner wall of the two first slide rails 101 and can slide along one side of the first slide rail 101. The limiting component provides bidirectional limiting and support for the support plate 2, which not only avoids structural damage to the protective transmission component due to excessive movement, but also provides convenience for equipment maintenance and repair.

[0045] Working Principle: When an external object such as a forklift, trolley, or construction equipment impacts the protective plate 204, the protective plate 204 experiences an impact force, causing the two pressure rods 203 to move backward synchronously. The two pressure rods 203 respectively push the first piston plates 202 inside the two cylinders 201 to compress. During the movement of the two first piston plates 202, they compress the two first buffer springs 205 respectively. The elastic deformation of the first buffer springs 205 absorbs the rigid impact energy generated by the impact, reducing the impact force and preventing it from being directly transmitted to the intelligent circuit breaker body 103, thus protecting the intelligent circuit breaker body 103 from damage. When the two first piston plates 202 compress inside the corresponding cylinders 201, the gas inside the two cylinders 201 is squeezed, increasing the pressure. The high-pressure gas flows from inside the two cylinders 201 into the two hollow cylinders 3 through the two guide pipes 306, distributing the pressure to the second piston plates 301 inside the two hollow cylinders 3. Without generating thrust, the two second piston plates 301, driven by the high-pressure gas, drive the push rods 302 fixedly connected to them to move synchronously relative to each other. The two second buffer springs 303 are stretched synchronously to store elastic potential energy. When the two push rods 302 move, they drive the first hinge joints 307 on their opposite sides to move synchronously. Since the two round rods 304 are respectively sleeved on the outer surface of the two support rods, and the support rods 308 are fixed to the inner wall of the base 305, the round rods 304 rotate about the support rods 308 as the axis, thereby driving one end of the two round rods 304 to press down on the base 305, pushing the base 305 to move downward. Since the base plate 4 is fixedly connected to the bottom of the base 305, the base plate 4 moves downward synchronously with the base 305, realizing the conversion of power from gas pressure to mechanical movement. Through the buffering of the first buffer spring 205, the second buffer spring 303 and the gas compression buffer, the impact energy is effectively absorbed, and the impact force is prevented from being directly transmitted to the circuit breaker body. When the base 305 moves the base plate 4 downward, the base plate 4 moves the two first telescopic rods 403 downward simultaneously. The first telescopic rods 403 pull the lower pressure plate 402 through the second telescopic rod 404 and the second hinge joint 406. At this time, the second telescopic rod 404 retracts into the first telescopic rod 403, squeezing the return spring 405 on the inner wall of the first telescopic rod 403. The return spring 405 undergoes elastic deformation and stores elastic potential energy. The lower pressure plate 402 rotates in the opposite direction around the circular shaft 401 to realize the downward action. When pressed down, it accurately acts on the switch 104, triggering forced opening. After the switch 104 is forced to open by the lower pressure plate 402, the elastic potential energy of the second buffer spring 303 is released, driving the two push rods 302 and the two second piston plates 301 to reset. The high-pressure gas flows back to the two cylinders 201 through the two guide pipes 306 respectively. The two first buffer springs 205 push the two second piston plates 301 to reset. The piston plate 202, two pressure rods 203, and protective plate 204 are reset. At the same time, the elastic potential energy of the reset spring 405 on the inner wall of the first telescopic rod 403 is released, pushing the second telescopic rod 404 to extend and reset, causing the first telescopic rod 403 and the second telescopic rod 404 to return to their initial state. Since the base 305 loses the downward pressure of the round rod 304, it moves upward synchronously with the reset of the push rod 302, causing the base plate 4 to move upward synchronously. At this time, the base plate 4 drives the two first telescopic rods 403 to move upward synchronously, pushing the lower pressure plate 402 to change its angle around the round shaft 401. Since the two reset springs 405 only adjust their posture and do not generate upward pressure, they will not generate upward thrust on the switch 104, nor will they trigger the opening reset. The switch 104 is already in the open position and there is no upward reset driving force. Therefore, the switch 104 remains in the open state and will not automatically spring back to reset, ensuring the power distribution safety after the switch is opened. When maintenance or other operations are required on the intelligent circuit breaker body 103, and to avoid the protective plate 204 obstructing 103, the upper baffles 207 on the inner walls of the two first slide rails 101 can be slid upward to a suitable height, and then the two support plates 2 can be slid upward so that the two support plates 2 are supported on the upper side of the two upper baffles 207. The upper baffles 207 provide stable support and limit the two support plates 2. At this time, the protective plate 204, the pressure rod 203 and other components are all in a high position with the support plates 2, no longer obstructing the intelligent circuit breaker body 103, which facilitates maintenance personnel to carry out maintenance and other related operations.

[0046] In summary, this invention uses a protective plate 204 to receive external impact force, which drives the two pressure-bearing rods 203 to move, pushing the two first piston plates 202 to compress the two first buffer springs 205 to buffer the impact force. Simultaneously, it compresses the gas inside the two cylinders 201, which is then conducted to the two hollow cylinders 3 via two guide pipes 306. This causes the two second piston plates 301 and push rods 302 to move, pressing down on the base 305 via the first hinge joint 307 and round rod 304, thus moving the base plate 4. Furthermore, the coordinated movement of the first telescopic rod 403, the second telescopic rod 404, and the second hinge joint 406 achieves downward pressure. The one-way action of plate 402 means that when the base plate 4 moves down, the lower pressure plate 402 presses down to force the intelligent circuit breaker body 103 to open. When the base plate 4 rises, the lower pressure plate 402 only changes its angle and does not trigger the opening or drive the switch to reset. Ultimately, the intelligent circuit breaker body 103 is forced to open without automatic reset. At the same time, the lower baffle 206 supports and limits the support plate 2. After sliding the upper baffle 207 upward, the support plate 2 and the protective plate 204 can be supported and limited at a high position to prevent the protective plate 204 from obstructing the intelligent circuit breaker body 103, which facilitates maintenance and other operations.

[0047] The above-mentioned models are all commercially available products in the prior art. This application is only used as an example of an embodiment and does not limit the use of other equivalent models.

[0048] All standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart circuit breaker with safety protection, comprising a mounting bracket (1), a protective transmission assembly, a tripping execution assembly, and a limit assembly, wherein the protective transmission assembly, the tripping execution assembly, and the limit assembly are all mounted on the mounting bracket (1), characterized in that, Also includes: Two support rods (308), two guide tubes (306), two first hinge joints (307), two round rods (304) and a base (305); The support rod (308), guide pipe (306), first hinge joint (307), round rod (304) and base (305) work together with the protective transmission assembly to realize power transmission and conversion; The protective transmission assembly includes two first slide rails (101), multiple second slide rails (102), a smart circuit breaker body (103), a knife switch (104), two support plates (2), two cylinders (201), two first piston plates (202), and two pressure rods (203). Two first slide rails (101) are symmetrically installed on one side of the mounting bracket (1), and multiple second slide rails (102) are installed on the same side of the two first slide rails (101). The intelligent circuit breaker body (103) is fixed on one side of one of the second slide rails (102). The knife switch (104) is set on one side of the intelligent circuit breaker body (103). Two support plates (2) are slidably set on the inner wall of the two first slide rails (101). Two cylinders (201) are fixed on one side of the two support plates (2). Two first piston plates (202) are movably embedded in the inner wall of the two cylinders (201). One end of the two pressure rods (203) is fixedly connected to one side of the two first piston plates (202).

2. The intelligent circuit breaker with safety protection according to claim 1, characterized in that: The protective transmission assembly also includes a protective plate (204), two first buffer springs (205), two hollow cylinders (3), two second piston plates (301), two push rods (302), and two second buffer springs (303). The protective plate (204) is fixedly connected to the other end of the two pressure rods (203) to bear external impact force. The two first buffer springs (205) are respectively fixed to the end of the cylinder (201) away from the pressure rod (203). The two hollow cylinders (3) are symmetrically arranged. The two second piston plates (301) are respectively movably embedded in the inner wall of the two hollow cylinders (3). One end of the two push rods (302) is respectively fixedly connected to the two second piston plates (301). The two second buffer springs (303) are respectively movably sleeved on the outer surface of the two push rods (302).

3. The intelligent circuit breaker with safety protection according to claim 2, characterized in that: The two second buffer springs (303) are located between the second piston plate (301) and the end of the hollow cylinder (3), respectively, to store elastic potential energy and realize the automatic reset of the push rod (302) and the second piston plate (301).

4. The intelligent circuit breaker with safety protection according to claim 3, characterized in that: The two first hinge joints (307) are respectively fixed on the opposite sides of the two push rods (302), and the two round rods (304) are respectively sleeved on the outer surface of the two support rods (308) and can rotate freely around the corresponding support rods (308).

5. The intelligent circuit breaker with safety protection according to claim 4, characterized in that: The two support rods (308) are fixedly installed on the inner wall of the base (305). One end of the two guide pipes (306) is connected to the two cylinders (201) respectively, and the other end is connected to the two hollow cylinders (3) respectively, so as to realize the flow of gas between the cylinders (201) and the hollow cylinders (3) and convert the gas pressure into mechanical movement power.

6. The intelligent circuit breaker with safety protection according to claim 1, characterized in that: The circuit breaker actuator includes a base plate (4), a circular shaft (401), a lower pressure plate (402), two first telescopic rods (403), two second telescopic rods (404), two reset springs (405), and two second hinge joints (406). The base plate (4) is fixedly connected to the bottom of the base (305) and can move up and down synchronously with the base (305). The circular shaft (401) is fixed on one side of the base plate (4). The lower pressure plate (402) is movably sleeved on the outer surface of the circular shaft (401) and can rotate freely around the circular shaft (401).

7. The intelligent circuit breaker with safety protection according to claim 6, characterized in that: Two reset springs (405) are respectively disposed on the inner walls of the two first telescopic rods (403), and the bottom of the reset spring (405) abuts against the bottom of the inner wall of the first telescopic rod (403) for resetting the first telescopic rod (403) and the second telescopic rod (404). One side of the two first telescopic rods (403) is fixedly disposed on the bottom of the base plate (4).

8. The intelligent circuit breaker with safety protection according to claim 7, characterized in that: One end of each of the two second telescopic rods (404) is hinged to one side of the lower pressure plate (402) via a second hinge joint (406), and the other end is hinged to the corresponding first telescopic rod (403); the other end of the lower pressure plate (402) corresponds to the switch (104) and is used to press down the switch (104) to realize the forced tripping of the intelligent circuit breaker.

9. The intelligent circuit breaker with safety protection according to claim 8, characterized in that: The limiting component includes two lower baffles (206) and two upper baffles (207); the two lower baffles (206) are respectively fixed on one side of the two first slide rails (101) for supporting and limiting the support plate (2), restricting the movement of the support plate (2) and providing stable bottom support for the support plate (2).

10. The intelligent circuit breaker with safety protection according to claim 9, characterized in that: The two upper baffles (207) are respectively slidably disposed on the inner walls of the two first slide rails (101) and can slide along one side of the first slide rail (101).

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