Power distribution box with emergency function

Abstract

The invention provides a power distribution box with an emergency function, and belongs to the technical field of power distribution boxes. Comprising a back plate, an outer shell is connected to the back plate in a sliding mode, and an emergency braking assembly is used for installing a power supply plug of power generation equipment on a power distribution box and connected with the back plate and an end baffle. According to the power distribution box, the emergency braking assembly is arranged, so that when the power distribution box has an emergency fault and needs to be connected with external power generation equipment, the power strip originally stored in the back plate automatically slides out of the back plate, a worker can plug a power supply plug of the power generation equipment into the power strip, and direct power supply is achieved; by means of the arrangement that the power strip automatically slides out of the back plate, the operation step that a worker slides the outer shell to open the back plate is omitted, the operation that the worker searches the insertion position of the power strip is also omitted, and the power supply operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of power distribution box technology, and in particular to a power distribution box with emergency function. Background Technology

[0002] A power distribution box is a terminal box in a power system used to receive power from an upstream power source and safely and rationally distribute electrical energy to multiple downstream electrical devices or circuits. It is a key link connecting the main power supply line with specific electrical devices.

[0003] In existing technologies, when a power distribution box malfunctions, it needs to activate its emergency protection function to prevent fires while ensuring the equipment remains undamaged. To enable continuous power supply, a generator (e.g., a generator truck) is typically connected to the power distribution box's incoming switch via a cable. However, since the incoming switch is normally connected to the incoming cable, the incoming cable must be disconnected from the switch before connecting the generator. This process is complex, increases the workload of staff, reduces maintenance efficiency, and delays power supply. Therefore, this invention provides a power distribution box with an emergency function to meet this need. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a power distribution box with emergency function. By setting an emergency braking component, when the power distribution box fails in an emergency and needs to be connected to an external power generation device, the power strip originally stored in the back panel can automatically slide out from the back panel, and the operator can then plug the power supply plug of the power generation device into the power strip to achieve direct power supply. The above setting can solve the problems of low operation efficiency and high difficulty when connecting the power distribution box to the external power generation device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A power distribution box with emergency function includes a back panel, a housing slidably connected to the back panel, both the back panel and the housing having a rectangular outline, side baffles symmetrically installed on both sides of the back panel, an end baffle fixedly connected to the end of the back panel, mounting pins fixedly connected to the four corners of the back panel, a pull plate fixedly connected to the end of the housing away from the end baffle, a cable restraint frame and a mounting rail fixedly connected to the inner wall of the back panel, a cover plate snapped onto the top of the cable restraint frame, electrical components mounted on the mounting rail, wire harnesses of the electrical components arranged on the cable restraint frame, and an emergency braking assembly for installing the power plug of a generator on the power distribution box, the emergency braking assembly being connected to both the back panel and the end baffles.

[0006] Optionally, the emergency braking assembly includes a sliding guide rail fixedly connected to the inner wall of the back plate, a constraint frame slidably connected to the top of the sliding guide rail, a plug bar fixedly connected to the top of the constraint frame, and a rotating plate rotatably connected to the end of the back plate. A second fixing plate is fixedly connected to the end of the rotating plate, a positioning plate is fixedly connected to the outer wall of the end plate, and first fixing plates with the same outline as the second fixing plate are symmetrically installed on both sides of the end plate. A positioning rod is fixedly connected to the positioning plate.

[0007] Optionally, side wings are symmetrically installed on both sides of the sliding guide rail, and U-shaped wrapping plates are symmetrically installed on both sides of the constraint frame, with the U-shaped wrapping plates wrapped around the outer wall of the side wings.

[0008] Optionally, the top of the constraint skeleton is fixedly connected to two side skeletons, and the two ends of the plug are clamped and fixed between the two side skeletons, the contours of the side skeletons being adapted to the contours of the two ends of the plug.

[0009] Optionally, a spring constraint frame is fixedly connected to one end of the constraint frame away from the side frame, and a first spring is fixedly connected to the inner wall of the mounting plate. One end of the first spring is fixed to the mounting plate, and the other end of the first spring is fixed to the side frame near the mounting plate. The spring constraint frame is located on top of the first spring.

[0010] Optionally, a rotating shaft is rotatably connected to the end of the rotating plate away from the second fixed plate, and the rotating plate and the back plate are rotatably connected together through the rotating shaft.

[0011] Optionally, a sliding plate is slidably connected to the outer wall of the positioning rod, and an insertion rod is fixedly connected to the side of the sliding plate away from the positioning plate. Both the second fixing plate and the first fixing plate are provided with slots corresponding to the position of the insertion rod, and the insertion rod is inserted through and into both the second fixing plate and the first fixing plate.

[0012] Optionally, a second spring is fixedly connected between the slide plate and the positioning plate, with one end of the second spring fixed to the positioning plate and the other end of the second spring fixed to the slide plate.

[0013] Optionally, the back plate, the side baffle, the end baffle, and the mounting pin are integrally bent sheet metal structures, and the outer shell and the pull plate are integrally bent sheet metal structures.

[0014] Optionally, the back plate is provided with heat dissipation holes, the side baffle is provided with lightweight grooves, and indicator lights and control knobs are fixedly connected to the outer wall of the housing.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, by setting up an emergency braking component, in the event of an emergency failure of the power distribution box and the need to connect to external power generation equipment, the operator can press two sliding plates to disengage the rotating plate and the back plate from their respective limits. At this time, the power strip, which was originally stored in the back plate, slides out from the back plate under the elastic force of the first spring. The operator can then plug the power supply plug of the power generation equipment into the power strip to achieve direct power supply. This automatic sliding out design of the power strip from the back plate not only eliminates the need for the operator to slide the outer casing to open the back plate, but also eliminates the need for the operator to find the power strip's plug-in position, thus improving the efficiency of power supply operation. It makes it simpler and more convenient for the operator to complete the power supply operation in an emergency, preventing power supply failure due to operational errors. Compared with existing technologies, this design simplifies the complexity of power supply operation, avoids delays in power supply time, and improves power supply reliability. Since the operator no longer needs to disconnect the incoming cable from the incoming switch, it reduces the labor intensity of the operator and improves maintenance efficiency.

[0016] Compared to existing technologies, this power distribution box mainly consists of two metal plates: a back plate and an outer shell. The outer shell is slidably connected inside the back plate, and the back plate and outer shell are secured by side and end baffles. This structure allows the outer shell to isolate and protect the electrical components installed inside the back plate from the outside environment. At the same time, the back plate secures and limits the outer shell. The two structures complement each other and function synergistically, significantly improving the efficiency of installation and maintenance of electrical components. In addition, the back plate and outer shell are integrally bent into shape using a bending machine during actual production. The formed back plate and outer shell can be directly used together, greatly reducing the cost of product production and assembly and meeting practical usage requirements. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0018] Figure 1 A first-person perspective 3D structural diagram of a power distribution box with emergency functions; Figure 2 A second-view 3D structural diagram of a power distribution box with emergency function; Figure 3 A three-dimensional structural diagram of a power distribution box with emergency function after removing the outer casing; Figure 4 This is a magnified three-dimensional structural diagram of the outer shell; Figure 5 This is a magnified three-dimensional structural diagram of the back panel; Figure 6 An enlarged 3D structural diagram of the cable restraint frame, cover plate, and mounting rail; Figure 7 An enlarged three-dimensional structural diagram of the cable restraint frame and cover plate; Figure 8 This is a magnified 3D schematic diagram of the guide rail structure; Figure 9 Enlarged 3D structural diagram of the backplate and emergency braking assembly; Figure 10 A first-person perspective 3D structural diagram of the emergency braking assembly; Figure 11 A schematic diagram of the second-view 3D structure for the emergency braking assembly; Figure 12 A magnified three-dimensional structural diagram of the sliding guide rail and the constraint frame in combination; Figure 13 A schematic diagram of the enlarged three-dimensional structure of the constraint skeleton; Figure 14 A magnified three-dimensional structural diagram of the backplate and the rotating plate in combination; Figure 15 This is a magnified three-dimensional schematic diagram of the rotating plate; Figure 16 This is a magnified three-dimensional structural diagram of the rotating plate after it is unfolded and combined with the back plate.

[0019] Figure label: 1. Back panel; 2. Side panel; 3. End panel; 4. Positioning plate; 5. First fixing plate; 6. Positioning rod; 7. Mounting pin; 8. Housing; 9. Pull plate; 10. Indicator light; 11. Control knob; 12. Cable restraint frame; 13. Cover plate; 14. Mounting rail; 15. Sliding rail; 16. Side wing; 17. Mounting plate; 18. Restraint frame; 19. U-shaped wrapping plate; 20. Side frame; 21. Spring restraint frame; 22. Power strip; 23. First spring; 24. Turning plate; 25. Second fixing plate; 26. Rotating shaft; 27. Slide plate; 28. Insert rod; 29. ​​Second spring.

[0020] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0021] The following is a detailed description of a power distribution box with emergency function provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0022] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0023] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0024] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0025] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0026] like Figures 1 to 8As shown, an embodiment of the present invention provides a power distribution box with emergency function, including a back plate 1, a housing 8 slidably connected to the back plate 1, both the back plate 1 and the housing 8 having a rectangular outline, side baffles 2 symmetrically installed on both sides of the back plate 1, the side baffles 2 having lightweight grooves, end baffles 3 fixedly connected to the ends of the back plate 1, mounting pins 7 fixedly connected to the four corners of the back plate 1, and heat dissipation holes opened on the back plate 1. The back plate 1, side baffles 2, end baffles 3 and mounting pins 7 are integrated. The outer shell 8 is a sheet metal structure formed by bending. A pull plate 9 is fixedly connected to one end of the outer shell 8 away from the end baffle 3. The outer shell 8 and the pull plate 9 are a sheet metal structure formed by bending. An indicator light 10 and a control knob 11 are fixedly connected to the outer wall of the outer shell 8. A cable constraint frame 12 and a mounting rail 14 are fixedly connected to the inner wall of the back plate 1. A cover plate 13 is snapped onto the top of the cable constraint frame 12. Electrical components are installed on the mounting rail 14. The wire harnesses on the electrical components are arranged on the cable constraint frame 12.

[0027] The power distribution box provided in this application is a wall-mounted box structure. Compared with the prior art, the biggest structural difference is that this power distribution box is mainly composed of two metal plates: a back plate 1 and an outer shell 8. The outer shell 8 is slidably connected inside the back plate 1. The back plate 1 and the outer shell 8 are wrapped and limited by side baffles 2 and end baffles 3. The side baffles 2 are located on both sides of the outer shell 8 and can wrap and limit the sides and top of the outer shell 8. The end baffles 3 are located at the ends of the outer shell 8. When the outer shell 8 slides to the position of the end baffles 3, the end baffles 3 can block and limit the ends of the outer shell 8. At this time, the back plate 1 completely wraps and covers the outer shell 8. This structural arrangement allows the outer shell 8 to isolate and protect the electrical components installed inside the back plate 1 from the outside world. At the same time, the back plate 1 wraps and limits the outer shell 8. The two complement each other in structure and function, which greatly improves the efficiency of workers in installing and repairing electrical components.

[0028] Furthermore, since the back plate 1, side baffle 2, end baffle 3 and mounting pin 7 are integrally formed structures, and the outer shell 8 and pull plate 9 are also integrally formed structures, this configuration allows the back plate 1 and outer shell 8 to be integrally bent and formed by a bending machine during the actual production process. The formed back plate 1 and outer shell 8 can be directly used together, which greatly reduces the cost of product production and assembly and meets the actual use requirements.

[0029] In this technical solution, all electrical components used inside the power distribution box are mounted on the mounting rail 14, and all wire harnesses inside the power distribution box are arranged on the cable constraint frame 12. The mounting principle of the electrical components on the mounting rail 14 and the arrangement of the wire harnesses on the cable constraint frame 12 are disclosed as prior art and will not be described in detail here.

[0030] As one implementation method in this embodiment, such as Figures 9 to 13 As shown, the emergency braking assembly is used to install the power supply plug of the generator equipment on the power distribution box. The emergency braking assembly is connected to the back plate 1 and the end baffle 3 respectively. The emergency braking assembly includes a sliding guide rail 15 fixedly connected to the inner wall of the back plate 1. A constraint frame 18 is slidably connected to the top of the sliding guide rail 15. A plug bar 22 is fixedly connected to the top of the constraint frame 18. Side wings 16 are symmetrically installed on both sides of the sliding guide rail 15. U-shaped wrapping plates 19 are symmetrically installed on both sides of the constraint frame 18. The U-shaped wrapping plates 19 wrap around the outer wall of the side wings 16. Two side frames 20 are fixedly connected to the top of the constraint frame 18. The two ends of the plug bar 22 are clamped and fixed between the two side frames 20. The outline of the side frames 20 matches the outline of the two ends of the plug bar 22. A spring constraint frame 21 is fixedly connected to the end of the constraint frame 18 away from the side frames 20. A first spring 23 is fixedly connected to the inner wall of the mounting plate 17. One end of the first spring 23 is fixed to the mounting plate 17, and the other end of the first spring 23 is fixed to the side frame 20 near the mounting plate 17. The spring constraint frame 21 is located on top of the first spring 23.

[0031] In the above structure, the constraint frame 18 is slidably connected to the top of the sliding guide rail 15, and the two are limited by the U-shaped wrapping plate 19 and the side wings 16. The U-shaped wrapping plate 19 has a "U" shape and wraps around the top and bottom of the side wings 16 from top to bottom. This arrangement ensures that the constraint frame 18 will not be misaligned or detached during the sliding process on the top of the sliding guide rail 15. The two ends of the power strip 22 are clamped and fixed between the two side frames 20. Since the contours of the side frames 20 are adapted to the contours of the two ends of the power strip 22, the structural adaptation between the two can ensure the stability of the side frames 20 in fixing the power strip 22. It is worth mentioning that the gap between the two side frames 20 is slightly smaller than the overall length of the power strip 22. Therefore, when the worker puts the power strip 22 into the gap between the two side frames 20, the side frames 20 will apply an inward clamping force to the power strip 22. Under the action of this clamping force, the stability of the power strip 22 can be further guaranteed.

[0032] Furthermore, since the two ends of the first spring 23 are fixed to the mounting plate 17 and the side frame 20 respectively, the elastic force of the first spring 23 can push the constraint frame 18 to slide away from the mounting plate 17 on the sliding guide rail 15. Since the constraint frame 18 is arranged parallel to the top of the sliding guide rail 15, the first spring 23 will not bend or deform during the process of pushing the constraint frame 18 to slide. In addition, the spring constraint frame 21 set on the top of the first spring 23 can further ensure the stability of the expansion and contraction deformation of the first spring 23 and avoid the problem of the first spring 23 getting tangled or knotted.

[0033] Furthermore, when the first spring 23 pushes the constraint frame 18 to slide, the constraint frame 18 can drive the power strip 22 to slide out from the back plate 1. At this time, the staff can plug the power supply plug on the electrical equipment into the power strip 22 to directly supply power. Compared with the existing technology, this setting simplifies the complexity of power supply operation, avoids delays in power supply time, and improves power supply reliability. Since the staff no longer needs to remove the incoming cable from the incoming switch, the labor intensity of the staff is reduced and the maintenance efficiency is improved.

[0034] As one implementation method in this embodiment, such as Figures 14 to 16 As shown, the emergency braking assembly also includes a rotating plate 24 rotatably connected to the end of the back plate 1. A rotating shaft 26 is rotatably connected to the end of the rotating plate 24 away from the second fixed plate 25. The rotating plate 24 and the back plate 1 are rotatably connected together through the rotating shaft 26. The end of the rotating plate 24 is fixedly connected to the second fixed plate 25. A positioning plate 4 is fixedly connected to the outer wall of the end baffle 3. A first fixed plate 5 with the same outline as the second fixed plate 25 is symmetrically installed on both sides of the end baffle 3. A positioning rod 6 is fixedly connected to the positioning plate 4. A sliding plate 27 is slidably connected to the outer wall of the positioning rod 6. An insertion rod 28 is fixedly connected to the side of the sliding plate 27 away from the positioning plate 4. Slots corresponding to the positions of the insertion rod 28 are opened on both the second fixed plate 25 and the first fixed plate 5. The insertion rod 28 is inserted through and inserted into both the second fixed plate 25 and the first fixed plate 5. A second spring 29 is fixedly connected between the sliding plate 27 and the positioning plate 4. One end of the second spring 29 is fixed to the positioning plate 4, and the other end of the second spring 29 is fixed to the sliding plate 27.

[0035] In the above structure, since the insertion rod 28 is inserted through both the first fixed plate 5 and the second fixed plate 25, the rotating plate 24 cannot rotate at the end of the back plate 1 due to the blocking effect of the insertion rod 28. When the operator presses the two slide plates 27 with their index finger and thumb respectively, and moves the two slide plates 27 closer to each other, the insertion rod 28 will disengage from the first fixed plate 5 and the second fixed plate 25. At this time, the rotating plate 24 can rotate at the end of the back plate 1. When the operator stops pressing the slide plate 27, the slide plate 27 will automatically reset under the elastic force of the second spring 29, so as to re-block and fix the second fixed plate 25.

[0036] In summary, the emergency braking assembly has two operating states: State 1: The inserts 28 on both slide plates 27 are simultaneously inserted into the slots on the first fixed plate 5 and the second fixed plate 25. The inserts 28 act as a barrier, preventing the rotating plate 24 from sliding at the end of the back plate 1. At this state, the rotating plate 24 is fixed to the end of the back plate 1 and parallel to the end baffle 3. The constraint frame 18 inside the back plate 1 cannot slide due to the blocking effect of the rotating plate 24, and the first spring 23 is in a folded and tightened state. The rotating plate 24 blocks the outside of the power strip 22 to isolate and protect it from the outside environment. In this state, the power strip 22 is stored inside the back plate 1. Even if the operator slides the outer casing 8 to open the back plate 1, it will not interfere with the structure of the rotating plate 24 and the power strip 22. The electrical components inside the back plate 1 can be inspected and maintained normally. State 2: When an emergency failure occurs in the power distribution box, it is necessary to contact an external power source. When connecting the backup power supply, the operator simultaneously presses the two sliding plates 27, causing the plug rod 28 to disengage from the first fixed plate 5 and the second fixed plate 25. At this time, the end of the constraint frame 18 is no longer blocked by the rotating plate 24. Under the elastic force of the first spring 23, the constraint frame 18 slides out from the back plate 1. At this time, the power strip 22 follows the constraint frame 18 and slides out from the back plate 1. The operator can then plug the power supply plug of the generator into the power strip 22 to achieve direct power supply. This automatic sliding design of the power strip 22 out from the back plate 1 not only eliminates the operator's need to slide the outer shell 8 to open the back plate 1, but also eliminates the operator's need to find the plug position of the power strip 22, further improving the efficiency of power supply operation. This makes it simpler and more convenient for the operator to complete the power supply operation in an emergency, and will not cause power supply failure due to operational errors. Moreover, the operator's operation of opening the rotating plate 24 is simple, the structure is reasonable, and it is more suitable for operation in an emergency.

[0037] The working principle of the technical solution provided by this invention is as follows: During installation, the back plate 1 can be fixed to the wall or mounting bracket using the pre-drilled mounting holes on the mounting pins 7. After installation, the necessary electrical components are installed and fixed on the mounting rails 14, and the wiring harness is arranged in the cable restraint frame 12. After the wiring harness is arranged, the cover plate 13 is snapped and fixed to the top of the cable restraint frame 12 to limit the wiring harness and prevent it from getting tangled during use. After the above operations are completed, the operator holds the outer shell 8 and inserts it from one side of the back plate 1. When the end of the outer shell 8 touches the end baffle 3, the pull plate 9 is located on the back plate 1 at the end opposite to the end baffle 3. At this time, the power distribution box is assembled.

[0038] If the electrical components inside the power distribution box need to be inspected and repaired, the staff can pull the pull plate 9 outward to allow the outer casing 8 to slide out from the back plate 1. After the outer casing 8 slides out, the electrical components inside the back plate 1 are fully exposed, making it convenient for observation and maintenance.

[0039] When the power distribution box experiences an emergency malfunction and needs to be connected to an external power generation device, the operator simultaneously presses the two sliding plates 27, causing the plug rod 28 to disengage from the first fixed plate 5 and the second fixed plate 25. At this time, the end of the constraint frame 18 is no longer blocked by the rotating plate 24. Under the elastic force of the first spring 23, the constraint frame 18 slides out from the back plate 1. At this time, the power strip 22 follows the constraint frame 18 and slides out from the back plate 1. The operator can then plug the power supply plug of the power generation device into the power strip 22 to achieve direct power supply.

[0040] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A power distribution box with emergency function, comprising a back panel, characterized in that, The back plate is slidably connected to the outer shell. Both the back plate and the outer shell have a rectangular outline. Side baffles are symmetrically installed on both sides of the back plate. An end baffle is fixedly connected to the end of the back plate. Mounting pins are fixedly connected to the four corners of the back plate. A pull plate is fixedly connected to the end of the outer shell away from the end baffle. A cable constraint frame and a mounting rail are fixedly connected to the inner wall of the back plate. A cover plate is snapped onto the top of the cable constraint frame. Electrical components are installed on the mounting rail, and the wire harnesses on the electrical components are arranged on the cable constraint frame. An emergency braking assembly is used to install the power supply plug of the generator on the power distribution box. The emergency braking assembly is connected to the back plate and the end baffle respectively.

2. The power distribution box with emergency function according to claim 1, characterized in that, The emergency braking assembly includes a sliding guide rail fixedly connected to the inner wall of the back plate, a constraint frame slidably connected to the top of the sliding guide rail, a plug fixedly connected to the top of the constraint frame, and a rotating plate rotatably connected to the end of the back plate. A second fixing plate is fixedly connected to the end of the rotating plate, a positioning plate is fixedly connected to the outer wall of the end plate, and a first fixing plate with the same outline as the second fixing plate is symmetrically installed on both sides of the end plate. A positioning rod is fixedly connected to the positioning plate.

3. The power distribution box with emergency function according to claim 2, characterized in that, Side wings are symmetrically installed on both sides of the sliding guide rail, and U-shaped wrapping plates are symmetrically installed on both sides of the constraint frame. The U-shaped wrapping plates are wrapped around the outer wall of the side wings.

4. The power distribution box with emergency function according to claim 2, characterized in that, The top of the constraint skeleton is fixedly connected to two side skeletons, and the two ends of the plug are clamped and fixed between the two side skeletons. The outline of the side skeleton is adapted to the outline of the two ends of the plug.

5. The power distribution box with emergency function according to claim 4, characterized in that, A spring constraint frame is fixedly connected to one end of the constraint frame away from the side frame. A first spring is fixedly connected to the inner wall of the mounting plate. One end of the first spring is fixed to the mounting plate, and the other end of the first spring is fixed to the side frame near the mounting plate. The spring constraint frame is located on top of the first spring.

6. The power distribution box with emergency function according to claim 2, characterized in that, The end of the rotating plate away from the second fixed plate is rotatably connected to a rotating shaft, and the rotating plate and the back plate are rotatably connected together through the rotating shaft.

7. The power distribution box with emergency function according to claim 2, characterized in that, A sliding plate is slidably connected to the outer wall of the positioning rod, and an insertion rod is fixedly connected to the side of the sliding plate away from the positioning plate. Both the second fixing plate and the first fixing plate are provided with slots corresponding to the positions of the insertion rods, and the insertion rods are simultaneously inserted through the second fixing plate and the first fixing plate.

8. The power distribution box with emergency function according to claim 7, characterized in that, A second spring is fixedly connected between the slide plate and the positioning plate. One end of the second spring is fixed to the positioning plate, and the other end of the second spring is fixed to the slide plate.

9. The power distribution box with emergency function according to claim 1, characterized in that, The back plate, the side baffle, the end baffle, and the mounting pin are integrally bent sheet metal structures, and the outer shell and the pull plate are integrally bent sheet metal structures.

10. The power distribution box with emergency function according to claim 1, characterized in that, The back plate has heat dissipation holes, the side baffle has lightweight grooves, and indicator lights and control knobs are fixedly connected to the outer wall of the outer shell.

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