Outdoor low-voltage power distribution cabinet with spontaneous combustion protection structure

Abstract

The invention discloses an outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure, and relates to the technical field of power distribution cabinets, the outdoor low-voltage power distribution cabinet comprises a cabinet body, the front side of the cabinet body is provided with a protection door, the side of the cabinet body is provided with a heat dissipation groove, the top side of the interior of the cabinet body is rotatably connected with a rotating barrel, and the interior of the rotating barrel is provided with a fire extinguishing airbag; and a rotating mechanism capable of discharging carbon dioxide gas in the fire extinguishing air bag in a large range is arranged in the cabinet body. According to the outdoor low-voltage power distribution cabinet with the spontaneous combustion protection structure, after a fire occurs, carbon dioxide gas stored in the fire extinguishing air bag is discharged, so that the fire in the cabinet body is controlled, when an adjusting plate moves under the threaded connection effect of a threaded rod, a toothed plate is synchronously driven to move, and the spontaneous combustion protection effect is improved. At the moment, the toothed plate can drive the rotating barrel to rotate through the toothed ring meshed with the toothed plate, and when the rotating barrel rotates, gas leaked from the fire extinguishing airbag can be diffused in a larger range, so that the fire control efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to an outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure. Background Art

[0002] Low-voltage distribution cabinet, commonly known as low-voltage switchgear, is a kind of complete set of power distribution equipment. It is widely used in power users such as power plants, substations, power departments of industrial and mining enterprises, for receiving and distributing electrical energy.

[0003] Prior art 1 (publication number: CN117712857A, Chinese patent with publication date of 2024-03-15) A distribution cabinet protection structure and a distribution cabinet, which include a base, two rotating wheels, two threaded sleeves, two threaded rods, a distribution cabinet and two fans, wherein the distribution cabinet is movably connected to the inner wall of the base, and the two fans are symmetrically fixedly connected to the bottom inner wall of the distribution cabinet. The distribution cabinet is fixed by the rotating wheel driving the clamping plate to move, and the distribution cabinet is protected by the base to prevent the distribution cabinet from being damaged by collision and moisture. The dust and particulate matter in the air are filtered by the filter plate to prevent affecting the service life of components and equipment in the distribution cabinet, and it has good practicality.

[0004] There is also prior art 2 (announcement number: CN215419091U, a Chinese patent with an announcement date of 2022-01-04), a wiring type distribution cabinet and a distribution cabinet wiring device, which belong to the field of distribution cabinets, including a distribution cabinet, the front side of the distribution cabinet is connected to a door body by hinge rotation, the upper end of the distribution cabinet is fixedly connected to an arc cover, the left and right sides of the lower end of the arc cover are respectively fixedly connected to a top plate, and the inside of the arc cover is fixedly connected to a plurality of top rods, and a protective device is fixedly connected to the wiring slot, and the edge of the wiring slot is blocked by the protective device to prevent the power cord from contacting the power cord when passing through the wiring slot, thereby preventing the power cord from being cut and damaged by the edge of the wiring slot, and the card cover presses the upper end of the power cord downward to prevent rainwater from flowing along the power cord to the inside of the distribution cabinet, and through the arrangement of the arc cover, the upper and lower parts of the distribution cabinet are respectively blocked to prevent the lower end of the distribution cabinet from direct contact with the ground and being damaged by moisture and rust.

[0005] Although existing technologies 1 and 2 can protect the distribution cabinet and reduce damage caused by collision, the distribution cabinet body itself cannot be protected from spontaneous combustion. Once a fire occurs in the distribution cabinet, it will not only cause equipment damage and property loss, but may also cause greater safety accidents.

[0006] Therefore, we propose an outdoor low-voltage distribution cabinet with a spontaneous combustion protection structure to solve the above-mentioned problems. Summary of the invention

[0007] The purpose of the present invention is to provide an outdoor low-voltage distribution cabinet with a spontaneous combustion protection structure to solve the problem raised in the above background technology that the distribution cabinet body on the market currently cannot perform spontaneous combustion protection itself. Once a fire occurs in the distribution cabinet, it will not only cause equipment damage and property loss, but may also cause greater safety accidents.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an outdoor low-voltage distribution cabinet with a self-ignition protection structure, comprising a cabinet body, a protective door is arranged on the front side of the cabinet body, and a heat dissipation groove is opened on the side of the cabinet body, a fire blanket is arranged on the front side of the cabinet body, and a rotating shaft is arranged on the side of the cabinet body, and a reeling mechanism capable of lowering the fire blanket is arranged between the side end of the rotating shaft and the inside of the cabinet body, a rotating barrel is rotatably connected to the top side of the interior of the cabinet body, and a fire extinguishing airbag is arranged inside the rotating barrel, and a rotating mechanism capable of discharging carbon dioxide gas inside the fire extinguishing airbag over a large range is arranged inside the cabinet body.

[0009] Preferably, the unwinding mechanism includes a first fuse rope, the side ends of which are fixedly connected to both sides of the rotating shaft, and the inner side of the first fuse rope is fixedly connected to the inner top side of the cabinet, and the rotating shaft is nested and connected to the upper outer side of the cabinet, and a fire blanket is rolled up on the outer side of the rotating shaft, a limiting groove is opened on the side of the cabinet, and a limiting block is nested and connected inside the limiting groove, and a counterweight block is fixedly connected to the outer side of the limiting block, and the counterweight block is fixedly connected below the fire blanket.

[0010] Preferably, the limit block forms a sliding structure through the counterweight block and the limit groove, the rotating shaft forms a rotating structure through the rotating shaft and the cabinet body, and the width of the fire blanket is greater than the width of the protective door.

[0011] Preferably, a guide shaft is fixedly connected to the upper part of the outer side of the cabinet, the outer side of the fire blanket is arranged around the guide shaft and downward, and the inner side of the fire blanket and the outer side of the cabinet are in close contact with each other.

[0012] Preferably, a threaded rod is rotatably connected to the outer side of the cabinet, and a belt transmission structure is provided between the outer end of the threaded rod and the outer side of the rotating shaft, and an adjustment plate is threadedly connected to the outer side of the threaded rod, and the lower end of the adjustment plate is fixedly connected to a fixed plate.

[0013] Preferably, the fixing plates are symmetrically arranged in two groups about the center point of the cabinet, and a connecting plate is fixedly connected between the two groups, and a sealing plate is fixedly connected to the inner side of the fixing plate, and the sealing plate is located just outside the heat dissipation groove, a limiting rod is fixedly connected to the side of the cabinet, the connecting plate is nested and connected to the outside of the limiting rod, and a first spring is fixedly connected between the inner side of the connecting plate and the outer side of the cabinet.

[0014] Preferably, the rotating mechanism includes a tooth plate, the tooth plate is fixedly connected to the inner side of the fixed plate, and the tooth plate is nested and connected to the side of the cabinet, the outer side of the rotating barrel is fixedly connected to a tooth ring, and an exhaust groove is provided on the outer side of the rotating barrel, and the inner side of the rotating barrel is fixedly connected to a fixed frame, the interior of the fixed frame is nested and connected with a thimble, and a second fuse rope is fixedly connected between the inner end of the thimble and the interior of the fixed frame, and a second spring is also fixedly connected between the inner end of the thimble and the interior of the fixed frame, and the fire extinguishing airbag is fixedly connected to the upper inner side of the rotating barrel.

[0015] Preferably, the gear ring and the gear plate are meshed with each other, the rotating barrel and the cabinet body form a rotating structure through the gear ring, and two groups of rotating barrels are arranged front and rear about the center point of the gear plate.

[0016] Preferably, the ejector pins form an elastic structure with the fixing frame through the second spring, and two groups of ejector pins are symmetrically arranged with respect to the fire extinguishing airbag, and the tip ends of the ejector pins are aligned with the fire extinguishing airbag.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The outside of the cabinet is provided with a heat dissipation groove, through which the heat inside the cabinet can be discharged, reducing the possibility of excessive heat accumulation inside the cabinet causing short circuit of internal components of the cabinet.

[0018] When a natural phenomenon occurs in the cabinet, the temperature inside the cabinet rises and the first fuse rope melts as the temperature rises. At this time, the first fuse rope cannot limit the rotating shaft, and the fire blanket wrapped around the outside of the rotating shaft will slide downward under the influence of the gravity of the counterweight block itself, thereby blocking the outside of the protective door and reducing the possibility of the fire inside the cabinet emitting out through the gap between the protective door and the cabinet.

[0019] When the fire blanket slides outward with the counterweight, the fire blanket can be guided by the guide shaft. At the same time, the limit block arranged at the lower end of the counterweight can be moved along the limit groove opened on the outside of the cabinet. At this time, the fire blanket can fit tightly with the outside of the cabinet with the assistance of the guide shaft and the limit block, thereby better preventing the possibility of fire spreading out.

[0020] When the rotating shaft rotates under the driving action of the fire blanket, the threaded rod can be driven to rotate synchronously through the belt transmission structure. At this time, the threaded rod can drive the fixed plate to move through the adjusting plate. When the fixed plate moves, the sealing plate can be synchronously driven to move to one side of the cabinet until the sealing plate blocks the heat dissipation slot opened on the side of the cabinet, thereby reducing the gas outside the cabinet from entering the cabinet through the heat dissipation slot, making the fire inside the cabinet more serious.

[0021] After the occurrence of fire, the second fuse rope inside the fixed frame arranged inside the rotating barrel will melt synchronously. At this time, the second fuse rope does not limit the ejector pin. Driven by the elastic force of the second spring, the ejector pin can pop outward, thereby puncturing the fire extinguishing airbag, causing the carbon dioxide gas stored in the fire extinguishing airbag to leak out, thereby controlling the fire inside the cabinet. At the same time, when the adjusting plate moves under the threaded connection of the threaded rod, it will synchronously drive the tooth plate to move. At this time, the tooth plate can drive the rotating barrel to rotate through the tooth ring meshing therewith. When the rotating barrel rotates, the gas leaked from the fire extinguishing airbag can be diffused over a larger range, thereby improving the efficiency of fire control. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the cabinet of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the first fusible rope of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the fire blanket of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the limit block of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the sealing plate of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the threaded rod of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the rotating barrel of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the tooth plate of the present invention; Fig.10 Schematic diagram of the three-dimensional structure of the ejector pin of the present invention In the figure: 1. cabinet; 2. protective door; 3. fire blanket; 4. rotating shaft; 5. first fuse rope; 6. guide shaft; 7. fixing plate; 8. connecting plate; 9. limiting rod; 10. first spring; 11. counterweight block; 12. limiting groove; 13. limiting block; 14. heat dissipation groove; 15. sealing plate; 16. adjusting plate; 17. threaded rod; 18. tooth plate; 19. tooth ring; 20. belt transmission structure; 21. rotating barrel; 22. exhaust groove; 23. fixing frame; 24. ejector pin; 25. fire extinguishing airbag; 26. second spring; 27. second fuse rope. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The technical scheme shown in the figure, the present invention provides the following technical scheme: an outdoor low-voltage distribution cabinet with a self-ignition protection structure, disclosing a reeling mechanism, through which a fire blanket 3 can be unfolded to reduce the possibility that the fire inside the cabinet 1 will burst out through the gap between the protective door 2 and the cabinet 1: a protective door 2 is provided on the front side of the cabinet 1, and a heat dissipation slot 14 is provided on the side of the cabinet 1, a fire blanket 3 is provided on the front side of the cabinet 1, and a rotating shaft 4 is provided on the side of the cabinet 1, and an unwinding mechanism for lowering the fire blanket 3 is provided between the side ends of the rotating shaft 4 and the inside of the cabinet 1, the unwinding mechanism includes a first fuse rope 5, the side ends of the first fuse rope 5 are fixedly connected to the two sides of the rotating shaft 4, and the inner side of the first fuse rope 5 is fixedly connected to The inner top side of the cabinet 1, and the rotating shaft 4 is nested and connected to the upper outer side of the cabinet 1, and the outer side of the rotating shaft 4 is rolled up with a fire blanket 3, the side of the cabinet 1 is provided with a limiting groove 12, and the inner part of the limiting groove 12 is nested and connected to a limiting block 13, and the outer side of the limiting block 13 is fixedly connected with a counterweight block 11, and the counterweight block 11 is fixedly connected to the bottom of the fire blanket 3, the limiting block 13 forms a sliding structure with the limiting groove 12 through the counterweight block 11, the rotating shaft 4 forms a rotating structure with the cabinet 1 through the rotating shaft 4, the width of the fire blanket 3 is greater than the width of the protective door 2, and a guide shaft 6 is also fixedly connected to the upper outer side of the cabinet 1, the outer side of the fire blanket 3 is arranged around the guide shaft 6 and downward, and the inner side of the fire blanket 3 and the outer side of the cabinet 1 are in close contact with each other.

[0025] When a natural phenomenon occurs in the cabinet 1, the temperature inside the cabinet 1 increases, and the first fuse rope 5 melts as the temperature increases. At this time, the first fuse rope 5 cannot limit the rotating shaft 4, and the fire blanket 3 wound around the outside of the rotating shaft 4 will slide downward under the influence of the gravity of the counterweight block 11 itself, thereby blocking the outside of the protective door 2 and reducing the possibility of the fire inside the cabinet 1 emitting outward through the gap between the protective door 2 and the cabinet 1. When the fire blanket 3 slides outward with the counterweight block 11, the fire blanket 3 can be guided by the guide shaft 6, and at the same time, the limit block 13 set at the lower end of the counterweight block 11 can be limited and moved along the limit groove 12 opened on the outside of the cabinet 1. At this time, the fire blanket 3 can fit tightly with the outside of the cabinet 1 with the assistance of the guide shaft 6 and the limit block 13, thereby better preventing the possibility of fire emitting outward.

[0026] Embodiment 2: Figure 1 , Figure 2 , Figure 6 and Figure 7 The technical scheme shown in the invention provides the following technical scheme: an outdoor low-voltage power distribution cabinet with a self-ignition protection structure, disclosing a sealing plate 15, through which the gas outside the cabinet 1 can be reduced from entering the cabinet 1 through the heat dissipation groove 14, so that the fire inside the cabinet 1 becomes more serious: a threaded rod 17 is rotatably connected to the outside of the cabinet 1, and a belt transmission structure 20 is arranged between the outer end of the threaded rod 17 and the outer side of the rotating shaft 4, and an adjustment plate 16 is threadedly connected to the outer side of the threaded rod 17, and the lower end of the adjustment plate 16 is fixedly connected to a fixing plate 7, and the fixing plate 7 is symmetrically arranged in two groups about the center point of the cabinet 1, and a connecting plate 8 is fixedly connected between the two groups, and the inner side of the fixing plate 7 is fixedly connected to the sealing plate 15, and the sealing plate 15 is located just outside the heat dissipation groove 14, and the side of the cabinet 1 is fixedly connected to a limiting rod 9, and the connecting plate 8 is nested and connected to the outer side of the limiting rod 9, and a first spring 10 is fixedly connected between the inner side of the connecting plate 8 and the outer side of the cabinet 1.

[0027] A heat dissipation groove 14 is provided on the outer side of the cabinet 1, and the heat inside the cabinet 1 can be discharged through the heat dissipation groove 14, thereby reducing the possibility of excessive heat accumulation inside the cabinet 1 causing short circuit of internal components of the cabinet 1. When the rotating shaft 4 rotates under the driving action of the fire blanket 3, it can synchronously drive the threaded rod 17 to rotate through the belt transmission structure 20. At this time, the threaded rod 17 can drive the fixed plate 7 to move through the adjustment plate 16. When the fixed plate 7 moves, it can synchronously drive the sealing plate 15 to move to one side of the cabinet 1 until the sealing plate 15 blocks the heat dissipation groove 14 opened on the side of the cabinet 1, thereby reducing the gas outside the cabinet 1 from entering the cabinet 1 through the heat dissipation groove 14, making the fire inside the cabinet 1 more serious.

[0028] Embodiment 3: Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 The technical scheme shown in the figure, the present invention provides the following technical scheme: an outdoor low-voltage distribution cabinet with a self-ignition protection structure, discloses a rotating mechanism, improves the rotating mechanism so that the gas leaked from the fire extinguishing airbag 25 can be diffused in a wider range, thereby improving the efficiency of fire control: the internal top side of the cabinet 1 is rotatably connected with a rotating barrel 21, and the interior of the rotating barrel 21 is provided with a fire extinguishing airbag 25, and the interior of the cabinet 1 is provided with a rotating mechanism that can make the carbon dioxide gas inside the fire extinguishing airbag 25 be discharged in a large range, the rotating mechanism includes a tooth plate 18, the tooth plate 18 is fixedly connected to the inner side of the fixed plate 7, and the tooth plate 18 is nested and connected to the side of the cabinet 1, the outer side of the rotating barrel 21 is fixedly connected with a gear ring 19, and the outer side of the rotating barrel 21 is provided with an exhaust groove 22, and A fixed frame 23 is fixedly connected to the inner side of the rotating barrel 21, and a thimble 24 is nested inside the fixed frame 23, and a second fuse rope 27 is fixedly connected between the inner end of the thimble 24 and the inside of the fixed frame 23, and a second spring 26 is also fixedly connected between the inner end of the thimble 24 and the inside of the fixed frame 23. The fire extinguishing airbag 25 is fixedly connected to the inner upper side of the rotating barrel 21, and the gear ring 19 and the tooth plate 18 are meshed with each other. The rotating barrel 21 forms a rotating structure with the cabinet 1 through the gear ring 19, and the rotating barrel 21 is provided with two groups front and rear about the center point of the tooth plate 18. The thimble 24 forms an elastic structure with the fixed frame 23 through the second spring 26, and two groups of thimbles 24 are symmetrically arranged about the fire extinguishing airbag 25, and the tip of the thimble 24 is aligned with the fire extinguishing airbag 25.

[0029] After the fire occurs, the second fuse rope 27 inside the fixed frame 23 arranged inside the rotating barrel 21 is melted synchronously. At this time, the second fuse rope 27 does not limit the ejector pin 24. Driven by the elastic force of the second spring 26, the ejector pin 24 can pop outward, thereby puncturing the fire extinguishing airbag 25, so that the carbon dioxide gas stored in the fire extinguishing airbag 25 is released, thereby controlling the fire inside the cabinet 1. At the same time, when the adjusting plate 16 moves under the threaded connection of the threaded rod 17, it will synchronously drive the tooth plate 18 to move. At this time, the tooth plate 18 can drive the rotating barrel 21 to rotate through the tooth ring 19 meshing therewith. When the rotating barrel 21 rotates, the gas leaked from the fire extinguishing airbag 25 can be diffused over a larger range, thereby improving the efficiency of fire control.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An outdoor low-voltage power distribution cabinet with a self-ignition protection structure, comprising a cabinet body (1), a protective door (2) being arranged on the front side of the cabinet body (1), and a heat dissipation slot (14) being arranged on the side of the cabinet body (1), characterized in that: A fire blanket (3) is arranged on the front side of the cabinet (1), a rotating shaft (4) is arranged on the side of the cabinet (1), and a reeling mechanism capable of lowering the fire blanket (3) is arranged between the side end of the rotating shaft (4) and the inside of the cabinet (1), a rotating barrel (21) is rotatably connected to the top side of the cabinet (1), a fire extinguishing air bag (25) is arranged inside the rotating barrel (21), and a rotating mechanism capable of discharging carbon dioxide gas inside the fire extinguishing air bag (25) over a large area is arranged inside the cabinet (1).

2. An outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 1, characterized in that: The unwinding mechanism comprises a first fusible rope (5), the side ends of the first fusible rope (5) are fixedly connected to both sides of the rotating shaft (4), and the inner side of the first fusible rope (5) is fixedly connected to the inner top side of the cabinet (1), and the rotating shaft (4) is nested and connected to the upper outer side of the cabinet (1), and a fire blanket (3) is wound on the outer side of the rotating shaft (4), a limiting groove (12) is provided on the side of the cabinet (1), and a limiting block (13) is nested and connected inside the limiting groove (12), and a counterweight block (11) is fixedly connected to the outer side of the limiting block (13), and the counterweight block (11) is fixedly connected below the fire blanket (3).

3. An outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 2, characterized in that: The limit block (13) forms a sliding structure through the counterweight block (11) and the limit groove (12); the rotating shaft (4) forms a rotating structure with the cabinet (1); and the width of the fire blanket (3) is greater than the width of the protective door (2).

4. The outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 2 is characterized in that: A guide shaft (6) is also fixedly connected to the upper portion of the outer side of the cabinet (1), and the outer side of the fire blanket (3) is arranged downward around the guide shaft (6), and the inner side of the fire blanket (3) and the outer side of the cabinet (1) are in close contact with each other.

5. The outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 1 is characterized in that: The outer side of the cabinet (1) is rotatably connected to a threaded rod (17), a belt transmission structure (20) is provided between the outer end of the threaded rod (17) and the outer side of the rotating shaft (4), the outer side of the threaded rod (17) is threadably connected to an adjustment plate (16), and the lower end of the adjustment plate (16) is fixedly connected to a fixing plate (7).

6. An outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 5, characterized in that: The fixing plates (7) are provided with two groups symmetrically about the center point of the cabinet (1), and a connecting plate (8) is fixedly connected between the two groups. A sealing plate (15) is fixedly connected to the inner side of the fixing plate (7), and the sealing plate (15) is located directly outside the heat dissipation groove (14). A limiting rod (9) is fixedly connected to the side of the cabinet (1), and the connecting plate (8) is nested and connected to the outer side of the limiting rod (9), and a first spring (10) is fixedly connected between the inner side of the connecting plate (8) and the outer side of the cabinet (1).

7. The outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 5 is characterized in that: The rotating mechanism comprises a tooth plate (18), the tooth plate (18) being fixedly connected to the inner side of the fixed plate (7), and the tooth plate (18) being nested and connected to the side of the cabinet (1), the outer side of the rotating barrel (21) being fixedly connected to a tooth ring (19), the outer side of the rotating barrel (21) being provided with an exhaust groove (22), and the inner side of the rotating barrel (21) being fixedly connected to a fixed frame (23), the interior of the fixed frame (23) being nested and connected to a ejector pin (24), and a second fuse rope (27) being fixedly connected between the inner end of the ejector pin (24) and the interior of the fixed frame (23), and a second spring (26) being fixedly connected between the inner end of the ejector pin (24) and the interior of the fixed frame (23), and the fire extinguishing airbag (25) being fixedly connected to the upper side of the interior of the rotating barrel (21).

8. An outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 7, characterized in that: The toothed ring (19) and the toothed plate (18) mesh with each other, the rotating barrel (21) and the cabinet (1) form a rotating structure through the toothed ring (19), and two groups of rotating barrels (21) are arranged in front and behind the center point of the toothed plate (18).

9. The outdoor low-voltage power distribution cabinet with a spontaneous combustion protection structure according to claim 7, characterized in that: The ejector pins (24) form an elastic structure with the fixing frame (23) via the second spring (26), and two groups of ejector pins (24) are symmetrically arranged with respect to the fire extinguishing airbag (25), and the tip of the ejector pins (24) is aligned with the fire extinguishing airbag (25).

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