A high-strength impact-resistant low-voltage distribution box and a method of using the same

Abstract

The application discloses a high-strength impact-resistant low-voltage distribution box and a use method thereof, and belongs to the field of distribution boxes. The high-strength impact-resistant low-voltage distribution box comprises a distribution box body, a connecting box is fixed on one side of the distribution box body, an opening is formed at the connecting position of the distribution box body and the connecting box, a heat dissipation opening is formed on the back surface of the distribution box body, a dust screen is fixed in the heat dissipation opening, and an adjusting assembly for sealing the heat dissipation opening is arranged in the heat dissipation opening. The heat dissipation opening is formed on the surface of the distribution box body to ventilate and dissipate heat in the distribution box body, the service life of a cable is prolonged, and the occurrence of line faults is reduced. The adjusting assembly and the opening and closing assembly arranged in the distribution box body and the connecting box are matched with each other to realize sealing of the inside of the distribution box body, and automatic fire extinguishing operation is performed on the inside of the distribution box body, so that the loss caused by safety accidents is reduced, and the physical and mental health of workers is protected.

Description

Technical Field

[0001] This invention relates to the field of junction box technology, and in particular to a high-strength, impact-resistant low-voltage junction box and its usage method. Background Technology

[0002] With the rapid development of the national power industry, when independent loads with small capacity are distributed in a concentrated manner, junction boxes can be used to connect multiple branches of cables. Because junction boxes cannot be operated directly on each circuit, they are only used as cable branches. The main function of cable junction boxes is to split or transfer cables. Cable branching often results in wasted cable usage when multiple small-area cables run along a long line. Therefore, a main main cable is typically used to connect to the load, and then a cable distribution box is used to split the main cable into several smaller cables near the load. Low-voltage distribution boxes are widely used in daily life. These boxes are typically made of aluminum alloy or stainless steel, offering good impact resistance and strength, and providing excellent protection for the internal structure. However, during use, the boxes are often sealed as a single unit, hindering heat dissipation and ventilation, which can easily damage the internal cables, creating safety hazards. Furthermore, fires within the box are difficult to extinguish. In some low-voltage distribution boxes, cables become tangled inside, making maintenance and inspection very troublesome. Therefore, we propose a high-strength, impact-resistant low-voltage distribution box and its usage method. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of poor ventilation and heat dissipation in existing low-voltage distribution boxes, difficulty in timely fire extinguishing in case of fire, and difficulty in classifying and limiting the connected lines, which affects the work efficiency of staff. The invention proposes a high-strength impact-resistant low-voltage distribution box and its usage method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-strength, impact-resistant low-voltage junction box includes a junction box body, a connecting box fixed to one side of the junction box body, an opening at the connection between the junction box body and the connecting box, a heat dissipation vent on the back of the junction box body, a dustproof mesh fixed inside the heat dissipation vent, an adjustment component for sealing the heat dissipation vent inside the heat dissipation vent, a fire extinguishing canister installed on the bottom inner wall of the connecting box, a delivery pipe fixed to the top of the fire extinguishing canister, a nozzle installed at the end of the delivery pipe extending through the junction box body and into the interior of the junction box body, a valve assembly installed on the surface of the delivery pipe, an opening and closing component cooperating with the adjustment component inside the connecting box, and a mounting plate fixed to the bottom inner wall of the junction box body, with a classification component for cable sorting on the mounting plate.

[0006] Preferably, the adjusting assembly includes a motor fixed to the inner wall of the bottom of the connecting box, a threaded rod fixed to the output end of the motor, the end of the threaded rod being rotatably connected to the inner wall of the connecting box via a bearing, a threaded block being threadedly connected to the surface of the threaded rod, a first sliding groove being formed on one side of the inner wall of the connecting box, a first sliding block sliding inside the first sliding groove, the end of the first sliding block being fixedly connected to the threaded block, a connecting rod being fixed to one side surface of the threaded block, and the surface of the connecting rod being rotatably connected to a pulley via a bearing.

[0007] Preferably, a helical gear is fixed to the surface of the threaded rod, a meshing gear is engaged on the surface of the helical gear, a driving wheel is fixed to the axis of the meshing gear, the end of the driving wheel is rotatably connected to one side outer wall of the junction box body through a bearing, a rotating shaft is fixed to the surface of the driving wheel, a driven wheel is driven by a belt on the surface of the rotating shaft, a lead screw is fixed to the axis of the driven wheel, a support rod is rotatably connected to the surface of the lead screw through a bearing, one end of the support rod is fixedly connected to the top inner wall of the connecting box, one end of the lead screw extends into the interior of the junction box body and is threadedly connected to an internal threaded sleeve, a sealing plate is fixed to the end of the internal threaded sleeve, the sealing plate is slidably connected to the interior of the limiting groove, the limiting groove is opened on the surface of the limiting member, and one side surface of the limiting member is fixedly connected to the inner wall of the junction box body.

[0008] Preferably, the opening and closing assembly includes a second slide groove formed on the top of the connecting box, a second slider sliding inside the second slide groove, a rack fixed to the end of the second slider, a shaped block fixed to one end of the rack, a telescopic rod fixed to the other end of the rack, the end of the telescopic rod being fixedly connected to the connecting box, a compression spring fixed between the connecting box and the rack, the compression spring being sleeved on the surface of the telescopic rod, and the bottom surface of the rack engaging with the surface of the valve assembly.

[0009] Preferably, the sorting component includes a third slide groove formed on the surface of the mounting plate, a plurality of third sliders sliding inside the third slide groove, a base plate fixed to the ends of the plurality of third sliders, a concave block fixed to the top of the base plate, a pull rod sliding inside the concave block, a pull block fixed to one end of the pull rod, and an arc-shaped block fixed to the other end of the pull rod.

[0010] Preferably, a compression spring is fixed between the arc-shaped block and the concave block, the compression spring is sleeved on the surface of the pull rod, and a label plate is fixed on one side surface of the concave block.

[0011] Preferably, a first sealed door is hinged to one side surface of the junction box body, a storage box is fixed to one side surface of the first sealed door, a partition is fixed to the inner wall of the storage box, a desiccant is placed inside the storage box, and a second sealed door is hinged to one side surface of the connection box.

[0012] Preferably, an inlet pipe is fixed to the top of the junction box body, and an outlet pipe is fixed to the bottom of the junction box body, with a sealing sleeve fitted inside the outlet pipe.

[0013] Preferably, a dustproof mesh is fixedly installed inside the heat dissipation vent, and heat dissipation fins are fixed on one side surface of the junction box body. Both the junction box body and the connecting box are made of die-cast aluminum alloy or welded stainless steel.

[0014] A method for using a high-strength, impact-resistant low-voltage junction box includes the following steps:

[0015] S1: When in use, after the junction box body is installed and fixed at the wiring position, the staff can manually open the junction box body, pass the cables to be split through the inside of the junction box body, and then use the sorting components installed on the surface of the mounting plate to sort and place the cables to be separated, and limit them, so as to facilitate the inspection and maintenance operations of the maintenance personnel later. The sorted cables extend out from the inside of the junction box body and connect to other external lines, avoiding multiple cables from getting tangled inside the junction box body and making it easy to find.

[0016] S2: When the cables and electrical components inside the junction box need to operate for a long time and generate heat that is difficult to dissipate, the adjustment component inside the junction box is activated, which opens the heat dissipation vent on one side of the junction box body, thereby achieving the effect of ventilation and heat dissipation and preventing the line from malfunctioning due to high temperature.

[0017] S3: When a fire occurs inside the junction box, the regulating component activates the sealing plate and the limiting groove to seal the heat dissipation vents, preventing the fire from spreading. During operation, the regulating component works in conjunction with the opening and closing component to create a linkage effect, thereby opening the valve assembly and spraying out the dry extinguishing powder stored inside the fire extinguishing tank. This powder is then transported through the delivery pipe to the inside of the junction box, where multiple nozzles spray and cover the fire area. When the fire is extinguished, the motor reverses, separating the regulating component from the opening and closing component, which then closes the valve assembly, saving resources.

[0018] Compared with the prior art, the present invention provides a high-strength, impact-resistant low-voltage junction box and its usage method, which has the following beneficial effects:

[0019] 1. This high-strength, impact-resistant low-voltage junction box has an adjustable component inside the box that allows for easy opening of the heat dissipation vents, thereby venting heat generated inside the junction box, improving ventilation and heat dissipation, and extending the service life of the cables inside the junction box.

[0020] 2. This high-strength, impact-resistant low-voltage junction box, through the cooperation of the opening and closing components and the adjustment components set in the junction box, drives the opening and closing components to move, opening the valve components on the surface of the delivery pipe, and using the dry powder stored inside the fire extinguisher to spray and extinguish the fire in the fire area inside the junction box, eliminating the trouble of manual fire extinguishing operations, protecting the personal safety of the staff, and playing a very good protective role.

[0021] 3. This high-strength, impact-resistant low-voltage junction box features a classification component on the mounting plate surface. This component facilitates the classification, labeling, and positioning of cables connected inside the junction box, preventing multiple cables from becoming tangled together. This makes it easier for staff to locate and maintain the cables later, effectively improving their work efficiency. The box is also easy to assemble and disassemble.

[0022] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention extends the service life of cables and reduces the occurrence of line faults by opening heat dissipation vents on the surface of the junction box body to ventilate and dissipate heat inside the junction box body. At the same time, it automatically extinguishes fires inside the junction box body by cooperating with the adjustment components and opening and closing components set inside the junction box body and the connection box. It is convenient to use and protects the physical and mental health of workers from losses caused by safety accidents. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a high-strength, impact-resistant low-voltage junction box proposed in this invention;

[0024] Figure 2 This is a top view of the low-voltage junction box proposed in this invention.

[0025] Figure 3 This is a schematic diagram of the side cross-sectional structure of the connecting box proposed in this invention;

[0026] Figure 4 This is a schematic diagram of the overall side cross-section of the low-voltage distribution box and connection box proposed in this invention;

[0027] Figure 5 This is another side cross-sectional view of the connecting box proposed in this invention;

[0028] Figure 6 The present invention proposes Figure 5 Enlarged view of region A in the middle;

[0029] Figure 7 This is a cross-sectional view of the low-voltage distribution box and connection box proposed in this invention from another side.

[0030] Figure 8 This is a partial structural schematic diagram of the mounting plate proposed in this invention;

[0031] Figure 9 The present invention proposes Figure 8 Enlarged view of region B in the middle.

[0032] In the diagram: 1. Distribution box body; 2. Connecting box; 3. Opening; 4. Heat dissipation vent; 5. Dustproof net; 6. Adjustment assembly; 601. Motor; 602. Threaded rod; 603. Threaded block; 604. First slide groove; 605. First slider; 606. Connecting rod; 607. Pulley; 608. Helical gear; 609. Meshing gear; 610. Driving wheel; 611. Rotating shaft; 612. Driven wheel; 613. Lead screw; 614. Support rod; 615. Internal threaded sleeve; 616. Sealing plate; 617. Limiting element; 618. Limiting groove; 7. Fire extinguisher; 8. Delivery pipe; 9. Nozzle; 10. Valve assembly; 11. Opening / closing valve. Components; 1101, Second slide rail; 1102, Second slider; 1103, Rack; 1104, Irregular block; 1105, Telescopic rod; 1106, Compression spring; 12, Mounting plate; 13, Classification component; 1301, Third slide rail; 1302, Third slider; 1303, Base plate; 1304, Concave block; 1305, Pull rod; 1306, Pull block; 1307, Arc block; 1308, Compression spring; 1309, Label plate; 14, First sealed box door; 15, Storage box; 16, Divider plate; 17, Desiccant; 18, Second sealed box door; 19, Inlet pipe; 20, Outlet pipe; 21, Sealing sleeve. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Example 1:

[0036] Reference Figure 1-9A high-strength, impact-resistant low-voltage junction box includes a junction box body 1, a connecting box 2 fixed to one side of the junction box body 1, an opening 3 at the connection between the junction box body 1 and the connecting box 2, a heat dissipation vent 4 on the back of the junction box body 1, a dustproof mesh 5 fixed inside the heat dissipation vent 4, an adjustment component 6 for sealing the heat dissipation vent 4 inside the heat dissipation vent 4, a fire extinguishing canister 7 installed on the bottom inner wall of the connecting box 2, a delivery pipe 8 fixed to the top of the fire extinguishing canister 7, a nozzle 9 installed at the end of the delivery pipe 8 penetrating the junction box body 1 and extending into the interior of the junction box body 1, a valve assembly 10 installed on the surface of the delivery pipe 8, an opening and closing component 11 cooperating with the adjustment component 6 installed inside the connecting box 2, and a mounting plate 12 fixed to the bottom inner wall of the junction box body 1, a classification component 13 for classifying cables installed on the mounting plate 12.

[0037] In this invention, during use, the operator manually opens the first sealed door 14 and inserts the cables to be separated into the junction box body 1 through the inlet pipe 19. Then, the sorting components 13 mounted on the mounting plate 12 are used to sort and position the cables, facilitating inspection and maintenance by maintenance personnel. The sorted cables pass through multiple outlet pipes 20 and extend out of the junction box body 1 to connect with other external lines, preventing multiple cables from tangling inside the junction box body 1 and making them easier to locate. A heat dissipation vent 4 is provided on one side of the junction box body 1 to facilitate ventilation and heat dissipation, extending the lifespan of the cables. To extend the service life and reduce the probability of line faults, when a fire occurs inside the junction box 1, the adjustment component 6 installed inside the junction box 1 seals the heat dissipation vent 4. Then, in conjunction with the opening and closing component 11 installed on the connection box 2, a linkage effect is created, thereby opening the valve component 10. The dry powder for fire extinguishing stored inside the fire extinguishing tank 7 is sprayed out and transported to the interior of the junction box 1 through the delivery pipe 8. Then, multiple nozzles 9 spray and cover the fire area to achieve the fire extinguishing effect. The valve component 10 consists of a valve and a transmission gear. The transmission gear is fixed on the outer surface of the valve and cooperates with the opening and closing component 11 to realize the opening and closing of the valve component 10.

[0038] Example 2:

[0039] Reference Figure 1-9A high-strength, impact-resistant low-voltage junction box includes a junction box body 1, a connecting box 2 fixed to one side of the junction box body 1, an opening 3 at the connection between the junction box body 1 and the connecting box 2, a heat dissipation vent 4 on the back of the junction box body 1, a dustproof mesh 5 fixed inside the heat dissipation vent 4, an adjustment component 6 for sealing the heat dissipation vent 4 inside the heat dissipation vent 4, a fire extinguishing canister 7 installed on the bottom inner wall of the connecting box 2, a delivery pipe 8 fixed to the top of the fire extinguishing canister 7, a nozzle 9 installed at the end of the delivery pipe 8 penetrating the junction box body 1 and extending into the interior of the junction box body 1, a valve assembly 10 installed on the surface of the delivery pipe 8, an opening and closing component 11 cooperating with the adjustment component 6 installed inside the connecting box 2, and a mounting plate 12 fixed to the bottom inner wall of the junction box body 1, a classification component 13 for classifying cables installed on the mounting plate 12.

[0040] The adjusting assembly 6 includes a motor 601 fixed to the inner wall of the bottom of the connecting box 2. A threaded rod 602 is fixed to the output end of the motor 601. The end of the threaded rod 602 is rotatably connected to the inner wall of the connecting box 2 via a bearing. A threaded block 603 is threadedly connected to the surface of the threaded rod 602. A first sliding groove 604 is provided on one side of the inner wall of the connecting box 2. A first slider 605 slides inside the first sliding groove 604. The end of the first slider 605 is fixedly connected to the threaded block 603. A connecting rod 606 is fixed to one side of the threaded block 603. The surface of the connecting rod 606 is rotatably connected to a pulley 607 via a bearing. A helical gear 608 is fixed to the surface of the threaded rod 602. A meshing gear 609 meshes with the surface of the helical gear 608. A drive wheel 610 is fixed at the axis of the meshing gear 609. The end of the drive wheel 610 is rotatably connected to the outer wall of one side of the junction box body 1 via a bearing. A rotating shaft 611 is fixed on the surface of the drive wheel 610. A driven wheel 612 is driven by a belt on the surface of the rotating shaft 611. A lead screw 613 is fixed at the axis of the driven wheel 612. A support rod 614 is rotatably connected to the surface of the lead screw 613 via a bearing. One end of the support rod 614 is fixedly connected to the inner wall of the top of the connecting box 2. One end of the lead screw 613 extends into the interior of the junction box body 1 and is threadedly connected to an internal threaded sleeve 615. A sealing plate 616 is fixed to the end of the internal threaded sleeve 615. The sealing plate 616 is slidably connected to the interior of the limiting groove 618. The limiting groove 618 is opened on the surface of the limiting member 617. One side of the limiting member 617 is fixedly connected to the inner wall of the junction box body 1.

[0041] In this invention, the starter motor 601 drives the threaded rod 602 to rotate, which in turn drives the helical gear 608 to rotate. The helical gear 608 then drives the meshing gear 609 to rotate, changing the transmission direction. The meshing gear 609 then drives the driving wheel 610 to rotate, which in turn drives the rotating shaft 611 to rotate. The rotating shaft 611 then drives the driven wheel 612 to rotate synchronously, which in turn drives the lead screw 613 to rotate. The lead screw 613 then drives the internal threaded sleeve 615 to move, allowing the sealing plate 616 to slide inside the limiting groove 618, thereby opening the four heat dissipation vents for easier installation. To improve ventilation and heat dissipation and prevent safety hazards caused by high temperatures inside the junction box 1, when the starting motor 601 reverses, the sealing plate 616 can slide inside the limiting groove 618 to seal the heat dissipation vent 4, preventing external air from entering and forming a sealed space inside the junction box 1 to prevent the spread of fire and facilitate better fire extinguishing operations. As the threaded rod 602 rotates, it drives the threaded block 603 to move up and down. The threaded block 603 drives the connecting rod 606 on one side to move up and down. The pulley 607 on the connecting rod 606 cooperates with the opening and closing assembly 11 to open the valve assembly 10, thereby creating a linkage effect.

[0042] Example 3:

[0043] Reference Figure 1-9 A high-strength, impact-resistant low-voltage junction box includes a junction box body 1, a connecting box 2 fixed to one side of the junction box body 1, an opening 3 at the connection between the junction box body 1 and the connecting box 2, a heat dissipation vent 4 on the back of the junction box body 1, a dustproof mesh 5 fixed inside the heat dissipation vent 4, an adjustment component 6 for sealing the heat dissipation vent 4 inside the heat dissipation vent 4, a fire extinguishing canister 7 installed on the bottom inner wall of the connecting box 2, a delivery pipe 8 fixed to the top of the fire extinguishing canister 7, a nozzle 9 installed at the end of the delivery pipe 8 penetrating the junction box body 1 and extending into the interior of the junction box body 1, a valve assembly 10 installed on the surface of the delivery pipe 8, an opening and closing component 11 cooperating with the adjustment component 6 installed inside the connecting box 2, and a mounting plate 12 fixed to the bottom inner wall of the junction box body 1, a classification component 13 for classifying cables installed on the mounting plate 12.

[0044] The opening and closing assembly 11 includes a second slide groove 1101 formed on the top of the connecting box 2. A second slider 1102 slides inside the second slide groove 1101. A rack 1103 is fixed to the end of the second slider 1102. A shaped block 1104 is fixed to one end of the rack 1103. A telescopic rod 1105 is fixed to the other end of the rack 1103. The end of the telescopic rod 1105 is fixedly connected to the connecting box 2. A compression spring 1106 is fixed between the connecting box 2 and the rack 1103. The compression spring 1106 is sleeved on the surface of the telescopic rod 1105. The bottom surface of the rack 1103 meshes with the surface of the valve assembly 10.

[0045] In this invention, when the pulley 607 moves upward, it comes into contact with the irregular block 1104, causing the pulley 607 to slide on one side of the irregular block 1104. This causes the irregular block 1104 to be squeezed and displaced. The irregular block 1104 moves to the left, which drives the rack 1103 to move. The movement of the rack 1103 drives the valve assembly 10 to rotate, so that the valve assembly 10 is in the open state. Thus, the fire extinguisher 7 is used to extinguish the fire inside the junction box body 1. This method is convenient to use, has a good fire extinguishing effect, eliminates the need for manual fire extinguishing operations, and reduces the losses caused by safety accidents.

[0046] Example 4:

[0047] Reference Figure 1-9 A high-strength, impact-resistant low-voltage junction box includes a junction box body 1, a connecting box 2 fixed to one side of the junction box body 1, an opening 3 at the connection between the junction box body 1 and the connecting box 2, a heat dissipation vent 4 on the back of the junction box body 1, a dustproof mesh 5 fixed inside the heat dissipation vent 4, an adjustment component 6 for sealing the heat dissipation vent 4 inside the heat dissipation vent 4, a fire extinguishing canister 7 installed on the bottom inner wall of the connecting box 2, a delivery pipe 8 fixed to the top of the fire extinguishing canister 7, a nozzle 9 installed at the end of the delivery pipe 8 penetrating the junction box body 1 and extending into the interior of the junction box body 1, a valve assembly 10 installed on the surface of the delivery pipe 8, an opening and closing component 11 cooperating with the adjustment component 6 installed inside the connecting box 2, and a mounting plate 12 fixed to the bottom inner wall of the junction box body 1, a classification component 13 for classifying cables installed on the mounting plate 12.

[0048] Example 5:

[0049] Reference Figure 1-9A high-strength, impact-resistant low-voltage junction box includes a junction box body 1, a connecting box 2 fixed to one side of the junction box body 1, an opening 3 at the connection between the junction box body 1 and the connecting box 2, a heat dissipation vent 4 on the back of the junction box body 1, a dustproof mesh 5 fixed inside the heat dissipation vent 4, an adjustment component 6 for sealing the heat dissipation vent 4 inside the heat dissipation vent 4, a fire extinguishing canister 7 installed on the bottom inner wall of the connecting box 2, a delivery pipe 8 fixed to the top of the fire extinguishing canister 7, a nozzle 9 installed at the end of the delivery pipe 8 penetrating the junction box body 1 and extending into the interior of the junction box body 1, a valve assembly 10 installed on the surface of the delivery pipe 8, an opening and closing component 11 cooperating with the adjustment component 6 installed inside the connecting box 2, and a mounting plate 12 fixed to the bottom inner wall of the junction box body 1, a classification component 13 for classifying cables installed on the mounting plate 12.

[0050] The sorting component 13 includes a third slide groove 1301 formed on the surface of the mounting plate 12. Multiple third sliders 1302 slide inside the third slide groove 1301. A base plate 1303 is fixed to the ends of the multiple third sliders 1302. A concave block 1304 is fixed to the top of the base plate 1303. A pull rod 1305 slides inside the concave block 1304. A pull block 1306 is fixed to one end of the pull rod 1305. An arc-shaped block 1307 is fixed to the other end of the pull rod 1305. A compression spring 1308 is fixed between the arc-shaped block 1307 and the concave block 1304. The compression spring 1308 is sleeved on the surface of the pull rod 1305. A label plate 1309 is fixed to one side surface of the concave block 1304.

[0051] In this invention, when the cables entering the junction box body 1 are sorted, the branched cables pass through multiple concave blocks 1304 in the sorting component 13. The pull block 1306 is manually pulled to move the pull rod 1305, which in turn moves the arc block 1307. The elastic rebound of the compression spring 1308 compresses the arc block 1307, making it contact and adhere to the passing cables, thus pressing and limiting them. This method is suitable for sorting and limiting cables of different sizes. The third slider 1302 slides inside the third groove 1301, which facilitates the adjustment of the installation position of each cable branch and makes it easy to use. The label plate 1309 is used to affix the model and purpose of the branched cables, which facilitates subsequent maintenance and inspection by the staff and improves work efficiency.

[0052] Example 6:

[0053] Reference Figure 1-9A high-strength, impact-resistant low-voltage junction box includes a junction box body 1, a connecting box 2 fixed to one side of the junction box body 1, an opening 3 at the connection between the junction box body 1 and the connecting box 2, a heat dissipation vent 4 on the back of the junction box body 1, a dustproof mesh 5 fixed inside the heat dissipation vent 4, an adjustment component 6 for sealing the heat dissipation vent 4 inside the heat dissipation vent 4, a fire extinguishing canister 7 installed on the bottom inner wall of the connecting box 2, a delivery pipe 8 fixed to the top of the fire extinguishing canister 7, a nozzle 9 installed at the end of the delivery pipe 8 penetrating the junction box body 1 and extending into the interior of the junction box body 1, a valve assembly 10 installed on the surface of the delivery pipe 8, an opening and closing component 11 cooperating with the adjustment component 6 installed inside the connecting box 2, and a mounting plate 12 fixed to the bottom inner wall of the junction box body 1, a classification component 13 for classifying cables installed on the mounting plate 12.

[0054] The junction box body 1 has a first sealed door 14 that rotates via a hinge on one side surface. A storage box 15 is fixed to one side surface of the first sealed door 14. A partition plate 16 is fixed to the inner wall of the storage box 15. A desiccant 17 is placed inside the storage box 15. The connection box 2 has a second sealed door 18 that rotates via a hinge on one side surface. An inlet pipe 19 is fixed to the top of the junction box body 1. An outlet pipe 20 is fixed to the bottom of the junction box body 1. A sealing sleeve 21 is fitted inside the outlet pipe 20. A dustproof mesh 5 is fixedly installed inside the heat dissipation vent 4. Heat dissipation fins are fixed to one side surface of the junction box body 1. Both the junction box body 1 and the connection box 2 are made of die-cast aluminum alloy or welded stainless steel.

[0055] In this invention, the first sealed door 14 allows for easy opening of the junction box body 1, enabling the installation of cables inside. The partition 16 inside the storage box 15 divides the internal space of the storage box 15 into multiple areas, facilitating the placement of other items. The desiccant 17 helps to absorb moisture and prevent dampness inside the junction box body 1. The inlet pipe 19 allows for easy connection to other transmission pipes, penetrating into the interior of the junction box body 1 for wiring and installation. The cable is then led out through the outlet pipe 20. The sealing sleeve 21 protects the wiring inside the outlet pipe 20, preventing damage from bending.

[0056] A method for using a high-strength, impact-resistant low-voltage junction box includes the following steps:

[0057] S1: When in use, after the junction box body 1 is installed and fixed at the wiring position, the staff can manually open the junction box body 1 and insert the cable to be split into the interior of the junction box body 1. Then, the sorting component 13 installed on the surface of the mounting plate 12 is used to sort and place the cables to be separated and limit their positions, so as to facilitate the inspection and maintenance operations of the maintenance personnel later. The sorted cables extend out from the interior of the junction box body 1 and connect to other external lines, avoiding the tangling of multiple cables inside the junction box body 1 and making it easy to find them.

[0058] S2: When the cables and electrical components inside the junction box 1 generate heat during long-term operation and it is difficult to dissipate the heat, the adjustment component 6 inside the junction box 2 is activated, which opens the heat dissipation vent 4 on one side of the junction box 1, thereby achieving the effect of ventilation and heat dissipation and preventing the line from malfunctioning due to high temperature.

[0059] S3: When a fire occurs inside the junction box 1, the regulating component 6 is activated to drive the sealing plate 616 and the limiting groove 618 to cooperate and seal the heat dissipation vent 4 to prevent the fire from spreading. When the regulating component 6 is in operation, it cooperates with the opening and closing component 11 to drive the opening and closing component 11 to produce a linkage effect, thereby opening the valve component 10 and spraying out the dry extinguishing powder stored in the fire extinguishing tank 7. The powder is then transported to the inside of the junction box 1 through the delivery pipe 8, and then multiple nozzles 9 spray and cover the fire area. When the fire is extinguished, the motor 601 is reversed. At this time, the regulating component 6 and the opening and closing component 11 are separated, and the opening and closing component 11 is used to close the valve component 10, saving resources.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-strength, impact-resistant low-voltage junction box, comprising a junction box body (1), characterized in that, A connecting box (2) is fixed to one side of the junction box body (1). An opening (3) is provided at the connection between the junction box body (1) and the connecting box (2). A heat dissipation vent (4) is provided on the back of the junction box body (1). A dustproof net (5) is fixed inside the heat dissipation vent (4). An adjustment component (6) for sealing the heat dissipation vent (4) is provided inside the heat dissipation vent (4). A fire extinguishing canister (7) is installed on the bottom inner wall of the connecting box (2). The top of the fire extinguishing canister (7) is fixed. There is a conveying pipe (8), the end of which passes through the junction box body (1) and extends into the interior of the junction box body (1) and is provided with a nozzle (9). A valve assembly (10) is provided on the surface of the conveying pipe (8). An opening and closing assembly (11) that cooperates with the adjustment assembly (6) is provided inside the connecting box (2). An installation plate (12) is fixed on the bottom inner wall of the junction box body (1). A classification assembly (13) for classifying cables is provided on the installation plate (12). The adjustment assembly (6) includes a motor (601) fixed to the inner wall of the bottom of the connecting box (2). The output end of the motor (601) is fixed with a threaded rod (602). The end of the threaded rod (602) is rotatably connected to the inner wall of the connecting box (2) through a bearing. A threaded block (603) is threadedly connected to the surface of the threaded rod (602). A first sliding groove (604) is provided on one side of the inner wall of the connecting box (2). A first slider (605) slides inside the first sliding groove (604). The end of the first slider (605) is fixedly connected to the threaded block (603). A connecting rod (606) is fixed to one side of the threaded block (603). The surface of the connecting rod (606) is rotatably connected to a pulley (607) through a bearing. A helical gear (608) is fixed to the surface of the threaded rod (602), and a meshing gear (609) meshes with the surface of the helical gear (608). A drive wheel (610) is fixed at the axis of the meshing gear (609). The end of the drive wheel (610) is rotatably connected to one side of the outer wall of the junction box body (1) via a bearing. A rotating shaft (611) is fixed to the surface of the drive wheel (610), and a driven wheel (612) is driven by a belt on the surface of the rotating shaft (611). A lead screw (613) is fixed at the axis of the driven wheel (612). The surface of the junction box (2) is rotated by a support rod (614) via a bearing. One end of the support rod (614) is fixedly connected to the top inner wall of the junction box (2). One end of the lead screw (613) extends into the interior of the junction box body (1) and is threadedly connected to an internal thread sleeve (615). The end of the internal thread sleeve (615) is fixedly connected to a sealing plate (616). The sealing plate (616) is slidably connected to the interior of a limiting groove (618). The limiting groove (618) is opened on the surface of a limiting member (617). One side surface of the limiting member (617) is fixedly connected to the inner wall of the junction box body (1). The opening and closing assembly (11) includes a second slide groove (1101) opened on the top of the connecting box (2). A second slider (1102) slides inside the second slide groove (1101). A rack (1103) is fixed to the end of the second slider (1102). A shaped block (1104) is fixed to one end of the rack (1103). A telescopic rod (1105) is fixed to the other end of the rack (1103). The end of the telescopic rod (1105) is fixedly connected to the connecting box (2). A compression spring (1106) is fixed between the connecting box (2) and the rack (1103). The compression spring (1106) is sleeved on the surface of the telescopic rod (1105). The bottom surface of the rack (1103) meshes with the surface of the valve assembly (10).

2. The high-strength, impact-resistant low-voltage junction box according to claim 1, characterized in that, The sorting component (13) includes a third slide groove (1301) formed on the surface of the mounting plate (12). A plurality of third sliders (1302) slide inside the third slide groove (1301). A base plate (1303) is fixed to the ends of the plurality of third sliders (1302). A concave block (1304) is fixed to the top of the base plate (1303). A pull rod (1305) slides inside the concave block (1304). A pull block (1306) is fixed to one end of the pull rod (1305), and an arc block (1307) is fixed to the other end of the pull rod (1305).

3. A high-strength, impact-resistant low-voltage junction box according to claim 2, characterized in that, A compression spring (1308) is fixed between the arc-shaped block (1307) and the concave block (1304). The compression spring (1308) is sleeved on the surface of the pull rod (1305). A label plate (1309) is fixed on one side surface of the concave block (1304).

4. A high-strength, impact-resistant low-voltage junction box according to claim 1, characterized in that, The main body (1) of the distribution box has a first sealed door (14) that is hinged to rotate on one side surface. A storage box (15) is fixed to one side surface of the first sealed door (14). A partition plate (16) is fixed to the inner wall of the storage box (15). A desiccant (17) is placed inside the storage box (15). The connecting box (2) has a second sealed door (18) that is hinged to rotate on one side surface.

5. A high-strength, impact-resistant low-voltage junction box according to claim 1, characterized in that, The top of the junction box body (1) is fixed with an inlet pipe (19), and the bottom of the junction box body (1) is fixed with an outlet pipe (20). The outlet pipe (20) is fitted with a sealing sleeve (21).

6. A high-strength, impact-resistant low-voltage junction box according to claim 1, characterized in that, A dustproof mesh (5) is fixedly installed inside the heat dissipation port (4), and heat dissipation fins are fixed on one side surface of the junction box body (1). Both the junction box body (1) and the connecting box (2) are made of die-cast aluminum alloy or welded stainless steel.

7. The method of using a high-strength, impact-resistant low-voltage junction box according to claim 1, characterized in that, Includes the following steps: S1: When in use, after the junction box body (1) is installed and fixed at the wiring position, the staff can manually open the junction box body (1) and insert the cable to be split into the interior of the junction box body (1). Then, the sorting components (13) installed on the surface of the mounting plate (12) are used to sort and place the cables to be separated and limit them, so as to facilitate the inspection and maintenance operations of the maintenance personnel later. The sorted cables extend out from the interior of the junction box body (1) and connect with other external lines, avoiding multiple cables from getting tangled in the junction box body (1) and making it easy to find. S2: When the heat generated by the cables and electrical components inside the junction box (1) during long-term operation is difficult to dissipate, the heat dissipation vent (4) on one side of the junction box (1) is opened by activating the adjustment component (6) inside the junction box (2), thereby achieving the effect of ventilation and heat dissipation and preventing the line from malfunctioning due to high temperature. S3: When a fire occurs inside the junction box body (1), the regulating component (6) is activated to drive the sealing plate (616) and the limiting groove (618) to cooperate and seal the heat dissipation port (4) to prevent the fire from spreading. When the regulating component (6) is running, it cooperates with the opening and closing component (11) to drive the opening and closing component (11) to produce a linkage effect, thereby opening the valve component (10) and spraying out the dry powder for fire extinguishing stored in the fire extinguishing tank (7). The powder is then transported to the inside of the junction box body (1) through the delivery pipe (8), and then multiple nozzles (9) spray and cover the fire area. When the fire is extinguished, the motor (601) is reversed. At this time, the regulating component (6) and the opening and closing component (11) are separated, and the opening and closing component (11) is used to close the valve component (10) to save resources.

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