Pneumatic active self-extinguishing high safety protection distribution box

Abstract

The application relates to the technical field of distribution boxes, in particular to a pneumatic active self-extinguishing high-safety protection distribution box, which comprises a distribution box body, an extinguishing mechanism and a mounting mechanism; the distribution box body comprises a box body; the extinguishing mechanism comprises a mounting seat arranged at the top of the box body and an aerosol fire extinguisher arranged on the surface of the mounting seat; the mounting mechanism comprises a strip-shaped frame fixed to the inner walls on the two sides of the top of the box body and two symmetrical sliding blocks slidingly arranged on the inner walls of the strip-shaped frame; the surface of the sliding block is rotationally provided with a connecting rod, and the other end of the connecting rod is rotationally connected with the surface of the mounting seat; through the arrangement of the extinguishing mechanism and the mounting mechanism, the distribution box can realize automatic extinguishing during actual use; after the aerosol fire extinguisher is installed, the stability of the aerosol fire extinguisher after installation in the distribution box is effectively improved, so that the stability of the aerosol fire extinguisher after receiving the reaction force during extinguishing is ensured.

Description

Technical Field

[0001] This application relates to the field of distribution box technology, and in particular to a pneumatic active self-extinguishing high-safety protection distribution box. Background Technology

[0002] Distribution boxes are characterized by their small size, easy installation, special technical performance, fixed location, unique configuration functions, lack of site restrictions, wide application, stable and reliable operation, high space utilization, small footprint, and environmental benefits. They are the control center that directs the rational distribution of electrical energy among various components in the power supply line, the control link that reliably receives power from the upstream source and correctly feeds out load power, and are also key to obtaining user satisfaction with power supply quality.

[0003] Currently, there are still many obvious shortcomings in the fire protection solutions for distribution boxes in the industry. Traditional protection methods mostly rely on manual inspections combined with external portable fire extinguishers. This mode is entirely dependent on the response speed of personnel. In unattended scenarios, distribution boxes often cannot be dealt with in time in the early stages of a fire, and the best opportunity to extinguish the fire is easily missed.

[0004] At the same time, the existing fire extinguishing device installation structure in the distribution box also has obvious defects. At present, most aerosol fire extinguishing devices on the market are installed in the cabinet by simple pasting or single-point bolt fixing. Not only is the installation operation cumbersome, but the operation also requires personnel to enter the narrow cabinet space for maintenance and replacement, which is difficult. Moreover, the device is not stable enough. Under the influence of the reaction force generated by the fire extinguishing spray, the device is prone to displacement and spray direction deviation. This causes the aerosol to not be evenly diffused to all corners of the box, resulting in fire extinguishing dead zones and greatly reducing the reliability of fire extinguishing. In addition, some simple fixing structures are also at risk of loosening and falling off after long-term operation, which poses a hidden danger to the long-term fire safety of the distribution box.

[0005] In addition, existing installation methods are all passive fixing methods, which rely on one-time operations such as bolt tightening or adhesive curing. They cannot actively generate continuous locking force during installation, nor can they automatically complete multi-directional synchronous locking by utilizing the installation stroke, resulting in insufficient long-term operational reliability.

[0006] Therefore, this application provides a pneumatic active self-extinguishing high-safety protection distribution box. Summary of the Invention

[0007] The purpose of this application is to solve at least one technical problem raised in the background art.

[0008] This application provides a pneumatic active self-extinguishing high-safety protection distribution box, including the distribution box body, the fire extinguishing mechanism and the installation mechanism;

[0009] The installation mechanism is configured to actively trigger pneumatic transmission by mechanical contact during the installation stroke when the aerosol fire extinguisher is sent into the top of the housing. This pneumatically drives the locking components to automatically lock the aerosol fire extinguisher in multiple directions, thereby achieving pneumatic active high-safety protection installation.

[0010] The distribution box body includes a box body and a sealed door panel hinged to the front of the box body;

[0011] The fire extinguishing mechanism includes a mounting base located at the top of the housing and an aerosol fire extinguisher located on the surface of the mounting base.

[0012] The installation mechanism includes a strip frame fixed to the inner walls of both sides of the top of the box, and two symmetrical sliders slidably disposed on the inner wall of the strip frame. A connecting rod is rotatably disposed on the surface of the slider, and the other end of the connecting rod is rotatably connected to the surface of the mounting base. The installation mechanism also includes a plug block fixed to the back of the aerosol fire extinguisher, and a plug groove opened on the surface of the mounting base and adapted to the plug block.

[0013] Preferably, the inner walls on both sides of the strip frame are rotatably provided with bidirectional threaded columns, and the sides of the two sliders are provided with threaded holes that are threadedly connected to the outer surface of the bidirectional threaded columns. One end of the bidirectional threaded column extends to the outer surface of the housing and is fixedly provided with a turntable. The surface of the turntable is rotatably provided with a crank handle, and the inner side wall of the strip frame and the outer surface of the housing are both provided with sealing rotating holes for the bidirectional threaded columns to rotate. The inner wall of the strip frame is fixedly provided with a connecting block extending to the lower surface of the strip frame, and the surface of the connecting block is provided with a through hole that is rotatably connected to the outer surface of the bidirectional threaded column.

[0014] By adopting the above technical solution, the rotation of the bidirectional threaded column can drive the two sliders to move to both sides simultaneously, thereby enabling the mounting base to automatically enter the housing via the connecting rod.

[0015] Preferably, the surface of the slider has a rotating opening, and rotating seats are fixed on both sides of the mounting base. The inner walls of the rotating opening and the rotating seats are respectively rotatably provided with a first rotating shaft and a second rotating shaft. One end of the connecting rod is fixedly connected to the surface of the first rotating shaft, and the other end of the connecting rod is fixedly connected to the surface of the second rotating shaft.

[0016] By adopting the above technical solution, the mounting base can be moved by the connecting rod during the movement of the two sliders.

[0017] Preferably, the mounting base has a rectangular cavity inside, and a rectangular inflatable airbag is fixed to the inner wall of the rectangular cavity. A rectangular pressure plate that is slidably connected to the inner wall of the rectangular cavity is fixed to the end of the rectangular inflatable airbag. A pressing opening extending into the rectangular cavity is opened on the outer surface of the mounting base, and a pressing block corresponding to the pressing opening is fixed to the surface of the connecting block.

[0018] By adopting the above technical solution, the rectangular inflatable airbag can be automatically squeezed by pressing the rectangular pressure plate with the pressing block.

[0019] Preferably, the inner top wall and inner bottom wall of the insertion groove are provided with a first cylindrical sealing cavity, the inner wall of the first cylindrical sealing cavity is slidably provided with a first piston disc, the surface of the first piston disc is fixedly provided with a limiting post, the upper surface and lower surface of the insertion block are provided with a limiting groove adapted to the limiting post, and the end of the rectangular inflatable airbag is provided with two Z-shaped connecting tubes, one end of each of the two Z-shaped connecting tubes extends into the interior of the rectangular inflatable airbag, and the other end of each of the two Z-shaped connecting tubes extends into the interior of the two first cylindrical sealing cavities respectively.

[0020] By adopting the above technical solution, when the rectangular inflatable airbag is squeezed, the air inside the rectangular inflatable airbag can be injected into the two first cylindrical sealing cavities through the two Z-shaped connecting pipes, thereby driving the first piston disc and the limiting post to move automatically, thereby driving the limiting post to automatically insert into the limiting groove on the plug block, thus realizing the automatic fixing of the aerosol fire extinguisher and the mounting base.

[0021] Preferably, a first return spring is fixedly provided on the other side surface of the first piston disc, and the other end of the first return spring is fixedly connected to the inner wall of the first cylindrical sealing cavity.

[0022] By adopting the above technical solution, the rectangular inflatable airbag and the first piston disc can be automatically reset to their original positions as the mounting base moves outward.

[0023] Preferably, the surface of the strip frame is provided with a locking mechanism for locking the mounting base. The locking mechanism includes two symmetrical positioning blocks fixed on the back of the mounting base, and the surface of the connecting block is provided with two positioning grooves corresponding to the two positioning blocks.

[0024] By adopting the above technical solution, when the mounting base moves into the housing, the positioning block can be inserted into the positioning groove on the connecting block.

[0025] Preferably, the inner wall of the positioning groove is provided with a second cylindrical sealing cavity, and a second piston disc is slidably provided on the inner wall of the second cylindrical sealing cavity. A locking post is fixed on one side surface of the second piston disc, and a locking groove corresponding to the locking post is provided on the surface of the positioning block. A second return spring is fixed on the other side surface of the second piston disc, and the other end of the second return spring is fixedly connected to the inner wall of the second cylindrical sealing cavity.

[0026] By adopting the above technical solution, the automatic locking and fixing between the mounting base and the connecting block can be achieved by inserting the locking pin into the locking groove on the positioning block.

[0027] Preferably, a cylindrical inflatable airbag is fixed to the inner wall of the positioning groove, a third return spring is provided inside the cylindrical inflatable airbag, and an L-shaped connecting tube is provided at the end of the cylindrical inflatable airbag. One end of the L-shaped connecting tube extends into the interior of the cylindrical inflatable airbag, and the other end of the L-shaped connecting tube extends into the interior of the second cylindrical sealing cavity.

[0028] By adopting the above technical solution, after the cylindrical inflatable airbag is squeezed, the air inside the cylindrical inflatable airbag can be automatically injected into the second cylindrical sealed cavity through the L-shaped connecting pipe.

[0029] Preferably, the connecting block is provided with a Y-shaped pressure relief pipe inside, one end of the Y-shaped pressure relief pipe extends to the lower surface of the connecting block and is provided with a pressure relief valve, and the other two ends of the Y-shaped pressure relief pipe extend into the interior of two second cylindrical sealing cavities respectively.

[0030] By adopting the above technical solution, when replacing an aerosol fire extinguisher, the pressure relief valve can be opened to allow the Y-shaped pressure relief pipe to depressurize the two second cylindrical sealing chambers, thereby facilitating the automatic reset of the second piston disc, locking column, and cylindrical inflatable airbag.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. The pneumatic active self-extinguishing high-safety protection distribution box described in this application, through the setting of a fire extinguishing mechanism and an installation mechanism, enables the solid agent in the aerosol fire extinguisher to undergo a controllable oxidation-reduction reaction when the internal temperature of the distribution box reaches a set threshold of 150-200℃ during actual use. This instantaneously generates a large amount of fire extinguishing aerosol composed of extremely fine solid particles and inert gases such as N2 and CO2, which can quickly diffuse throughout the internal space of the distribution box, achieving the purpose of automatic fire extinguishing. Moreover, when installing the aerosol fire extinguisher, after inserting the aerosol fire extinguisher into the insertion slot on the mounting base through the plug-in block, the turntable is rotated by the crank handle. The rotation of the turntable drives the bidirectional threaded column to rotate, and the rotation of the bidirectional threaded column drives two sliders to move to both sides simultaneously. This allows the mounting base to move automatically into the box through the connecting rod, thereby activating the aerosol fire extinguishing mechanism. The device automatically enters the top of the box for rapid installation of the aerosol fire extinguisher. As the mounting base moves into the box and reaches the designated position, the pressing block on the connecting block passes through the pressing opening and squeezes the rectangular pressure plate. This causes the rectangular pressure plate to squeeze the rectangular inflatable airbag, allowing the gas inside the airbag to enter the first cylindrical sealing cavity through the Z-shaped connecting pipe. This, in turn, moves the first piston disc, causing the limiting post to automatically insert into the limiting groove on the plug-in block. This achieves automatic fixation between the aerosol fire extinguisher and the mounting base. It realizes active pneumatic locking triggered by mechanical compression during installation, i.e., active pneumatic fixing. This effectively improves the stability of the aerosol fire extinguisher after installation inside the distribution box, thus ensuring the stability of the aerosol fire extinguisher under reaction force during fire extinguishing and improving the overall safety protection level of the distribution box.

[0033] 2. The pneumatic active self-extinguishing high-safety protection distribution box described in this application, through the setting of a locking mechanism, allows the positioning block on the mounting base to be inserted into the positioning groove after the mounting base moves into the box body and reaches the designated position. As it continues to move, the positioning block compresses the cylindrical inflatable airbag, causing the air inside the cylindrical inflatable airbag to enter the second cylindrical sealing cavity through the L-shaped connecting pipe. This increases the air pressure inside the second cylindrical sealing cavity, driving the second piston disc and locking pin to move outwards. This allows the end of the locking pin to abut against the surface of the sliding positioning block. When the positioning block is inserted to its deepest position, the locking pin corresponds to the locking groove on the positioning block, and the locking pin automatically inserts into the locking groove on the positioning block, achieving automatic locking between the mounting base and the connecting block, thereby further improving the stability of the aerosol fire extinguisher after installation. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this application;

[0035] Figure 2 This is a schematic diagram of the top structure inside the box of this application;

[0036] Figure 3 This is a top-section structural diagram of the box and strip frame of this application;

[0037] Figure 4 This is a schematic diagram of the side section structure of the box in this application;

[0038] Figure 5 This application Figure 4 Enlarged structural diagram at point A in the middle;

[0039] Figure 6 This application Figure 4 Enlarged structural diagram at point B.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100. Distribution box body; 101. Box body; 102. Sealed door panel;

[0042] 200. Fire extinguishing mechanism; 201. Mounting base; 202. Aerosol fire extinguisher;

[0043] 300. Mounting mechanism; 301. Strip frame; 302. Slider; 303. Connecting rod; 304. Insertion block; 305. Insertion groove; 306. Bidirectional threaded post; 307. Turntable; 308. Connecting block; 309. Rectangular inflatable airbag; 3010. Rectangular pressure plate; 3011. Pressing opening; 3012. Pressing block; 3013. First cylindrical sealing cavity; 3014. First piston disc; 3015. Limiting post; 3016. Limiting groove; 3017. Z-shaped connecting pipe; 3018. First return spring;

[0044] 400. Locking mechanism; 401. Positioning block; 402. Positioning groove; 403. Second cylindrical sealing cavity; 404. Second piston disc; 405. Locking pin; 406. Locking groove; 407. Second return spring; 408. Cylindrical inflatable airbag; 409. Third return spring; 4010. L-shaped connecting pipe; 4011. Y-shaped pressure relief pipe. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 This application will be described in further detail below.

[0046] Example 1

[0047] Please refer to the following carefully. Figures 1 to 5A pneumatic active self-extinguishing high-safety protection distribution box includes a distribution box body 100, a fire extinguishing mechanism 200, and an installation mechanism 300. The distribution box body 100 includes a box body 101 and a sealing door panel 102 hinged to the front of the box body 101. The fire extinguishing mechanism 200 includes a mounting base 201 located at the top of the box body 101 and an aerosol fire extinguisher 202 located on the surface of the mounting base 201. The installation mechanism 300 includes a strip frame 301 fixed to the inner walls of the top two sides of the box body 101 and two symmetrical sliders 302 slidably located on the inner walls of the strip frame 301. A connecting rod 303 is rotatably mounted on the surface of the sliders 302, and the other end of the connecting rod 303 is rotatably connected to the surface of the mounting base 201. The installation mechanism 300 also includes a plug block 304 fixed to the back of the aerosol fire extinguisher 202 and a plug groove 305 opened on the surface of the mounting base 201 and adapted to the plug block 304.

[0048] Please refer to this carefully. Figure 2 , Figure 3 The inner walls of both sides of the strip frame 301 are rotatably provided with bidirectional threaded columns 306. The sides of the two sliders 302 are provided with threaded holes that are threaded to the outer surface of the bidirectional threaded columns 306. One end of the bidirectional threaded column 306 extends to the outer surface of the housing 101 and is fixedly provided with a turntable 307. A crank is rotatably provided on the surface of the turntable 307. The inner side wall of the strip frame 301 and the outer surface of the housing 101 are provided with sealing rotating holes for the bidirectional threaded columns 306 to rotate. The inner wall of the strip frame 301 is fixedly provided with a connecting block 308 extending to the lower surface of the strip frame 301. The surface of the connecting block 308 is provided with a through hole that is rotatably connected to the outer surface of the bidirectional threaded column 306.

[0049] Specifically, the rotation of the bidirectional threaded column 306 can drive the two sliders 302 to move to both sides simultaneously, thereby enabling the mounting base 201 to automatically enter the housing 101 via the connecting rod 303.

[0050] Please refer to this carefully. Figure 2 , Figure 3 The surface of the slider 302 has a rotating opening, and rotating seats are fixed on both sides of the mounting base 201. The inner walls of the rotating opening and the rotating seats are respectively rotatably provided with a first rotating shaft and a second rotating shaft. One end of the connecting rod 303 is fixedly connected to the surface of the first rotating shaft, and the other end of the connecting rod 303 is fixedly connected to the surface of the second rotating shaft.

[0051] Specifically, the mounting base 201 can be moved via the connecting rod 303 during the movement of the two sliders 302.

[0052] Please refer to this carefully. Figure 4 , Figure 5The mounting base 201 has a rectangular cavity inside, and a rectangular inflatable airbag 309 is fixed on the inner wall of the rectangular cavity. A rectangular pressure plate 3010 that is slidably connected to the inner wall of the rectangular cavity is fixed at the end of the rectangular inflatable airbag 309. A pressing opening 3011 extending into the rectangular cavity is opened on the outer surface of the mounting base 201. A pressing block 3012 corresponding to the pressing opening 3011 is fixed on the surface of the connecting block 308.

[0053] Specifically, the rectangular inflatable airbag 309 can be automatically compressed by pressing the rectangular pressure plate 3010 with the pressing block 3012.

[0054] Please refer to this carefully. Figure 4 , Figure 5 The inner top and bottom walls of the insertion groove 305 are provided with first cylindrical sealing cavities 3013. The inner wall of the first cylindrical sealing cavity 3013 is slidably provided with a first piston disc 3014. The surface of the first piston disc 3014 is fixedly provided with a limiting post 3015. The upper and lower surfaces of the insertion block 304 are provided with limiting grooves 3016 that are adapted to the limiting post 3015. The ends of the rectangular inflatable airbag 309 are provided with two Z-shaped connecting pipes 3017, and one end of each Z-shaped connecting pipe 3017 extends into the interior of the rectangular inflatable airbag 309. The other ends of each Z-shaped connecting pipe 3017 extend into the interior of the two first cylindrical sealing cavities 3013 respectively.

[0055] Specifically, when the rectangular inflatable airbag 309 is compressed, the air inside the rectangular inflatable airbag 309 can be injected into the two first cylindrical sealing cavities 3013 through the two Z-shaped connecting pipes 3017, thereby driving the first piston disc 3014 and the limiting post 3015 to move automatically, thereby driving the limiting post 3015 to automatically insert into the limiting groove 3016 on the plug block 304, thus realizing the automatic fixation of the aerosol fire extinguisher 202 and the mounting base 201.

[0056] Please refer to this carefully. Figure 4 , Figure 5 A first return spring 3018 is fixedly provided on the other side surface of the first piston disc 3014, and the other end of the first return spring 3018 is fixedly connected to the inner wall of the first cylindrical sealing cavity 3013.

[0057] Specifically, during the outward movement of the mounting base 201, the rectangular inflatable airbag 309 and the first piston disc 3014 can automatically reset with the limiting post 3015.

[0058] In this embodiment, by setting up a fire extinguishing mechanism 200 and an installation mechanism 300, when the temperature inside the distribution box 101 reaches a set threshold of 150-200℃ during actual use, the solid agent inside the aerosol fire extinguisher 202 will undergo a controllable oxidation-reduction reaction, instantly generating a large amount of fire extinguishing aerosol composed of extremely fine solid particles and inert gases such as N2 and CO2. This aerosol can quickly diffuse throughout the entire internal space of the distribution box, achieving the purpose of automatic fire extinguishing. Moreover, when installing the aerosol fire extinguisher 202, after inserting the aerosol fire extinguisher 202 into the insertion slot 305 on the mounting base 201 through the insertion block 304, the turntable 307 is rotated by the crank handle. The rotation of the turntable 307 drives the bidirectional threaded column 306 to rotate. The rotation of the bidirectional threaded column 306 drives the two sliders 302 to move to both sides simultaneously. Thus, the mounting base 201 can be automatically moved into the box 101 through the connecting rod 303, thereby driving the aerosol fire extinguisher to move into the box 101. The aerosol fire extinguisher 202 automatically enters the top of the box 101, enabling rapid installation. As the mounting base 201 moves into the box 101 and reaches the designated position, the pressing block 3012 on the connecting block 308 passes through the pressing opening 3011 to press the rectangular pressure plate 3010. This causes the rectangular pressure plate 3010 to press the rectangular inflatable airbag 309, allowing the gas inside the airbag 309 to enter the first cylindrical sealing cavity 3013 through the Z-shaped connecting pipe 3017. This, in turn, moves the first piston disc 3014, causing the limiting post 3015 to automatically insert into the limiting groove 3016 on the plug-in block 304. This achieves automatic fixation between the aerosol fire extinguisher 202 and the mounting base 201, effectively improving the stability of the aerosol fire extinguisher 202 after installation inside the distribution box, and ensuring the stability of the aerosol fire extinguisher 202 under reaction force during fire extinguishing.

[0059] Example 2

[0060] Based on Example 1, referring to Figures 4 to 6 And unlike Example 1, the following is true:

[0061] Please refer to this carefully. Figure 4 , Figure 5 The surface of the strip frame 301 is provided with a locking mechanism 400 for locking the mounting base 201. The locking mechanism 400 includes two symmetrical positioning blocks 401 fixed on the back of the mounting base 201. The surface of the connecting block 308 is provided with two positioning grooves 402 corresponding to the two positioning blocks 401.

[0062] Specifically, when the mounting base 201 moves into the housing 101, the positioning block 401 can be inserted into the positioning groove 402 on the connecting block 308.

[0063] Please refer to this carefully. Figure 4 , Figure 6 The inner wall of the positioning groove 402 is provided with a second cylindrical sealing cavity 403, and a second piston disc 404 is slidably provided on the inner wall of the second cylindrical sealing cavity 403. A locking pin 405 is fixedly provided on one side surface of the second piston disc 404, and a locking groove 406 corresponding to the locking pin 405 is provided on the surface of the positioning block 401. A second return spring 407 is fixedly provided on the other side surface of the second piston disc 404, and the other end of the second return spring 407 is fixedly connected to the inner wall of the second cylindrical sealing cavity 403.

[0064] Specifically, the locking pin 405 can be inserted into the locking groove 406 on the positioning block 401 to achieve automatic locking and fixing between the mounting base 201 and the connecting block 308.

[0065] Please refer to this carefully. Figure 4 , Figure 6 A cylindrical inflatable airbag 408 is fixedly provided on the inner wall of the positioning groove 402. A third return spring 409 is provided inside the cylindrical inflatable airbag 408. An L-shaped connecting pipe 4010 is provided at the end of the cylindrical inflatable airbag 408. One end of the L-shaped connecting pipe 4010 extends into the interior of the cylindrical inflatable airbag 408, and the other end of the L-shaped connecting pipe 4010 extends into the interior of the second cylindrical sealing cavity 403.

[0066] Specifically, after the cylindrical inflatable airbag 408 is compressed, the air inside the cylindrical inflatable airbag 408 can be automatically injected into the second cylindrical sealing cavity 403 through the L-shaped connecting pipe 4010.

[0067] Please refer to this carefully. Figure 4 , Figure 6 The connecting block 308 is provided with a Y-shaped pressure relief pipe 4011. One end of the Y-shaped pressure relief pipe 4011 extends to the lower surface of the connecting block 308 and is provided with a pressure relief valve. The other two ends of the Y-shaped pressure relief pipe 4011 extend to the interior of the two second cylindrical sealing cavities 403 respectively.

[0068] Specifically, when replacing the aerosol fire extinguisher 202, the pressure relief valve can be opened to allow the Y-shaped pressure relief pipe 4011 to depressurize the two second cylindrical sealing chambers 403, thereby facilitating the automatic reset of the second piston disc 404, the locking pin 405, and the cylindrical inflatable airbag 408.

[0069] In this embodiment, by setting a locking mechanism 400, after the mounting base 201 moves towards the housing 101 and reaches the designated position, the positioning block 401 on the mounting base 201 can be inserted into the positioning groove 402. When moving further, the positioning block 401 can compress the cylindrical inflatable airbag 408, causing the air inside the cylindrical inflatable airbag 408 to enter the second cylindrical sealing cavity 403 through the L-shaped connecting pipe 4010, increasing the air pressure inside the second cylindrical sealing cavity 403 and driving the second piston disc. 404 and locking pin 405 have an outward force, so that the end of locking pin 405 can abut against the surface of sliding positioning block 401. When positioning block 401 is inserted to the deepest position, locking pin 405 corresponds to locking groove 406 on positioning block 401. Locking pin 405 automatically inserts into locking groove 406 on positioning block 401, realizing automatic locking between mounting base 201 and connecting block 308, thereby further improving the stability of aerosol fire extinguisher 202 after installation.

[0070] Working principle:

[0071] During actual use, when the temperature inside the distribution box 101 reaches the set threshold of 150-200℃, the solid agent inside the aerosol fire extinguisher 202 undergoes a controllable oxidation-reduction reaction, instantly generating a large amount of extinguishing aerosol composed of extremely fine solid particles and inert gases such as N2 and CO2. This aerosol can quickly diffuse throughout the entire internal space of the distribution box, achieving the purpose of automatic fire extinguishing. Furthermore, when installing the aerosol fire extinguisher 202, it can be inserted into the insertion slot 305 on the mounting base 201 via the insertion block 304. Then, by turning the crank handle to rotate the turntable 307, the rotation of the turntable 307 drives the bidirectional threaded post 306 to rotate, which in turn drives two sliding... Block 302 moves to both sides simultaneously, thereby enabling the mounting base 201 to automatically move into the housing 101 via the connecting rod 303. This, in turn, causes the aerosol fire extinguisher 202 to automatically enter the inner top of the housing 101, achieving rapid installation of the aerosol fire extinguisher 202. Furthermore, as the mounting base 201 moves into the housing 101 and reaches the designated position, the pressing block 3012 on the connecting block 308 passes through the pressing opening 3011 to press the rectangular pressure plate 3010. This causes the rectangular pressure plate 3010 to press the rectangular inflatable airbag 309, thus actively triggering the pneumatic drive process. This allows the gas inside the rectangular inflatable airbag 309 to enter the first cylindrical sealed cavity 3 through the Z-shaped connecting pipe 3017. Within 013, the first piston disc 3014 moves, thereby causing the limiting post 3015 to automatically insert into the limiting groove 3016 on the plug-in block 304, realizing automatic fixation between the aerosol fire extinguisher 202 and the mounting base 201. This effectively improves the stability of the aerosol fire extinguisher 202 after installation inside the distribution box, thus ensuring the stability of the aerosol fire extinguisher 202 after being subjected to reaction force during fire extinguishing. Moreover, after the mounting base 201 moves into the box 101 and reaches the designated position, the positioning block 401 on the mounting base 201 can be inserted into the positioning groove 402. When it continues to move, the positioning block 401 can compress the cylindrical inflatable airbag 408, actively forming an air pressure source, so that the cylindrical airbag 408... Air from the inflatable airbag 408 enters the second cylindrical sealing cavity 403 through the L-shaped connecting pipe 4010, increasing the air pressure inside the second cylindrical sealing cavity 403. This increases the outward force of the second piston disc 404 and the locking pin 405, allowing the end of the locking pin 405 to press against the surface of the sliding positioning block 401. When the positioning block 401 is inserted to its deepest position, the locking pin 405 corresponds to the locking groove 406 on the positioning block 401. Under pneumatic pressure, the locking pin 405 automatically inserts into the locking groove 406 on the positioning block 401, achieving automatic locking between the mounting base 201 and the connecting block 308, thereby further improving the stability of the aerosol fire extinguisher 202 after installation.

Claims

1. A pneumatically operated, active, self-extinguishing, high-safety-protection distribution box, characterized in that: It includes the distribution box body (100), the fire extinguishing mechanism (200), and the installation mechanism (300). The distribution box body (100) includes a box body (101) and a sealing door panel (102) hinged to the front of the box body (101). The fire extinguishing mechanism (200) includes a mounting base (201) disposed at the top of the housing (101) and an aerosol fire extinguisher (202) disposed on the surface of the mounting base (201). The installation mechanism (300) includes a strip frame (301) fixed on the inner walls of the top two sides of the box (101), and two symmetrical sliders (302) slidably disposed on the inner wall of the strip frame (301). A connecting rod (303) is rotatably disposed on the surface of the slider (302), and the other end of the connecting rod (303) is rotatably connected to the surface of the mounting base (201). The installation mechanism (300) also includes a plug block (304) fixed on the back of the aerosol fire extinguisher (202), and a plug groove (305) opened on the surface of the mounting base (201) and adapted to the plug block (304).

2. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 1, characterized in that, The inner walls of both sides of the strip frame (301) are rotatably provided with bidirectional threaded columns (306). The sides of the two sliders (302) are provided with threaded holes that are threaded to the outer surface of the bidirectional threaded columns (306). One end of the bidirectional threaded column (306) extends to the outer surface of the box (101) and is fixedly provided with a turntable (307). The surface of the turntable (307) is rotatably provided with a crank handle. The inner side wall of the strip frame (301) and the outer surface of the box (101) are both provided with sealed rotating holes for the bidirectional threaded columns (306) to rotate. The inner wall of the strip frame (301) is fixedly provided with a connecting block (308) extending to the lower surface of the strip frame (301). The surface of the connecting block (308) is provided with a through hole that is rotatably connected to the outer surface of the bidirectional threaded column (306).

3. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 2, characterized in that, The surface of the slider (302) is provided with a rotating opening, and rotating seats are fixed on both sides of the mounting base (201). The inner walls of the rotating opening and the rotating seats are respectively provided with a first rotating shaft and a second rotating shaft. One end of the connecting rod (303) is fixedly connected to the surface of the first rotating shaft, and the other end of the connecting rod (303) is fixedly connected to the surface of the second rotating shaft.

4. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 3, characterized in that, The mounting base (201) has a rectangular cavity inside, and a rectangular inflatable airbag (309) is fixed on the inner wall of the rectangular cavity. A rectangular pressure plate (3010) that is slidably connected to the inner wall of the rectangular cavity is fixed at the end of the rectangular inflatable airbag (309). A pressing opening (3011) extending into the rectangular cavity is opened on the outer surface of the mounting base (201). A pressing block (3012) corresponding to the pressing opening (3011) is fixed on the surface of the connecting block (308).

5. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 4, characterized in that, The inner top and bottom walls of the insertion groove (305) are provided with first cylindrical sealing cavities (3013). The inner wall of the first cylindrical sealing cavity (3013) is slidably provided with a first piston disc (3014). The surface of the first piston disc (3014) is fixedly provided with a limiting post (3015). The upper and lower surfaces of the insertion block (304) are provided with limiting grooves (3016) that are adapted to the limiting post (3015). The ends of the rectangular inflatable airbag (309) are provided with two Z-shaped connecting pipes (3017). One end of each of the two Z-shaped connecting pipes (3017) extends into the interior of the rectangular inflatable airbag (309), and the other end of each of the two Z-shaped connecting pipes (3017) extends into the interior of the two first cylindrical sealing cavities (3013).

6. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 5, characterized in that, A first return spring (3018) is fixedly provided on the other side surface of the first piston disc (3014), and the other end of the first return spring (3018) is fixedly connected to the inner wall of the first cylindrical sealing cavity (3013).

7. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 6, characterized in that, The surface of the strip frame (301) is provided with a locking mechanism (400) for locking the mounting base (201). The locking mechanism (400) includes two symmetrical positioning blocks (401) fixed on the back of the mounting base (201). The surface of the connecting block (308) is provided with two positioning grooves (402) corresponding to the two positioning blocks (401).

8. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 7, characterized in that, The inner wall of the positioning groove (402) is provided with a second cylindrical sealing cavity (403), and a second piston disc (404) is slidably provided on the inner wall of the second cylindrical sealing cavity (403). A locking pin (405) is fixedly provided on one side surface of the second piston disc (404). A locking groove (406) corresponding to the locking pin (405) is provided on the surface of the positioning block (401). A second return spring (407) is fixedly provided on the other side surface of the second piston disc (404). The other end of the second return spring (407) is fixedly connected to the inner wall of the second cylindrical sealing cavity (403).

9. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 8, characterized in that, The inner wall of the positioning groove (402) is fixed with a cylindrical inflatable airbag (408), and a third return spring (409) is provided inside the cylindrical inflatable airbag (408). An L-shaped connecting pipe (4010) is provided at the end of the cylindrical inflatable airbag (408). One end of the L-shaped connecting pipe (4010) extends into the interior of the cylindrical inflatable airbag (408), and the other end of the L-shaped connecting pipe (4010) extends into the interior of the second cylindrical sealing cavity (403).

10. The pneumatic active self-extinguishing high-safety protection distribution box according to claim 9, characterized in that, The connecting block (308) is provided with a Y-shaped pressure relief pipe (4011) inside. One end of the Y-shaped pressure relief pipe (4011) extends to the lower surface of the connecting block (308) and is provided with a pressure relief valve. The other two ends of the Y-shaped pressure relief pipe (4011) extend to the interior of the two second cylindrical sealing cavities (403) respectively.

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