Automatic fire extinguishing device for electric power equipment

Abstract

The application discloses an automatic fire extinguishing device for electric power equipment. The device comprises a fire extinguishing agent storage tank, a first blocking structure, a second blocking structure, an opening adjusting structure and an automatic control driving structure. When the automatic control driving structure detects a fire signal, the first blocking structure and the second blocking structure are relatively moved, at this time, the first through hole can be communicated with the second through hole, the fire extinguishing agent with high pressure in the fire extinguishing agent storage tank enters the second blocking structure through the first through hole and the second through hole, and drives the opening adjusting structure to move, so that the opening degree of the injection port is increased, the fire extinguishing agent can be sprayed outwards through the injection port with large opening degree, and the purpose of quickly reaching the fire source is achieved. With the gradually reduced pressure of the entering fire extinguishing agent, the driving force of the fire extinguishing agent on the opening adjusting structure is gradually reduced, at this time, the opening adjusting structure is moved back and forth, so that the opening degree of the injection port is gradually reduced, so that the fire extinguishing agent can still be sprayed outwards at a relatively high speed and reach the fire source, and the better fire extinguishing effect is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power equipment, and particularly relates to an automatic fire extinguishing device for power equipment. BACKGROUND

[0002] The automatic fire extinguishing device in high-altitude power equipment is a device for automatically releasing fire extinguishing agent when a fire occurs, thereby being able to protect high-altitude power equipment and the surrounding environment from the influence of the fire.

[0003] In the prior art, a Chinese invention patent with the application number CN202221890282.3 provides an automatic fire extinguishing device for high-altitude power distribution network equipment. In the automatic fire extinguishing device, when it is detected that a fire occurs in the equipment, the first rotary motor is started, and the rotating blocking plate and the fixed blocking plate in the fire extinguishing agent storage tank are rotated relative to each other. By alternately aligning and staggering the through holes on the rotating blocking plate and the fixed blocking plate, the effect of intermittently spraying the fire extinguishing agent can be achieved, thereby achieving the purpose of extinguishing the fire and helping to improve the coverage range of the fire extinguishing agent. However, the above-mentioned automatic fire extinguishing device has the problem that when the pressure in the fire extinguishing agent storage tank gradually decreases, the speed of the fire extinguishing agent sprayed outward decreases too quickly, which prolongs the time for the fire extinguishing agent to reach the fire source, thereby weakening the fire extinguishing effect.

[0004] Based on the above, there is an urgent need for an automatic fire extinguishing device for power equipment to solve the technical problems existing in the prior art. SUMMARY

[0005] The purpose of the present application is to provide an automatic fire extinguishing device for power equipment, which aims to solve the problem of too fast decrease in the speed of fire extinguishing agent sprayed outward during the fire extinguishing process, to ensure that the fire extinguishing agent can maintain a relatively fast speed to reach the fire source, thereby ensuring a better fire extinguishing effect.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] The automatic fire extinguishing device for power equipment comprises: a fire extinguishing agent storage tank filled with fire extinguishing agent with a preset pressure; a first blocking structure provided in the fire extinguishing agent storage tank and having a first through hole; a second blocking structure limitingly provided in the fire extinguishing agent storage tank and movably arranged in the first blocking structure; the second blocking structure has a second through hole and a spraying port connected thereto; the second through hole is connected to the first through hole; and the spraying port is configured to spray the fire extinguishing agent outward from the fire extinguishing agent storage tank; an opening adjusting structure reciprocally movably arranged in the second blocking structure and capable of changing the opening degree of the spraying port according to the pressure of the fire extinguishing agent; and an automatic control driving structure transmissionally connected to the first blocking structure or the second blocking structure and capable of controlling the movement of the first blocking structure or the second blocking structure according to whether a fire signal is detected.

[0008] Optionally, the opening adjusting structure comprises an elastic member, a connecting rod and an opening adjusting plate, one end of the elastic member is fixedly connected to the inner wall of the second blocking structure, the other end of the elastic member is fixedly connected to the connecting rod, the connecting rod is fixedly connected to the opening adjusting plate, and the opening adjusting plate is movably attached to the ejection port.

[0009] Optionally, the second blocking structure comprises a conduit, a collecting pipe and a plurality of ejection pipes, one end of the conduit is positioned and arranged in the fire extinguishing agent storage tank, the portion of the conduit located in the fire extinguishing agent storage tank is provided with the second through hole, the collecting pipe extends in a direction perpendicular to the axis of the conduit and is fixedly connected to one end of the conduit, the collecting pipe has an inner cavity connected to the second through hole, and a plurality of ejection pipes are fixedly connected to the collecting pipe in parallel and at intervals, and the ejection pipes have ejection ports connected to the inner cavity.

[0010] Optionally, one end of the elastic member is fixedly connected to the other end of the conduit;

[0011] The connecting rod comprises a piston, a first rod and a second rod, the piston is slidably arranged in the conduit, the elastic member and the first rod are fixedly connected to the two sides of the piston respectively, the first rod extends along the axis of the conduit, a push rod is fixedly arranged at the end of the first rod away from the piston, the second rod extends along the axis of the collecting pipe, one end of the second rod is fixedly connected to the opening adjusting plate, a transmission bar is fixedly arranged at the other end of the second rod, the transmission bar has an obliquely arranged sliding hole, and the push rod is slidably arranged in the sliding hole.

[0012] Optionally, the number of ejection pipes is greater than the number of opening adjusting plates.

[0013] Optionally, the first blocking structure comprises a sleeve ring and a plurality of support frames, the sleeve ring is provided with the first through hole, the sleeve ring is sleeved on the second blocking structure, a plurality of support frames are fixedly arranged on the sleeve ring in a circumferential direction, and the two ends of the support frame abut against the sleeve ring and the inner side wall of the fire extinguishing agent storage tank respectively, and the automatic control driving structure is transmissionally connected to the second blocking structure.

[0014] Optionally, the automatic control driving structure comprises a sensor, a controller, a first driving assembly and a second driving assembly, the sensor is connected to the controller and is used for detecting the fire signal, the controller is connected to the first driving assembly, the first driving assembly is transmissionally connected to the fire extinguishing agent storage tank and the second driving assembly, so that the fire extinguishing agent storage tank can move linearly in a predetermined direction, and the second driving assembly is transmissionally connected to the first blocking structure or the second blocking structure.

[0015] Optionally, the first driving assembly comprises a rotary motor, a first gear, a second gear, a screw rod and a sliding block, the rotary motor is fixedly arranged and connected to the controller, an output shaft of the rotary motor is drivingly connected to the first gear, the first gear is meshingly connected to the second gear, the second gear is fixedly connected to the screw rod, the screw rod is arranged along the preset direction, and the sliding block is fixedly connected to the fire extinguishing agent tank and has an internally threaded segment, the screw rod is arranged through the sliding block and is threadedly connected to the internally threaded segment.

[0016] Optionally, the first driving assembly comprises two parallel arranged screw rods and second gears, and the first gear is meshingly connected to the two second gears.

[0017] Optionally, the second driving assembly comprises a third gear and a rack, the third gear is fixedly connected to the first blocking structure or the second blocking structure and is meshingly connected to the rack, and the rack is fixedly arranged and extends along the preset direction.

[0018] The present application has the following advantages:

[0019] The automatic fire extinguishing device for electric power equipment provided by the present application can realize the relative movement between the first blocking structure and the second blocking structure after the automatic control driving structure detects the fire signal, so that the first through hole and the second through hole are communicated, the fire extinguishing agent with high pressure in the fire extinguishing agent tank enters the second blocking structure through the first through hole and the second through hole, drives the opening adjusting structure to move, increases the opening degree of the injection port, and the fire extinguishing agent can be sprayed outwards at a faster speed to reach the fire source. As the pressure of the fire extinguishing agent in the second blocking structure gradually decreases, the driving force of the fire extinguishing agent on the opening adjusting structure also gradually decreases, and the opening adjusting structure moves back and forth, so that the opening degree of the injection port gradually decreases. In this way, the fire extinguishing agent can still be sprayed outwards at a faster speed to reach the fire source, thereby ensuring better fire extinguishing effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure schematic view of the automatic fire extinguishing device for electric power equipment provided by the present application assembled in a distribution box;

[0021] Figure 2 Connection schematic view of the fire extinguishing agent tank and the first blocking structure and the second blocking structure provided by the present application;

[0022] Figure 3 Structure schematic view of the first blocking structure and the second blocking structure after explosion provided by the present application;

[0023] Figure 4The internal structure diagram of the second sealing structure provided by the application;

[0024] Figure 5 The Figure 4 The local enlarged view at A in the middle;

[0025] Figure 6 The front view of the automatic fire extinguishing device for power equipment provided by the application assembled in the distribution box;

[0026] Figure 7 The structure diagram of the first driving assembly provided by the application;

[0027] Figure 8 The schematic diagram of the connection of part structures in the automatic fire extinguishing device for power equipment provided by the application;

[0028] Figure 9 The bottom view of the connection of part structures in the automatic fire extinguishing device for power equipment provided by the application.

[0029] In the figure:

[0030] 100, distribution box; 110, dust baffle;

[0031] 1, fire extinguishing agent storage tank;

[0032] 2, first sealing structure; 21, collar; 211, first through hole; 22, support frame;

[0033] 3, second sealing structure; 31, guide pipe; 311, second through hole; 32, collecting pipe; 33, injection pipe; 331, injection port;

[0034] 41, elastic member; 42, connecting rod; 421, piston; 422, first rod; 4221, push rod; 423, second rod; 4231, transmission bar; 42311, sliding hole; 43, opening adjusting plate;

[0035] 51, sensor; 52, first driving assembly; 521, shell; 522, rotary motor; 523, first gear; 524, second gear; 525, screw rod; 526, sliding block; 53, second driving assembly; 531, third gear; 532, rack. DETAILED DESCRIPTION

[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0037] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0039] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application. Figures 1 to 9 The power equipment automatic fire extinguishing device provided by the present application will be described below in conjunction with specific embodiments. Optionally, in the present embodiment, the power equipment automatic fire extinguishing device is arranged in high-altitude power distribution network equipment, such as power distribution box 100, to improve the safety of high-altitude power distribution network equipment.

[0040] Embodiment one

[0041] Specifically, the power equipment automatic fire extinguishing device provided by the present application will be described below in conjunction with specific embodiments. Figures 1 to 5As shown, the electric power equipment automatic fire extinguishing device comprises a fire extinguishing agent storage tank 1, a first plugging structure 2, a second plugging structure 3, an opening adjusting structure and an automatic control driving structure. The fire extinguishing agent storage tank 1 is filled with carbon dioxide fire extinguishing agent with a preset pressure, and the specific pressure value is determined by the actual working condition. The first plugging structure 2 is arranged in the fire extinguishing agent storage tank 1 and is provided with a first through hole 211 communicating with the fire extinguishing agent storage tank 1. The second plugging structure 3 is arranged in the fire extinguishing agent storage tank 1 and can move relative to the first plugging structure 2. The second plugging structure 3 is provided with a second through hole 311 and a spray opening 331 communicating with each other, and the second through hole 311 can communicate with the first through hole 211. The fire extinguishing agent can be sprayed to the fire source through the spray opening 331. The opening adjusting structure is reciprocally arranged in the second plugging structure 3 and can change the opening degree of the spray opening 331 according to the pressure of the fire extinguishing agent. The automatic control driving structure is drivingly connected to the first plugging structure 2 or the second plugging structure 3. When the fire signal is detected, the first plugging structure 2 or the second plugging structure 3 can be controlled to move, so that the second through hole 311 and the first through hole 211 are communicated.

[0042] Through the above-mentioned electric power equipment automatic fire extinguishing device, when the automatic control driving structure detects the fire signal, the relative movement between the first plugging structure 2 and the second plugging structure 3 can be controlled. When the first through hole 211 and the second through hole 311 are communicated, the fire extinguishing agent with high pressure in the fire extinguishing agent storage tank 1 can enter the second plugging structure 3 through the first through hole 211 and the second through hole 311, and drive the opening adjusting structure to move, so that the opening degree of the spray opening 331 is increased, and the fire extinguishing agent can be sprayed outwards through the spray opening 331 with large opening degree, so as to achieve the purpose of quickly reaching the fire source. With the gradual reduction of the fire extinguishing agent, the pressure of the fire extinguishing agent entering the second plugging structure 3 is also gradually reduced, and the driving force of the fire extinguishing agent on the opening adjusting structure is also gradually reduced. At this time, the opening adjusting structure reciprocally moves, the opening degree of the spray opening 331 is gradually reduced, and the fire extinguishing agent can still be sprayed outwards at a faster speed and reach the fire source, so that the fire can be timely controlled, thereby ensuring better fire extinguishing effect.

[0043] It can be understood that when the fire does not occur, the second through hole 311 and the first through hole 211 are arranged in a staggered manner, and the opening adjusting structure is also arranged in a position sealing the spray opening 331, so as to effectively eliminate the risk of leakage of the fire extinguishing agent and ensure the fire extinguishing effect.

[0044] Specifically, in the embodiment, the opening adjusting structure is arranged in the second plugging structure 3, and the automatic control driving structure is drivingly connected to the second plugging structure 3. Figure 2 , Figure 3As shown, the first blocking structure 2 comprises a sleeve 21 and three support frames 22, wherein the sleeve 21 is provided with a first through hole 211, and is sleeved on the second blocking structure 3, and the three support frames 22 are fixedly arranged on the sleeve 21 at equal intervals in the circumferential direction, and the end of the support frame 22 away from the sleeve 21 abuts against the inner side wall of the fire extinguishing agent storage tank 1, and at this time, the automatic control driving structure is drivingly connected to the second blocking structure 3. Through the above arrangement, not only the overall structure of the first blocking structure 2 is simplified, but also the first blocking structure 2 can be stably installed in the fire extinguishing agent storage tank 1, thereby ensuring the connection tightness between the first blocking structure 2 and the second blocking structure 3.

[0045] Specifically, in the present embodiment, the second blocking structure 3 comprises a guide pipe 31, a collecting pipe 32 and four spray pipes 33. Wherein, the guide pipe 31 is arranged vertically, one end of which is positioned and penetrates the fire extinguishing agent storage tank 1, and the part located in the fire extinguishing agent storage tank 1 is provided with a second through hole 311; the collecting pipe 32 is fixedly connected to one end of the guide pipe 31, which is arranged extending horizontally and has an inner cavity communicating with the second through hole 311; the four spray pipes 33 are arranged extending vertically and are fixedly connected to the collecting pipe 32 at equal intervals, and each of the spray pipes 33 is provided with a spray port 331 communicating with the inner cavity. By arranging the collecting pipe 32 and the plurality of spray pipes 33, the fire extinguishing agent can be widely sprayed, so as to achieve the purpose of quickly extinguishing the fire by expanding the coverage range of the fire extinguishing agent.

[0046] In combination Figure 4 , Figure 5 As shown, the opening adjusting structure provided by the present embodiment comprises an elastic member 41, a connecting rod 42 and an opening adjusting plate 43, the elastic member 41 is a tension spring, one end of the tension spring is fixedly connected to the other end of the guide pipe 31; the connecting rod 42 comprises a piston 421, a first rod 422 and a second rod 423, the piston 421 is slidably arranged in the guide pipe 31, and the two sides of the piston 421 are fixedly connected with the tension spring and the first rod 422 respectively, the first rod 422 is arranged extending vertically, and the end of the first rod 422 away from the piston 421 is fixedly provided with a push rod 4221, the second rod 423 is arranged extending horizontally, one end of the second rod 423 is fixedly connected with the opening adjusting plate 43, and the other end of the second rod 423 is fixedly provided with a transmission bar 4231, the transmission bar 4231 has an obliquely arranged sliding hole 42311, and the push rod 4221 is slidably arranged in the sliding hole 42311.

[0047] Exemplarily, when the fire extinguishing agent enters into the conduit 31 through the second through hole 311, the pressure in the conduit 31 is relatively large, the fire extinguishing agent pushes the piston 421 to move upward, the tension spring is compressed, and the first rod 422 moves vertically upward with the push rod 4221, the push rod 4221 slides in the sliding hole 42311 to pull the second rod 423 to move leftward, thereby pulling the opening adjusting plate 43 to move leftward and gradually increasing the opening degree of the injection hole; similarly, when the fire extinguishing agent storage decreases to cause insufficient gas pressure, the tension spring gradually rebounds, at this time, the first rod 422 and the push rod 4221 descend, driving the second rod 423 and the opening adjusting plate 43 to move rightward, so that the opening degree of the injection hole 331 gradually decreases, thereby realizing the purpose of changing the opening degree of the injection hole 331 according to the pressure of the fire extinguishing agent, and effectively improving the stability and reliability of the opening adjusting structure when the moving direction of the opening adjusting plate 43 is perpendicular to the moving direction of the elastic member 41.

[0048] Of course, in other embodiments, the second plugging structure 3 can also only include the conduit 31 which is vertically extended, thereby omitting the setting of the collecting pipe 32 and the injection pipe 33, which helps to reduce the production and manufacturing cost of the second plugging structure 3 and simplify the structure, the second through hole 311 is opened on the side wall of one end of the conduit 31 at this time, the connecting rod 42 is vertically arranged, and the end of the connecting rod 42 away from the elastic member 41 is fixedly connected with the opening adjusting plate 43 which is attached to the inner side wall of the conduit 31. Through the above setting, when the elastic member 41 is stretched and contracted, the opening adjusting plate 43 can be driven by the connecting rod 42 to reciprocate along the vertical direction, at this time, the change of the opening degree of the injection hole 331 can still be realized. Therefore, the person skilled in the art can determine the specific structure of the second plugging structure 3 and the opening adjusting structure according to the actual needs, and the present application is not limited thereto.

[0049] Specifically, in combination with Figure 1 , Figure 6As shown, the above-mentioned automatic control drive structure includes a sensor 51, a controller (not shown in the figure), a first drive component 52, and a second drive component 53. The sensor 51 is a smoke sensor installed inside the distribution box 100 to detect the presence of smoke within the distribution box 100 to determine if a fire has occurred. The controller is connected to the first drive component 52 to automatically control its operation by receiving signals from the sensor 51. The first drive component 52 is installed on the top inner wall of the distribution box 100 and is connected to the extinguishing agent storage tank 1 and the second drive component 53. The second drive component 53 is connected to the conduit 31. In practical use, when the sensor 51 detects smoke, it sends a smoke signal to the controller. The controller then activates the first drive component 52, enabling the extinguishing agent to be sprayed outwards through the nozzle 331. Simultaneously, the extinguishing agent storage tank 1 can move horizontally within the distribution box 100, effectively improving the coverage and extinguishing effect of the extinguishing agent.

[0050] Preferably, such as Figure 6 As shown, the distribution box 100 is equipped with five sensors 51, which are located at the four corners and the center of the distribution box 100. By widely setting up multiple sensors 51, the sensitivity to fire response is improved, thereby enabling a faster fire extinguishing response.

[0051] More specifically, see reference Figure 7 As shown, the first drive assembly 52 includes a housing 521, a rotary motor 522, a first gear 523, a second gear 524, a screw 525, and a slider 526. The housing 521 has a rectangular structure, its length direction is parallel to the length direction of the distribution box 100, and it is fixedly connected to the top of the inner wall of the distribution box 100. The housing 521 also has an opening slot. The rotary motor 522 is connected to the controller and is fixedly installed on the outer wall of the housing 521. The first gear 523 is located in the opening slot and is fixedly connected to the output shaft of the rotary motor 522. The second gear 524 meshes with the first gear 523 and is fixedly sleeved on the screw 525. The screw 525 extends along the length direction of the housing 521. The bottom of the slider 526 is fixedly connected to the fire extinguishing agent storage tank 1, and the slider 526 has an internal thread section. The screw 525 passes through the slider 526 and is threaded to the internal thread section. The combination of rotary motor 522, first gear 523, second gear 524 and screw 525 ensures that slider 526 and extinguishing agent tank 1 can accurately reach the fire source. The housing 521 can also effectively improve the integrity and reliability of the entire translation drive assembly.

[0052] It should be emphasized that, in order to enhance the moving stability of the fire extinguishing agent storage tank 1, the first driving assembly 52 comprises two parallel arranged screw rods 525 and second gears 524, so that the slider 526 can be sleeved on the two screw rods 525 at the same time, and the first gear 523 is in meshing connection with the two second gears 524. In this way, the uniformity of the force distribution of the two screw rods 525 can be ensured, thereby effectively improving the moving balance stability of the slider 526. Of course, the number of the screw rods 525 is not limited in the present application, and when the capacity and weight of the fire extinguishing agent storage tank 1 are larger, three or more screw rods 525 can be arranged to improve the carrying capacity of the first driving assembly 52.

[0053] More specifically, in the present embodiment, as shown in Figure 8 , Figure 9 The second driving assembly 53 comprises a third gear 531 and a rack 532, wherein the rack 532 is fixedly connected to the housing 521 of the first driving assembly 52, and the third gear 531 is fixedly connected to the other end of the conduit 31 and is in meshing connection with the rack 532. When the fire extinguishing agent storage tank 1 moves linearly, the third gear 531 can continuously rotate with the conduit 31 relative to the sleeve ring 21, so that the first through hole 211 and the second through hole 311 are continuously converted between the aligned and misaligned states, thereby achieving the effect of intermittent injection of fire extinguishing agent, so that the distribution range of the fire extinguishing agent can be further expanded, and the fire extinguishing agent can be diffused to every corner in the distribution box 100, thereby improving the fire extinguishing effect.

[0054] Optionally, the distribution box 100 is also provided with a plurality of heat dissipation openings, which are helpful for heat dissipation of the distribution box 100, so as to cooperate with the automatic fire extinguishing device for power equipment to accelerate the fire extinguishing effect. Further, a dust baffle 110 is arranged at the heat dissipation opening, which plays a role of waterproof and dustproof, and protects the automatic fire extinguishing device for power equipment from being polluted by dust and sundries.

[0055] Embodiment Two

[0056] The present embodiment provides an automatic fire extinguishing device for power equipment, which is different from the first embodiment only in that, as shown in Figure 4 The opening adjusting structure comprises two opening adjusting plates 43, which are arranged one-to-one with the two injection pipes 33, so that when two of the injection openings 331 are blocked by the opening adjusting plates 43, the residual fire extinguishing agent in the fire extinguishing agent storage tank 1 can still be injected outwards from the other two injection openings 331, thereby saving cost and further improving the fire extinguishing effect.

[0057] Obviously, the above embodiments of the present application are merely example for clearly explaining the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An automatic fire extinguishing device for power equipment, characterized in that, include: Extinguishing agent storage tank (1), filled with extinguishing agent at a preset pressure; A first sealing structure (2) is provided inside the fire extinguishing agent storage tank (1) and has a first through hole (211) connected to the fire extinguishing agent storage tank (1). The second sealing structure (3) is movably disposed relative to the first sealing structure (2). The second sealing structure (3) includes a conduit (31), a manifold (32), and multiple injection pipes (33). One end of the conduit (31) is limited to pass through the extinguishing agent storage tank (1). The portion of the conduit (31) located inside the extinguishing agent storage tank (1) has a second through hole (311). The manifold (32) extends in a direction perpendicular to the axis of the conduit (31) and is fixedly connected to one end of the conduit (31). The end of the collection pipe (32) has an inner cavity communicating with the second through hole (311); a plurality of spray pipes (33) are fixedly connected to the collection pipe (32) in parallel at intervals, and the spray pipe (33) has a spray port (331), the spray port (331) communicating with the inner cavity and the second through hole (311), the spray port (331) communicating with the first through hole (211), and the spray port (331) is configured to spray the extinguishing agent to the outside of the extinguishing agent storage tank (1); An opening adjustment structure is reciprocally movable within the second sealing structure (3). The opening adjustment structure includes an elastic element (41), a connecting rod (42), and an opening adjustment plate (43). One end of the elastic element (41) is fixedly connected to the other end of the conduit (31), and the other end of the elastic element (41) is fixedly connected to the connecting rod (42). The connecting rod (42) includes a piston (421), a first rod (422), and a second rod (423). The piston (421) is slidably disposed within the conduit (31), and its two sides are respectively fixedly connected to the elastic element (41) and the first rod (422). The first rod (422) extends along the axial direction of the conduit (31). A push rod (4221) is fixedly provided at one end of the rod (422) away from the piston (421). The second rod (423) extends along the axial direction of the collecting pipe (32). One end of the second rod (423) is fixedly connected to the opening adjustment plate (43). The other end of the second rod (423) is fixedly provided with a transmission bar (4231). The transmission bar (4231) has an inclined sliding hole (42311). The push rod (4221) is slidably disposed in the sliding hole (42311). The opening adjustment plate (43) is movably fitted and covered on the spray port (331). The opening adjustment plate (43) can change the opening degree of the spray port (331) according to the pressure of the extinguishing agent. An automatic control drive structure is connected to the first sealing structure (2) or the second sealing structure (3) and can control the movement of the first sealing structure (2) or the second sealing structure (3) according to whether a fire signal is detected.

2. The automatic fire extinguishing device for power equipment according to claim 1, characterized in that, The number of the injection pipes (33) is greater than the number of the opening adjustment plates (43).

3. The automatic fire extinguishing device for power equipment according to claim 1, characterized in that, The first sealing structure (2) includes a collar (21) and a plurality of support frames (22). The collar (21) has a first through hole (211). The collar (21) is sleeved on the second sealing structure (3). The plurality of support frames (22) are fixed on the collar (21) circumferentially. The two ends of the support frames (22) abut against the inner sidewall of the collar (21) and the fire extinguishing agent storage tank (1), respectively. The automatic control drive structure is connected to the second sealing structure (3).

4. The automatic fire extinguishing device for power equipment according to claim 1, characterized in that, The automatic control drive structure includes a sensor (51), a controller, a first drive component (52), and a second drive component (53). The sensor (51) is connected to the controller and is used to detect the fire signal. The controller is connected to the first drive component (52). The first drive component (52) is driven to the extinguishing agent storage tank (1) and the second drive component (53) so that the extinguishing agent storage tank (1) can move linearly in a preset direction. The second drive component (53) is driven to the first sealing structure (2) or the second sealing structure (3).

5. The automatic fire extinguishing device for power equipment according to claim 4, characterized in that, The first drive assembly (52) includes a rotary motor (522), a first gear (523), a second gear (524), a screw (525), and a slider (526). The rotary motor (522) is fixedly installed and connected to the controller. The output shaft of the rotary motor (522) is drivenly connected to the first gear (523). The first gear (523) is meshed with the second gear (524). The second gear (524) is fixedly connected to the screw (525). The screw (525) extends along the preset direction. The slider (526) is fixedly connected to the fire extinguishing agent storage tank (1) and has an internal thread section. The screw (525) passes through the slider (526) and is threadedly connected to the internal thread section.

6. The automatic fire extinguishing device for power equipment according to claim 5, characterized in that, The first drive assembly (52) includes two screws (525) arranged in parallel and a second gear (524), wherein the first gear (523) is simultaneously engaged with the two second gears (524).

7. The automatic fire extinguishing device for power equipment according to claim 4, characterized in that, The second drive assembly (53) includes a third gear (531) and a rack (532). The third gear (531) is fixed to the first sealing structure (2) or the second sealing structure (3) and meshes with the rack (532). The rack (532) is fixed and extends along the preset direction.

Images