Fire alarm device for power distribution cabinet

Abstract

The present invention belongs to the technical field of fire alarm devices, and specifically discloses a fire alarm device for a distribution cabinet, comprising a cabinet body, a controller is arranged on the top of the cabinet body, a buzzer is arranged on one side of the controller, and a fire prevention mechanism is arranged inside the cabinet body; the fire prevention mechanism comprises a ventilation component arranged inside the cabinet body, and an auxiliary component is arranged inside the ventilation component; by arranging the fire prevention mechanism, an alarm can be given in time when a fire occurs, and at the same time, with the cooperation of the ventilation component and the auxiliary component, the fire can be delayed or even extinguished, thereby gaining precious time for subsequent firefighting operations; when a fire occurs, carbon dioxide can be actively sprayed into the cabinet body and isolated from the outside air, thereby reducing the outside air from entering the cabinet body, thereby improving the delaying effect of carbon dioxide on the fire, thereby gaining precious time for firefighting operations and reducing the losses caused by the spread of the fire.

Description

Technical Field

[0001] The invention belongs to the technical field of fire alarm devices, and specifically discloses a fire alarm device for a power distribution cabinet. Background Art

[0002] At present, low-voltage distribution cabinets are equipped with certain protection functions, but they are basically protection functions against overload, short circuit, leakage, etc., and there is no pre-alarm function for electrical fires and the presence of flammable and explosive gases in the environment. By analyzing the electrical fires that have occurred, it can be found that fires rarely originate from electricity, and basically all originate from distribution cabinets. This is mainly because most fires are first caused by various electrical reasons, such as overload, short circuit or leakage. Therefore, when using distribution cabinets, alarm devices are generally required for warning, but traditional fire alarm devices can only alarm when a fire occurs, and subsequent firefighters are required to extinguish the fire. However, it takes a certain amount of time for firefighters to arrive at the fire site, and the fire will spread during this period of time. The existing devices cannot effectively slow down the spread of the fire. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to propose a fire alarm device for a distribution cabinet to solve the problem that in the prior art, it takes a certain amount of time for firefighters to arrive at the fire site, during which time the fire will spread, and the existing device cannot effectively slow down the spread of the fire.

[0004] To achieve the above object, the present invention provides a fire alarm device for a power distribution cabinet, comprising a cabinet, a controller is arranged on the top of the cabinet, a buzzer is arranged on one side of the controller, and a fire prevention mechanism is arranged inside the cabinet;

[0005] The fire prevention mechanism comprises a ventilation component arranged inside the cabinet, and an auxiliary component is arranged inside the ventilation component;

[0006] Among them, the ventilation component includes a mounting shell fixedly connected to the top wall of the cabinet, a positioning plate is arranged inside the mounting shell, and evenly distributed fans are arranged on the surface of the positioning plate. A guide plate is fixedly connected to one side of the positioning plate, and a detection cavity is formed between the side of the positioning plate close to the guide plate and the interior of the mounting shell, and an air inlet cavity is formed between the other side of the positioning plate and the interior of the mounting shell, and the inner bottom wall of the air inlet cavity is provided with evenly distributed air inlet grooves connected to the interior of the cabinet, and a smoke sensor is arranged inside the detection cavity.

[0007] In the above technical solution, preferably, the ventilation assembly also includes two connecting shells that are embedded and installed on one side of the cabinet, one of the connecting shells is connected to the cabinet, and the other connecting shell is connected to the detection cavity, and the surface of the connecting shell is provided with evenly distributed ventilation grooves.

[0008] In the above technical solution, preferably, a baffle is slidably connected to the inner wall of the connecting shell, a connecting rod is fixedly connected to the surface of the lower baffle, and the other end of the connecting rod is fixedly connected to the surface of another baffle.

[0009] In the above technical solution, preferably, the auxiliary component includes a storage shell fixedly connected to the top of the cabinet, the inner wall of the storage shell is fixedly connected with four guide rods, the inner wall of the storage shell is slidably connected with a partition plate, the partition plate is slidably connected to the surface of the guide rod, one side of the partition plate and the inner wall of the storage shell form a storage cavity, the other side of the partition plate and the inner wall of the storage shell form a recovery cavity, and the interior of the storage cavity is filled with carbon dioxide.

[0010] In the above technical solution, preferably, a first spring is fixedly connected to the surface of the partition plate, the other end of the first spring is fixedly connected to the inner wall of the recovery chamber, the bottom of the storage shell is provided with an inlet pipe which is evenly distributed and connected to the recovery chamber, the other end of the inlet pipe is connected to the detection chamber, the bottom of the storage shell is provided with a discharge pipe which is evenly distributed and connected to the temporary storage chamber, the other end of the discharge pipe is connected to a mounting pipe, a retaining ring is fixedly connected to the inner wall of the discharge pipe, and the surface of the mounting pipe is provided with evenly distributed spray holes.

[0011] In the above technical solution, preferably, the inner wall of the inlet tube is fixedly connected to a mounting plate, the bottom of the mounting plate is fixedly connected to a mounting rod, the surface of the mounting rod is slidably connected to a sealing ring, a second spring is fixedly connected between the sealing ring and the mounting plate, the surface of the sealing ring is in contact with the inner wall of the inlet tube, and a through groove is provided on the surface of the mounting rod.

[0012] In the above technical solution, preferably, the auxiliary component also includes a fixed shell fixedly connected to the inner wall of the cabinet, a collecting cavity is opened inside the fixed shell, an installation cavity connected to the collecting cavity is opened on the top of the fixed shell, the other end of the installation tube is connected to the installation cavity, a thermal conductive strip is fixedly connected to the inner bottom wall of the installation cavity, one end of the thermal conductive strip passes through the fixed shell and is fixedly connected to a thermal conductive plate, and evenly distributed through holes are opened on the surface of the thermal conductive strip.

[0013] In the above technical solution, preferably, the top of the thermally conductive strip is fixedly connected to a thermally conductive rod located inside the installation cavity, the surface of the thermally conductive rod is slidably connected to a slide plate, the top of the slide plate is fixedly connected to an adjusting tube, the upper end of the adjusting tube is fixedly connected to an adjusting rod, and the upper end of the adjusting rod extends to the inner side of the retaining ring.

[0014] In the above technical solution, preferably, a third spring is fixedly connected between the bottom of the slide plate and the heat-conducting strip, and the interior of the installation cavity is filled with a filler, and the filler is a polyethylene wax material component.

[0015] In the above technical solution, preferably, a fixing plate is fixedly connected between two adjacent slides, an adjusting plate is fixedly connected to the surface of one of the slides, and the other end of the adjusting plate is fixedly connected to the surface of the baffle.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up a fire prevention mechanism, an alarm can be sounded in time when a fire occurs. At the same time, with the cooperation of the ventilation components and auxiliary components, the fire can be delayed or even extinguished, which buys valuable time for subsequent firefighting operations. When a fire occurs, carbon dioxide can be actively sprayed into the cabinet to isolate the outside air, reducing the entry of outside air into the cabinet, improving the effect of carbon dioxide in delaying the fire, buying valuable time for firefighting operations, and reducing the losses caused by the spread of fire.

[0018] By setting up ventilation components, good heat dissipation and cooling inside the cabinet can be maintained under normal conditions, the efficiency of air exchange inside the cabinet can be improved, and fires caused by heat accumulation can be reduced. At the same time, the exhaust gas can be centrally diverted so that the smoke sensor can better detect the exhaust gas, thereby improving the detection effect of the smoke sensor, enabling it to detect the fire in time and issue an alarm, further buying valuable time for firefighting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 A schematic diagram of the distribution of the ventilation components and auxiliary components of the present invention;

[0021] Figure 3 It is a schematic diagram of the connection between the mounting pipe and the fixing shell of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of middle;

[0023] Figure 5 for Figure 3 Enlarged view of middle B;

[0024] Figure 6 This is a schematic diagram of the distribution of the inlet pipe and the outlet pipe of the present invention;

[0025] Figure 7 It is a schematic diagram of the distribution of the mounting plate and the sealing ring of the present invention.

[0026] In the figure: 1, cabinet; 101, controller; 102, buzzer; 2, fire prevention mechanism; 21, ventilation assembly; 2101, connecting shell; 2102, baffle; 2103, ventilation slot; 2104, connecting rod; 2105, mounting shell; 2106, fan; 2107, smoke sensor; 2108, guide plate; 22, auxiliary assembly; 2201, storage shell; 2202, guide rod; 2203, partition plate; 2204, first spring; 2205, introduction pipe; 2 206, discharge pipe; 2207, mounting rod; 2208, mounting plate; 2209, through groove; 2210, second spring; 2211, sealing ring; 2212, retaining ring; 2213, adjusting rod; 2214, mounting pipe; 2215, fixing shell; 2216, heat-conducting rod; 2217, third spring; 2218, filler; 2219, adjusting pipe; 2220, slide plate; 2221, heat-conducting strip; 2222, collecting chamber; 2223, through hole; 2224, heat-conducting plate. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] like Figure 1-Figure 7 The fire alarm device for a power distribution cabinet shown in the figure comprises a cabinet body 1, a controller 101 is arranged on the top of the cabinet body 1, a buzzer 102 is arranged on one side of the controller 101, and a fire prevention mechanism 2 is arranged inside the cabinet body 1;

[0030] The fire prevention mechanism 2 includes a ventilation component 21 disposed inside the cabinet 1, and an auxiliary component 22 is disposed inside the ventilation component 21;

[0031] Among them, the ventilation component 21 includes a mounting shell 2105 fixedly connected to the inner top wall of the cabinet 1, a positioning plate is arranged inside the mounting shell 2105, and evenly distributed fans 2106 are arranged on the surface of the positioning plate. A guide plate 2108 is fixedly connected to one side of the positioning plate, and a detection cavity is formed between the side of the positioning plate close to the guide plate 2108 and the interior of the mounting shell 2105, and an air inlet cavity is formed between the other side of the positioning plate and the interior of the mounting shell 2105, and the inner bottom wall of the air inlet cavity is provided with evenly distributed air inlet grooves connected to the interior of the cabinet 1, and a smoke sensor 2107 is arranged inside the detection cavity.

[0032] By starting the fan 2106, the air inside the cabinet 1 can be driven into the air inlet cavity through the air inlet slot, and the air is guided to pass through the positioning plate by the fan 2106, and the air is guided under the action of the guide plate 2108. If a fire occurs inside the cabinet 1, the smoke will be more concentrated due to the action of the guide plate 2108, so that the smoke sensor 2107 can better detect the smoke. After detecting the smoke, the signal is transmitted to the controller 101, and the controller 101 then starts the buzzer 102 to alarm and prompt the occurrence of a fire.

[0033] like Figure 1-Figure 7 As shown, the ventilation assembly 21 also includes two connecting shells 2101 that are embedded and installed on one side of the cabinet 1, one connecting shell 2101 is connected to the cabinet 1, and the other connecting shell 2101 is connected to the detection cavity, and the surface of the connecting shell 2101 is provided with evenly distributed ventilation grooves 2103.

[0034] The inner wall of the connecting shell 2101 is slidably connected with a baffle 2102 , the surface of the lower baffle 2102 is fixedly connected with a connecting rod 2104 , and the other end of the connecting rod 2104 is fixedly connected to the surface of another baffle 2102 .

[0035] Under the action of the fan 2106, the outside air can be introduced into the interior of the cabinet 1, accelerating the cabinet 1 and introducing it into the interior of the air inlet cavity through the air inlet slot. In this process, the heat generated during the working process inside the cabinet 1 can be taken away, reducing the fire caused by the heat accumulation that cannot be dissipated in time, and improving the fire prevention effect.

[0036] The baffle 2102 is normally misaligned with the ventilation slot 2103 . The setting of the connecting rod 2104 can synchronously adjust the position of the baffle 2102 , and the connecting rod 2104 can drive the two baffles 2102 to move synchronously to block the ventilation slot 2103 .

[0037] like Figure 1-Figure 7 As shown, the auxiliary component 22 includes a storage shell 2201 fixedly connected to the top of the cabinet 1, the inner wall of the storage shell 2201 is fixedly connected with four guide rods 2202, the inner wall of the storage shell 2201 is slidably connected with a partition plate 2203, the partition plate 2203 is slidably connected to the surface of the guide rod 2202, one side of the partition plate 2203 and the inner wall of the storage shell 2201 form a storage cavity, the other side of the partition plate 2203 and the inner wall of the storage shell 2201 form a recovery cavity, and the interior of the storage cavity is filled with carbon dioxide.

[0038] A first spring 2204 is fixedly connected to the surface of the partition plate 2203, and the other end of the first spring 2204 is fixedly connected to the inner wall of the recovery chamber. An inlet pipe 2205 which is evenly distributed and connected to the recovery chamber is provided at the bottom of the storage shell 2201, and the other end of the inlet pipe 2205 is connected to the detection chamber. An exhaust pipe 2206 which is evenly distributed and connected to the temporary storage chamber is provided at the bottom of the storage shell 2201, and the other end of the exhaust pipe 2206 is connected to a mounting pipe 2214. A retaining ring 2212 is fixedly connected to the inner wall of the exhaust pipe 2206, and a surface of the mounting pipe 2214 is provided with evenly distributed spray holes.

[0039] The inner wall of the introduction tube 2205 is fixedly connected with a mounting plate 2208, the bottom of the mounting plate 2208 is fixedly connected with a mounting rod 2207, the surface of the mounting rod 2207 is slidably connected with a sealing ring 2211, a second spring 2210 is fixedly connected between the sealing ring 2211 and the mounting plate 2208, the surface of the sealing ring 2211 contacts the inner wall of the introduction tube 2205, and the surface of the mounting rod 2207 is provided with a through groove 2209.

[0040] The first spring 2204 can push the partition plate 2203 to quickly discharge carbon dioxide when carbon dioxide is discharged through the discharge pipe 2206. In the attached figure, the first spring 2204 is in a compressed state due to the pressure of the filled carbon dioxide. The second spring 2210 under normal conditions can drive the sealing ring 2211 to be misaligned with the through groove 2209, thereby preventing the normally discharged gas from being introduced into the interior of the recovery chamber through the through groove 2209.

[0041] When a fire occurs, the two baffles 2102 move synchronously to block the ventilation slot 2103. At this time, the gas introduced into the detection chamber cannot be discharged normally, thereby pushing the sealing ring 2211 to overcome the elastic force of the second spring 2210, so that it moves up along the surface of the mounting rod 2207 until it moves to the middle of the through slot 2209. At this time, the gas with smoke can be introduced into the internal storage of the recovery chamber through the through slot 2209 and the inlet pipe 2205, reducing the impact of the combustion on the surrounding environment when a fire occurs. At the same time, when a fire occurs, the exhausted carbon dioxide can quickly diffuse to the interior of the cabinet 1 through the nozzle on the mounting pipe 2214, reducing the oxygen content inside the cabinet 1, achieving the effect of delaying the fire or even extinguishing the fire, and the baffle 2102 blocking the ventilation slot 2103 can prevent external oxygen from entering the interior of the cabinet 1, thereby improving the delaying effect of carbon dioxide on the fire.

[0042] like Figure 1-Figure 7As shown, the auxiliary component 22 also includes a fixed shell 2215 fixedly connected to the inner wall of the cabinet 1, a collecting chamber 2222 is opened inside the fixed shell 2215, a mounting chamber connected to the collecting chamber 2222 is opened on the top of the fixed shell 2215, the other end of the mounting tube 2214 is connected to the mounting chamber, a thermal conductive strip 2221 is fixedly connected to the inner bottom wall of the mounting chamber, one end of the thermal conductive strip 2221 passes through the fixed shell 2215 and is fixedly connected to the thermal conductive plate 2224, and a surface of the thermal conductive strip 2221 is provided with evenly distributed through holes 2223.

[0043] The top of the thermally conductive strip 2221 is fixedly connected to a thermally conductive rod 2216 located inside the mounting cavity, the surface of the thermally conductive rod 2216 is slidably connected to a slide plate 2220, the top of the slide plate 2220 is fixedly connected to an adjusting tube 2219, the upper end of the adjusting tube 2219 is fixedly connected to an adjusting rod 2213, and the upper end of the adjusting rod 2213 extends to the inner side of the retaining ring 2212.

[0044] A third spring 2217 is fixedly connected between the bottom of the slide plate 2220 and the heat-conducting strip 2221 , and the interior of the installation cavity is filled with a filler 2218 , which is a polyethylene wax material component.

[0045] A fixing plate is fixedly connected between two adjacent slide plates 2220 , an adjusting plate is fixedly connected to the surface of one of the slide plates 2220 , and the other end of the adjusting plate is fixedly connected to the surface of the baffle 2102 .

[0046] Under normal circumstances, the third spring 2217 can be positioned due to the restriction of the filler 2218, and the third spring 2217 is in a stretched state under normal circumstances, and the adjustment rod 2213 can normally block the inner side of the baffle ring 2212 to prevent carbon dioxide leakage.

[0047] When a fire occurs, heat can be quickly transferred to the surface of the heat-conducting rod 2216 through the heat-conducting plate 2224 and the heat-conducting strip 2221. As the temperature of the surface of the heat-conducting rod 2216 rises, the filler 2218 of the polyethylene wax material component can be heated, so that the filler 2218 melts and drips into the interior of the collecting chamber 2222 through the through hole 2223. At the same time, the melting of the filler 2218 releases the limitation on the third spring 2217, so that the third spring 2217 can move synchronously with the slide plate 2220 and the adjustment plate. In this process, it can drive the baffle 2102 connected thereto to move synchronously and block the ventilation slot 2103, so that under the action of the connecting rod 2104, it can drive another baffle 2102 to move synchronously to block the ventilation slot 2103 of the other connecting shell 2101, so as to prevent outside air from continuing to enter the interior of the cabinet 1.

[0048] And as the slide plate 2220 moves downward under the action of the third spring 2217, it can drive the adjusting tube 2219 and the adjusting rod 2213 to move downward synchronously, so that the adjusting rod 2213 no longer blocks the inner side of the retaining ring 2212, and the stored carbon dioxide can be discharged into the interior of the cabinet 1 under the action of the mounting tube 2214 and the spray hole.

[0049] Working principle: Under the action of the fan 2106, the outside air can be introduced into the interior of the cabinet 1, accelerating the air flow inside the cabinet 1, and guiding the air into the interior of the air inlet cavity through the air inlet slot. In this process, the heat generated during the working process inside the cabinet 1 can be taken away, reducing the fire caused by the heat accumulation that cannot be dissipated in time, and improving the fire prevention effect. When a fire occurs, the heat can be quickly transferred to the surface of the heat-conducting rod 2216 through the heat-conducting plate 2224 and the heat-conducting strip 2221. As the temperature of the surface of the heat-conducting rod 2216 rises, the filler 2218 of the polyethylene wax material component can be heated, so that the filler 2218 melts and drips into the interior of the collecting chamber 2222 through the through hole 2223. At the same time, due to the melting of the filler 2218, the limit of the third spring 2217 is released, so that the third spring 2217 can move the sliding plate 2220 and the adjusting plate synchronously. In this process, it can drive the baffle 2102 connected thereto to move synchronously and block the ventilation slot 2103, so that under the action of the connecting rod 2104 Drive another baffle 2102 to move synchronously to block the ventilation slot 2103 of another connecting shell 2101 to prevent outside air from continuing to enter the interior of the cabinet 1. At the same time, the smoke will be more concentrated due to the action of the guide plate 2108, so that the smoke sensor 2107 can better detect the smoke. After detecting the smoke, the signal is transmitted to the controller 101, and the controller 101 then starts the buzzer 102 to alarm and prompt the occurrence of a fire. The smoke cannot be discharged normally through the ventilation slot 2103, so that it can be introduced into the internal storage of the recovery chamber through the through slot 2209 and the introduction pipe 2205, reducing the impact of the combustion on the surrounding environment when a fire occurs. At the same time, when a fire occurs, the discharged carbon dioxide can quickly diffuse to the interior of the cabinet 1 through the nozzle on the installation pipe 2214, reducing the oxygen content in the cabinet 1, achieving the effect of delaying the fire or even extinguishing the fire, and the baffle 2102 blocking the ventilation slot 2103 can prevent outside oxygen from entering the interior of the cabinet 1, thereby improving the delaying effect of carbon dioxide on the fire.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A fire alarm device for a power distribution cabinet, comprising a cabinet body (1), characterized in that: A controller (101) is arranged on the top of the cabinet (1), a buzzer (102) is arranged on one side of the controller (101), and a fire prevention mechanism (2) is arranged inside the cabinet (1); The fire protection mechanism (2) comprises a ventilation component (21) arranged inside the cabinet (1), and an auxiliary component (22) is arranged inside the ventilation component (21); The ventilation assembly (21) comprises a mounting shell (2105) fixedly connected to the inner top wall of the cabinet (1), a positioning plate is arranged inside the mounting shell (2105), a fan (2106) is evenly distributed on the surface of the positioning plate, a guide plate (2108) is fixedly connected to one side of the positioning plate, a detection cavity is formed between a side of the positioning plate close to the guide plate (2108) and the inside of the mounting shell (2105), an air inlet cavity is formed between the other side of the positioning plate and the inside of the mounting shell (2105), and the inner bottom wall of the air inlet cavity is provided with evenly distributed air inlet grooves that are connected to the inside of the cabinet (1), and a smoke sensor (2107) is arranged inside the detection cavity; The ventilation assembly (21) further comprises two connection shells (2101) both embedded and installed on one side of the cabinet (1), wherein one of the connection shells (2101) is connected to the cabinet (1), and the other of the connection shells (2101) is connected to the detection cavity, and the surface of the connection shells (2101) is provided with evenly distributed ventilation slots (2103); The inner wall of the connecting shell (2101) is slidably connected to a baffle (2102), the surface of the lower baffle (2102) is fixedly connected to a connecting rod (2104), and the other end of the connecting rod (2104) is fixedly connected to the surface of another baffle (2102); The auxiliary component (22) comprises a storage shell (2201) fixedly connected to the top of the cabinet (1); the inner wall of the storage shell (2201) is fixedly connected to four guide rods (2202); the inner wall of the storage shell (2201) is slidably connected to a partition plate (2203); the partition plate (2203) is slidably connected to the surface of the guide rod (2202); one side of the partition plate (2203) and the inner wall of the storage shell (2201) form a storage cavity; the other side of the partition plate (2203) and the inner wall of the storage shell (2201) form a recovery cavity; the interior of the storage cavity is filled with carbon dioxide; A first spring (2204) is fixedly connected to the surface of the partition plate (2203), the other end of the first spring (2204) is fixedly connected to the inner wall of the recovery chamber, an evenly distributed inlet pipe (2205) connected to the recovery chamber is provided at the bottom of the storage shell (2201), the other end of the inlet pipe (2205) is connected to the detection chamber, and an evenly distributed discharge pipe (2206) connected to the temporary storage chamber is provided at the bottom of the storage shell (2201), the other end of the discharge pipe (2206) is connected to the installation pipe (2214), a retaining ring (2212) is fixedly connected to the inner wall of the discharge pipe (2206), and evenly distributed spray holes are opened on the surface of the installation pipe (2214); The inner wall of the introduction tube (2205) is fixedly connected to a mounting plate (2208), the bottom of the mounting plate (2208) is fixedly connected to a mounting rod (2207), the surface of the mounting rod (2207) is slidably connected to a sealing ring (2211), a second spring (2210) is fixedly connected between the sealing ring (2211) and the mounting plate (2208), the surface of the sealing ring (2211) is in contact with the inner wall of the introduction tube (2205), and a through groove (2209) is provided on the surface of the mounting rod (2207).

2. The fire alarm device for a power distribution cabinet according to claim 1, characterized in that: The auxiliary component (22) further comprises a fixed shell (2215) fixedly connected to the inner wall of the cabinet (1); a collecting chamber (2222) is provided inside the fixed shell (2215); a mounting chamber connected to the collecting chamber (2222) is provided on the top of the fixed shell (2215); the other end of the mounting tube (2214) is connected to the mounting chamber; a heat conducting strip (2221) is fixedly connected to the inner bottom wall of the mounting chamber; one end of the heat conducting strip (2221) passes through the fixed shell (2215) and is fixedly connected to a heat conducting plate (2224); and evenly distributed through holes (2223) are provided on the surface of the heat conducting strip (2221).

3. The fire alarm device for a power distribution cabinet according to claim 2, characterized in that: The top of the heat-conducting strip (2221) is fixedly connected to a heat-conducting rod (2216) located inside the installation cavity; the surface of the heat-conducting rod (2216) is slidably connected to a slide plate (2220); the top of the slide plate (2220) is fixedly connected to an adjustment tube (2219); the upper end of the adjustment tube (2219) is fixedly connected to an adjustment rod (2213); the upper end of the adjustment rod (2213) extends to the inner side of the retaining ring (2212).

4. The fire alarm device for a power distribution cabinet according to claim 3, characterized in that: A third spring (2217) is fixedly connected between the bottom of the slide plate (2220) and the heat-conducting strip (2221), and the interior of the installation cavity is filled with a filler (2218), wherein the filler (2218) is a polyethylene wax material component.

5. The fire alarm device for a power distribution cabinet according to claim 4, characterized in that: A fixing plate is fixedly connected between two adjacent slide plates (2220), an adjustment plate is fixedly connected to the surface of one of the slide plates (2220), and the other end of the adjustment plate is fixedly connected to the surface of the baffle plate (2102).

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