Reusable oil pan fire extinguishing demonstration device

Abstract

The invention discloses an oil pan fire extinguishing demonstration device capable of being repeatedly used, and relates to the technical field of fire fighting teaching aids, the oil pan fire extinguishing demonstration device comprises an operation table, a working box is fixedly installed at the bottom of the operation table, supporting bases are fixedly installed on the outer walls of the four corners of the bottom of the working box, and the oil pan fire extinguishing demonstration device further comprises a covering assembly, a fuel stove, a fire assembly, a detection assembly and a sealing mechanism; the covering assembly is installed at one end of the top of the operation table and used for covering the top of the operation table. The fuel oil stove is fixedly installed at the other end of the top of the operation table, a plurality of burners are arranged on the fuel oil stove, frying pans are placed on the burners, pan covers are placed on the tops of the frying pans, and the frying pans are correspondingly matched with the pan covers for use; the method has the advantages that resistance is generated in the covering process, feedback is triggered when covering is in place, and the authenticity and operation feedback of a simulation scene are improved.

Description

Technical Field

[0001] This application relates to the field of fire safety teaching aids technology, and in particular to a reusable oil pan fire extinguishing demonstration device. Background Technology

[0002] Oil pan fire extinguishing demonstration devices are key equipment in fire safety practical training systems. Their core value lies in simulating real oil pan fire scenarios to help catering professionals, the general public, and emergency responders master standardized fire extinguishing skills. Oil pan fires are a frequent fire hazard in catering operations and home cooking. Accidents caused by improper operation (such as using water to extinguish the fire or improperly sealing the lid) leading to the spread of the fire are common. Traditional training models that combine theoretical explanations with picture demonstrations fail to ensure learners truly grasp the core principle of "extinguishing fire by isolating the air" and are ill-equipped to respond to real-world emergencies. Therefore, oil pan fire extinguishing demonstration devices with scenario simulation capabilities have emerged. By recreating the visual and operational scenario of an oil pan fire, learners can practice repeatedly in a safe environment, gradually developing standardized operational muscle memory. This effectively reduces the risk of fires caused by operational errors in real-world scenarios, making it an essential piece of equipment for catering safety training, community fire prevention education, and corporate emergency drills.

[0003] Existing oil pan fire extinguishing demonstration devices typically guide learners through voice, light, or text prompts to complete the step-by-step action of closing the lid. However, while learners can easily complete the correct operation in simulated scenarios using only static reminders, their movements become distorted due to nervousness in real fire scenarios, resulting in poor realism and a lack of fire extinguishing-related feedback when closing the lid. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reusable oil pan fire extinguishing demonstration device. Its advantages include: realizing resistance during the closing process and triggering feedback when the lid is fully closed, thus improving the realism of the simulated scenario and operational feedback.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a reusable oil pan fire extinguishing demonstration device, comprising: an operating platform, a work box fixedly installed at the bottom of the operating platform, and support bases fixedly installed on the four outer walls of the bottom of the work box; further comprising: a cover assembly, a fuel stove, an ignition assembly, a detection assembly, and a sealing mechanism; the cover assembly is installed at one end of the top of the operating platform for covering the top of the operating platform; the fuel stove is fixedly installed at the other end of the top of the operating platform, and several burners are arranged on the fuel stove, each burner holding an oil pan, and each oil pan having a lid on top. Each of the aforementioned oil pans is used in conjunction with a number of the aforementioned lids; there are several sets of ignition components, each set of which is disposed within one of the oil pans, to simulate a fire scenario in the oil pans by means of the ignition components cooperating with the closing and opening actions of the lids; a detection component is disposed within the oil pans to monitor the pressure and water level within the oil pans by means of the detection component cooperating with the closing action of the lids; there are several sets of sealing mechanisms, which are equidistantly arranged and installed on the top of the inner walls around the oil pans to generate resistance when the lids are closed, guiding the lids to the sealed closing position.

[0006] Preferably, the sealing mechanism includes: a first sleeve, a first insert rod, a first buffer spring, a second sleeve, two second insert rods, two second buffer springs, a compression block, and a limiting block. One end of the outer wall of the first sleeve is fixedly installed to the top of one end of the inner wall of the oil pan. The first insert rod is inserted into the first sleeve. The second sleeve is fixedly installed to the other end of the outer wall of the first sleeve, and the second insert rod is inserted into the second sleeve. The second buffer spring is fixedly installed between the second insert rod and the first sleeve. The compression block is fixedly installed at one bottom end of the pan lid, corresponding to the first insert rod. The limiting block is fixedly installed at one bottom end of the pan lid, corresponding to the second insert rod. A sliding groove is provided at the end of the limiting block near the compression block. Both the compression block and the limiting block are arc-shaped. A trigger switch is fixedly installed on the bottom inner wall of the first sleeve.

[0007] Preferably, the ignition assembly includes: several rotary switches, an ultrasonic atomizer, several LED strips, lamp tubes, and several fans. The rotary switches are respectively fixedly installed on the top of the fuel stove. The ultrasonic atomizer is fixedly installed on the bottom inner wall of the oil pan via a bracket. The LED strips are respectively distributed on the top of the inner side of the oil pan, and the LED strips are located between the sealing mechanism and the ultrasonic atomizer. The lamp tubes are fixedly installed on the bottom inner wall of the oil pan. The fans are respectively distributed on the top of the inner side of the oil pan.

[0008] Preferably, the detection component includes a water level sensor and a pressure switch. The water level sensor is fixedly installed on the inner wall of one side of the oil pan, and the sensing end of the water level sensor is at the same height as the top of the ultrasonic atomizer. The pressure switch is fixedly installed on the top of the inner wall of the other side of the oil pan.

[0009] Preferably, both the first sleeve and the first insertion rod are arc-shaped, and the centers of the arcs of several first insertion rods are the same.

[0010] Preferably, a water collection trough is provided at the other end of the top of the operating table. The water collection trough is arranged in a ring shape and the bottom of the water collection trough is arranged in a single-slope drainage structure. An opening two is provided on the inner wall of the bottom of the water collection trough. A water pipe three is fixedly installed on the inner wall of the opening two. The end of the water pipe three away from the operating table is fixedly connected to an external water source.

[0011] Preferably, the bottom of the limiting block near the squeezing block is curved, and the top of the other insertion rod away from the buffer spring is curved.

[0012] Preferably, the cover assembly includes: a support base and a support plate 1. The support base is fixedly installed at one end of the top of the operating table. The bottom of the support plate 1 is hinged to the top of the support base. One end of the support plate 1 has a slot, which is used in conjunction with the fuel stove. The rotation trajectory of the support plate 1 covers an angle range of - degrees. One end of the outer wall of the work box has an installation opening, and both inner walls of the installation opening have doors.

[0013] Preferably, pressure sensors are fixedly installed on both sides of the top of the fuel stove, and the two pressure sensors are respectively located between the two oil pans and the fuel stove. The ultrasonic atomizer, the light strip and the lamp tube are electrically connected to the trigger switch and the pressure sensor, respectively.

[0014] Compared with the prior art, the beneficial effects of this application are as follows: (1) This invention proposes a reusable oil pan fire extinguishing demonstration device, which is equipped with an operating table, a work box, a support base, a cover assembly, a fuel stove, an ignition assembly, a detection assembly, a sleeve one, a plug one, a buffer spring one, a sleeve two, two plug twos, a buffer spring two, a squeezing block, and a limiting block. First, open the operating table cover assembly, check the correspondence between the fuel stove burner and the oil pan and lid, and prepare a fire blanket or wet cloth. Then, the target oil pan ignition assembly simulates ignition. The operator first turns off the fuel stove power to cut off the fire source, and then selects the extinguishing method: if using the lid to extinguish the fire, hold the lid and rotate it with one end in contact with the oil pan as the hinge point. During the process, the arc-shaped squeezing block squeezes the plug one inside the sleeve one. The movement of the arc-shaped limiting block pushes the second insertion rod to compress the second buffer spring. The operator adjusts the closing trajectory by using the resistance. After the first insertion rod touches the bottom of the first sleeve and triggers the switch, a two-second delay is initiated. The second buffer spring resets, allowing the second insertion rod to insert into the sliding groove of the limiting block to complete the sealing and locking. After a few seconds, the ignition component stops, and the detection component monitors the pressure and water level inside the pot. The operator judges whether the operation is qualified based on the data. If a fire blanket or wet cloth is used to extinguish the fire, it should be completely covered in the oil pot without being lifted immediately. After extinguishing the fire, the pot lid needs to be unlocked by rotating it horizontally in the opposite direction to disengage the limiting block from the second insertion rod, and then lifted off. The next simulation repeats the above steps, realizing the resistance generated during the closing process and the trigger feedback when the lid is in place, thus improving the realism of the simulation scenario and the operation feedback. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a perspective view highlighting the rotary switch in this invention.

[0017] Figure 3 For the present invention Figure 2 The 3D image highlighting point A is shown in the image.

[0018] Figure 4 For the present invention Figure 2 The 3D diagram highlighting point B is shown in the image.

[0019] Figure 5 For the present invention Figure 2 The 3D image highlighting point C is shown in the image.

[0020] Figure 6 For the present invention Figure 2 The 3D image highlighting point D is shown in the image.

[0021] Figure 7 This is a cross-sectional view of the sealing mechanism in this invention. Figure 8 This is a perspective view highlighting the pressure sensor in this invention.

[0022] In the diagram: 1. Control panel; 9. Work box; 10. Support base; 11. Support plate one; 13. Fuel stove; 14. Oil pan; 15. Pan lid; 201. Sleeve one; 202. Insert rod one; 203. Buffer spring one; 204. Sleeve two; 205. Insert rod two; 206. Buffer spring two; 207. Extrusion block; 208. Limit block; 401. Rotary switch; 402. Ultrasonic atomizer; 403. Light strip; 404. Water level sensor; 405. Pressure switch; 601. Water pipe three; 901. Support base; 902. Box door; 903. Lamp tube; 904. Trigger switch; 905. Pressure sensor; 906. Fan. Detailed Implementation

[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] One preferred embodiment of this application, such as Figures 1 to 8As shown, a reusable oil pan fire extinguishing demonstration device includes: an operating platform 1, a work box 9 fixedly installed at the bottom of the operating platform 1, and support bases 10 fixedly installed on the four outer walls of the bottom of the work box 9; it also includes: a cover assembly, a fuel stove 13, an ignition assembly, a detection assembly, and a sealing mechanism; the cover assembly is installed at one end of the top of the operating platform 1 for covering the top of the operating platform 1; the fuel stove 13 is fixedly installed at the other end of the top of the operating platform 1, and several burners are arranged on the fuel stove 13, with an oil pan 14 placed on each burner. Each oil pan 14 is topped with a lid 15, and several oil pans 14 are used in conjunction with several lids 15. Several sets of ignition components are installed inside several oil pans 14 to simulate a fire scenario by coordinating the opening and closing of the lids 15. Detection components are installed inside the oil pans 14 to monitor the pressure and water level within the oil pans 14 by coordinating the opening and closing of the lids 15. Several sets of sealing mechanisms are equidistantly arranged around the oil pans 14. The top of the inner wall is designed to provide resistance when the lid 15 is closed, guiding the lid 15 to the sealed position. The sealing mechanism includes: sleeve 1 201, insert rod 1 202, buffer spring 1 203, sleeve 2 204, two insert rods 205, buffer spring 206, pressing block 207, and limiting block 208. One end of the outer wall of sleeve 1 201 is fixedly installed on the top of one end of the inner wall of the oil pan 14. Insert rod 1 202 is inserted into sleeve 1 201. Sleeve 2 204 is fixedly installed on the other end of the outer wall of sleeve 1 201. Insert rod 205... 05 is inserted into sleeve 204. Buffer spring 206 is fixedly installed between insert rod 205 and sleeve 201. Extrusion block 207 is fixedly installed at one bottom end of pot lid 15. Extrusion block 207 is correspondingly set with insert rod 202. Limiting block 208 is fixedly installed at one bottom end of pot lid 15. Limiting block 208 is correspondingly set with insert rod 205. A sliding groove is opened at the end of limiting block 208 near extrusion block 207. Both extrusion block 207 and limiting block 208 are arc-shaped. Trigger switch 904 is fixedly installed on the inner wall of the bottom of sleeve 201.

[0027] First, open the lid assembly on top of the worktable 1 to avoid obstructing the operating area of ​​the fuel stove 13. Verify the one-to-one correspondence between the burners on the fuel stove 13 and the oil pans 14 and lids 15, ensuring that each oil pan 14 is matched with a suitable lid 15. Prepare a fire blanket or damp cloth. Next, activate the ignition assembly of the corresponding target oil pan 14 to simulate an oil pan fire. After observing the fire, the operator should first cut off the heat source and shut off the power to the fuel stove 13 to prevent the fire from spreading. Then, choose the appropriate extinguishing method. If choosing lid extinguishing, the operator holds the lid 15 so that one end contacts the edge of the oil pan 14 to form a hinge point. Slowly rotate the lid around this hinge point. In the process, the arc-shaped pressing block 207 at the bottom of the pot lid 15 first contacts the top of the insert rod 202, and continues to press the insert rod 202 as it rotates, causing it to move axially within the sleeve 201. Simultaneously, the arc-shaped limiting block 208 at the bottom of the pot lid 15 gradually approaches the two insert rods 205, pushing them towards the sleeve 201, thereby compressing the buffer spring 206. The operator can sense whether the lid engagement trajectory is correct through the resistance provided by the buffer spring and adjust the action accordingly. When the insert rod 202 moves down to contact the trigger switch 904 at the bottom inner wall of the sleeve 201 under continuous pressing, the trigger switch 904 immediately activates. After a 5-second delay, the buffer spring 206 releases its elastic potential energy, pushing the insert rod 205 back to its original position and precisely inserting it into the sliding groove of the limit block 208, thus sealing and locking the lid 15 and ensuring a seamless connection between the lid and the oil pan. After the 5-second delay, the ignition component automatically and gradually stops working. At this time, the detection component starts, monitoring the pressure and water level inside the oil pan 14 in real time. The monitoring data is transmitted, and the operator can check the pressure and water level to determine whether the lid sealing effect and the operation are up to standard. If a fire blanket or wet cloth is selected... To extinguish the fire, the operator takes out a prepared fire blanket or wet cloth and quickly covers the oil pan 14 completely, ensuring a seamless cover. After covering, the cover is not immediately lifted. Once the fire extinguishing simulation is complete, if it is necessary to unlock the lid, rotate the lid 15 horizontally in the opposite direction to disengage the sliding groove of the limit block 208 from the insert rod 205, and then lift the lid 15 upwards to remove it. To perform the next set of simulation operations, repeat all the above steps. This achieves resistance during the closing process and triggers feedback when the lid is closed, improving the realism of the simulation scenario and the operational feedback.

[0028] Further reference Figures 1-3The ignition assembly includes: several rotary switches 401, an ultrasonic atomizer 402, several light strips 403, lamp tubes 903, and several fans 906. The rotary switches 401 are respectively fixedly installed on the top of the fuel stove 13. The ultrasonic atomizer 402 is fixedly installed on the bottom inner wall of the oil pan 14 by a bracket. The light strips 403 are respectively distributed on the top of the inner side of the oil pan 14. The light strips 403 are located between the sealing mechanism and the ultrasonic atomizer 402. The lamp tubes 903 are fixedly installed on the bottom inner wall of the oil pan 14. The fans 906 are respectively distributed on the top of the inner side of the oil pan 14.

[0029] First, the operator manually adds water to the target oil pan 14, observing the water level line on one side of the inner wall of the oil pan 14 during the process. The operator marks the minimum and maximum water level lines, ensuring that the added water does not exceed the minimum water level line but not the maximum water level line, providing the basic conditions for the ultrasonic atomizer 402 to operate. Next, the operator locates the rotary switch 401 corresponding to the oil pan 14 and rotates it to activate the flame at the bottom of the oil pan 14. Simultaneously, the ultrasonic atomizer 402, several LED strips 403, lamp tubes 903, and several fans 906 within the oil pan 14 are activated. The ultrasonic atomizer 402 can be an atomizer with integrated lighting, allowing for different lighting effects to be used at multiple locations within the oil pan 14 to simulate the dynamic effect of the simulated flame combustion, making it more realistic and closer to the real effect. After the atomizer 402 is activated, it generates mist using the water level at the bottom. Several fans 906 then activate and blow the mist generated by the atomizer towards the center and lower part of the oil pan 14, specifically towards the light strip 403 and lamp tube 903. At this time, the light strip 403 and lamp tube 903 light up synchronously, and the light shines on the mist blown by the fans 906, giving the mist a flame-like color. As the mist drifts with the airflow of the fans 906, it presents a dynamic effect like burning flames, completing the fire simulation. When it is time to end the fire simulation, the ultrasonic atomizer 402, light strip 403, lamp tube 903, and fans 906 are turned off. The mist gradually dissipates and the light goes out, thus completing one cycle of the fire simulation. Several fans 906 and several light strips 403 are distributed on the top of the inner side of the oil pan 14, which makes the flame effect more uniform and more realistic.

[0030] Further reference Figure 2 , Figure 4 and Figure 6 The detection components include a water level sensor 404 and a pressure switch 405. The water level sensor 404 is fixedly installed on the inner wall of one side of the oil pan 14. The sensing end of the water level sensor 404 is at the same height as the top of the ultrasonic atomizer 402. The pressure switch 405 is fixedly installed on the top of the inner wall of the other side of the oil pan 14.

[0031] After the fire ignition component is activated, during the fire extinguishing cover closing operation and synchronous water spraying, the water level sensor 404 continuously monitors whether the water level in the oil pan 14 is maintained at a height that matches the ultrasonic atomizer 402, so as to avoid the water level being too low and affecting the atomization simulation effect. Meanwhile, the pressure switch 405 is in a ready-to-trigger state. When the lid 15 is completely closed and sealed by the sealing mechanism, the pressure switch 405 senses the pressure change inside the oil pan 14 caused by the sealing.

[0032] Further reference Figure 7 Both the sleeve 201 and the insert rod 202 are arc-shaped, and the center of the arc of several insert rods 202 is the same center.

[0033] During the fire extinguishing and closing operation, the operator holds the pot lid 15 so that one side first contacts the opening of the oil pan 14 to form a hinge point. Then, the operator rotates the pot lid 15 around this hinge point to close it. During this process, because both the sleeve 201 and the insert rod 202 are arc-shaped and the centers of the arcs of several insert rods 202 are the same as the hinge point, the pressing block 207 contacts the insert rod 202 and generates pressure, causing the insert rod 202 to slide and retract along the arc-shaped sleeve 201. As the pot lid 15 continues to rotate around the hinge point... As the insertion rod 201 contracts within the sleeve 202, it gradually increases its contraction, providing resistance for the lid 15 to close. Simultaneously, it guides the lid 15 to always move along the correct arc-shaped trajectory. This is the standard procedure for closing a burning oil pan 14. It effectively closes the pan while preventing smoke and splashed oil droplets from posing a danger to the operator. Until the lid 15 is fully closed, the insertion rod 202 reaches its maximum contraction state within the sleeve 201, working in conjunction with the sealing mechanism to seal the oil pan 14, thus completing the entire arc-shaped rotation closing operation.

[0034] Further reference Figure 2 A water collection trough is provided at the other end of the top of the operating table 1. The water collection trough is arranged in a ring shape and the bottom of the water collection trough is arranged in a single-slope drainage structure. An opening two is provided on the inner wall of the bottom of the water collection trough. A water pipe three 601 is fixedly installed on the inner wall of the circumference of the opening two. The end of the water pipe three 601 away from the operating table 1 is fixedly connected to an external water source.

[0035] The ignition component is activated to simulate a fire in the oil pan 14. The operator observes the simulated fire and prepares for subsequent fire extinguishing operations. Then, the operator holds the lid 15 of the corresponding oil pan 14 and closes it. During the closing process, some water splashes into the oil pan 14 and some splashes onto the surface of the worktable 1 or the area near the operator. The water splashed onto the worktable 1 flows along the surface to the annular water collection tank. The water flowing into the annular water collection tank is automatically collected to the lowest point in the tank due to the guidance of the single-slope drainage structure at the bottom of the tank, realizing water recovery to avoid the worktable 1 from being filled with splashed water and reducing water waste.

[0036] Further reference Figure 7 The bottom of the limiting block 208 near the pressing block 207 is curved, and the top of the other insert rod 205 away from the buffer spring 206 is curved.

[0037] During the fire extinguishing and closing operation, when the operator holds the pot lid 15 and rotates it around the hinge point, the pressing block 207 at the bottom of the pot lid 15 contacts the first insertion rod 202 and pushes it to slide inside the first sleeve 201. As the pot lid 15 continues to rotate, the limiting block 208 at the bottom of the pot lid 15 gradually approaches the other insertion rod 205. Since the bottom of the limiting block 208 near the pressing block 207 is curved, and the top of the second insertion rod 205 away from the second buffer spring 206 is also curved, the two curved surfaces first contact and produce a smooth sliding contact to avoid jamming. As the pot lid 15 continues to rotate, the curved surface of the limiting block 208 will apply a lateral pushing force to the curved surface of the second insertion rod 205, pushing the second insertion rod 205 to move into the second sleeve 204, thereby compressing the second buffer spring 206 inside the second sleeve 204.

[0038] Further reference Figures 1-2 The cover assembly includes a support base 901 and a support plate 11. The support base 901 is fixedly installed on one end of the top of the worktable 1. The bottom of the support plate 11 is hinged to the top of the support base 901. One end of the support plate 11 has a slot, which is used in conjunction with the fuel stove 13. The rotation trajectory of the support plate 11 covers an angle range of 0-120 degrees. One end of the outer wall of the work box 9 has an installation opening, and both sides of the inner wall of the installation opening have doors 902.

[0039] When using this device, rotate the support plate 110-120 degrees to the fully open position. At this time, the support plate 11 will not obstruct the operating area of ​​the fuel stove 13, nor will it hinder the normal use of the top of the worktable 1. When the device is finished and no operation is required, rotate the support plate 11 in the opposite direction so that it moves towards the top of the worktable 1 until it is completely covered on the top of the worktable 1. Its design features achieve a tight seal, preventing external debris from falling in. If you need to store the oil pan 14 for carrying, first open the door 902 on the inner wall of both sides of the outer wall of the work box 9, place the oil pan 14 steadily into the work box 9, and close the door 902 on both sides after confirming that it is placed securely. The overall structure of the work box 9 allows for convenient carrying of the device.

[0040] Further reference Figure 8 Pressure sensors 905 are fixedly installed on both sides of the top of the fuel stove 13. The two pressure sensors 905 are respectively set between the two oil pans 14 and the fuel stove 13. The ultrasonic atomizer 402, the light strip 403 and the lamp tube 903 are electrically connected to the trigger switch 904 and the pressure sensor 905 respectively.

[0041] First, manually add water to the oil pan 14 to the minimum water level line. Then, activate the ignition assembly. At this time, the ultrasonic atomizer 402 generates a basic concentration of mist, the fan 906 blows the mist, and the light strip 403 and lamp tube 903 light up to form a basic flame simulation scene. When the operator simulates an incorrect operation by adding water to the oil pan 14 to extinguish the fire, the increase in water volume in the oil pan 14 causes the overall weight to rise. The pressure sensors 905 on both sides of the top of the fuel stove 13 detect the weight change in real time and generate signals. Since the ultrasonic atomizer 402, light strip 403, and lamp tube 903 are all connected to the pressure sensors... Electrically connected at 905, pressure sensor 905 transmits signals to these components, triggering the brightness of light strip 403 and lamp tube 903 to simulate increased flame temperature and firepower. Simultaneously, the atomization concentration of ultrasonic atomizer 402 increases, and in conjunction with fan 906, the high-concentration mist disperses more violently, simulating the scenario where water vaporizes at high temperatures, producing a large amount of steam and oil mist, leading to intensified fire splashing. After the erroneous operation simulation is completed, the operator performs the correct fire extinguishing, such as covering the oil pan 14 with a lid, causing the plug 202 to contact trigger switch 904 to start a 5-second delay. After the delay, ultrasonic atomizer 402, light strip 403, and lamp tube 903 gradually stop working, and pressure sensor 905 returns to its initial value. If another demonstration is needed, drain the excess water from oil pan 14 to the minimum water level and repeat the above steps.

[0042] Working principle: When using this oil pan fire extinguishing demonstration device, first rotate the support plate 11 of the cover assembly along the support base 901 to the fully open state to avoid obstructing the operating area of ​​the oil stove 13. Then, check the one-to-one correspondence between the burners on the oil stove 13 and the oil pans 14 and lids 15 to ensure that each set of oil pans 14 is matched with a suitable lid 15. Prepare a fire blanket or wet cloth. Then, manually add water to the target oil pan 14. During the water addition process, observe the water level line on one side of the inner wall of the oil pan 14 to ensure that the added water level does not exceed the minimum water level line and does not exceed the maximum water level line, providing the basic conditions for the ultrasonic atomizer 402 to work. Then, find the rotary switch 401 corresponding to the target oil pan 14 and rotate the rotary switch 401 to simultaneously... The ultrasonic atomizer 402, LED strip 403, LED tube 903, and several fans 906 inside the oil pan 14 are activated. After the ultrasonic atomizer 402 is activated, it generates mist using the water level inside the oil pan 14. The fans 906 then blow the mist towards the center of the oil pan 14 and towards the LED strip 403 and LED tube 903. The LED strip 403 and LED tube 903 light up synchronously, illuminating the mist blown by the fans 906, giving it a flame-like color. The mist drifts with the airflow of the fans 906, creating a dynamic effect of burning flames, thus simulating a fire. After observing the simulated fire, the operator first turns off the power to the fuel stove 13 to cut off the fire source and prevent the fire from spreading. Then, the operator chooses the appropriate extinguishing method: if choosing to extinguish the fire with the lid, the operator holds... The lid 15 of the oil pan 14 is positioned so that one end of the lid 15 first contacts the edge of the oil pan 14 to form a hinge point. The lid is then slowly rotated around this hinge point to close. During this process, the arc-shaped pressing block 207 at the bottom of the lid 15 first contacts the top of the insert rod 202, and continues to press the insert rod 202 as it rotates, causing it to slide axially within the arc-shaped sleeve 201. Simultaneously, the arc-shaped limiting block 208 at the bottom of the lid 15 gradually approaches the two insert rods 205. Since the bottom of the limiting block 208 near the pressing block 207 is curved, and the top of the insert rod 205 away from the buffer spring 206 is also curved, after the two curved surfaces smoothly contact each other, the limiting block 208 pushes the insert rod 205 towards the sleeve 201, thereby compressing the buffer spring 206. 206. The operator senses the correctness of the lid's closing trajectory through the resistance provided by the second buffer spring 206 and adjusts the action accordingly. As the lid 15 continues to rotate around the hinge point, the amount of contraction of the first insertion rod 202 within the first sleeve 201 gradually increases until the first insertion rod 202 moves down under continuous compression and contacts the trigger switch 904 at the bottom inner wall of the first sleeve 201. The trigger switch 904 immediately starts a 5-second delay timer. Subsequently, the second buffer spring 206 releases its elastic potential energy, pushing the second insertion rod 205 to reset and precisely insert into the sliding groove of the limit block 208, completing the sealing and locking of the lid 15 and ensuring a seamless connection between the lid 15 and the oil pan 14. If the operator simulates an incorrect operation by adding water to the oil pan 14 to extinguish the fire, the increased water volume in the oil pan 14 will cause the overall weight to rise.Pressure sensors 905 on both sides of the top of the fuel stove 13 detect weight changes in real time and generate signals. Since the ultrasonic atomizer 402, light strip 403, and lamp tube 903 are electrically connected to the pressure sensor 905, the pressure sensor 905 transmits signals to these components, triggering the light strip 403 and lamp tube 903 to increase their brightness to simulate increased flame temperature and stronger firepower. At the same time, the atomization concentration of the ultrasonic atomizer 402 increases, and the fan 906 makes the high-concentration mist disperse more violently, simulating the scenario where water vaporizes at high temperature to produce a large amount of steam and oil mist, causing the fire to splatter more intensely. After the pot lid 15 is properly closed, the detection component starts to work. The water level sensor 404 is fixedly installed on the inner wall of one side of the oil pan 14. The sensing end is at the same height as the top of the ultrasonic atomizer 402, and it constantly monitors whether the water level in the oil pan 14 is maintained at the height matched by the ultrasonic atomizer 402 to avoid the water level being too low and affecting the atomization simulation effect. The pressure switch 405 senses the pressure change caused by the sealing inside the oil pan 14, and transmits the monitoring data. The operator can judge whether the sealing effect of the lid 15 and the operation are qualified by checking the pressure value and water level status. If water splashes onto the surface of the operating table 1 during the lid closing process, the splashed water flows along the surface of the operating table 1 to the annular water collection point at the other end of the top of the operating table 1. Water flowing into the collection tank is automatically collected to the lowest point of the tank due to the single-slope drainage structure at the bottom. It is then discharged and recycled through opening two on the inner wall of the bottom of the collection tank and water pipe three 601 fixedly installed on the inner circumference of opening two. This prevents water from splashing onto the operating table 1 and reduces water waste. After a 5-second delay, the ultrasonic atomizer 402, light strip 403, lamp tube 903, and fan 906 of the ignition assembly automatically and gradually stop working. To unlock the pot lid 15, rotate the pot lid 15 horizontally in the opposite direction to disengage the sliding groove of the limit block 208 from the insertion rod two 205, then lift the pot lid 15 upwards to remove it. When the equipment is no longer in use, it is ready for use. Rotate the support plate 11 in the opposite direction so that it moves towards the top of the operating table 1 until it is completely and tightly closed. If the oil pot 14 needs to be stored for transport, first open the door 902 on the inner wall of both sides of the outer wall of the work box 9, place the oil pot 14 steadily into the work box 9, and after confirming that it is placed securely, close the door 902 on both sides. The equipment can then be easily carried using the work box 9 and the support bases 10 at the four corners of the bottom. To perform the next set of simulation operations, repeat all the above steps. This achieves resistance during the closing process and triggers feedback when the closing is complete, improving the realism of the simulation scenario and the operational feedback.

[0043] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A reusable oil pan fire extinguishing demonstration device, comprising: The operating table (1) has a work box (9) fixedly installed at its bottom, and a support base (10) is fixedly installed on the outer wall of each of the four corners of the bottom of the work box (9). The operating table (1) is characterized by further comprising: Cover assembly: The cover assembly is installed at one end of the top of the operating table (1) for covering the top of the operating table (1); Fuel stove (13): The fuel stove (13) is fixedly installed at the other end of the top of the worktable (1). Several burners are arranged on the fuel stove (13). Each burner has an oil pan (14) placed on it. Each oil pan (14) has a lid (15) on top. Each oil pan (14) is used in conjunction with a lid (15). Ignition assemblies: There are several sets of ignition assemblies, and the several sets of ignition assemblies are respectively set in several oil pans (14) to simulate the fire scene of the oil pans (14) by the ignition assemblies cooperating with the closing and opening actions of the lids (15); Detection component: The detection component is installed inside the oil pot (14) to monitor the pressure and water level inside the oil pot (14) by means of the closing action of the lid (15); Sealing mechanism: There are several sets of sealing mechanisms, which are equidistantly arranged on the top of the inner wall of the oil pot (14) to generate resistance when the pot lid (15) is closed, and guide the pot lid (15) to move to the sealing position.

2. The reusable oil pan fire extinguishing demonstration device as described in claim 1, characterized in that, The sealing mechanism includes: sleeve one (201), insert rod one (202), buffer spring one (203), sleeve two (204), two insert rods two (205), buffer spring two (206), compression block (207), and limiting block (208). One end of the outer wall of sleeve one (201) is fixedly installed on the top of one end of the inner wall of the oil pot (14). Insert rod one (202) is inserted into sleeve one (201). Sleeve two (204) is fixedly installed on the other end of sleeve one (201). Insert rod two (205) is inserted into sleeve two (204). Buffer spring two (206) is fixedly installed on... The extrusion block (207) is fixedly installed at one bottom end of the pot lid (15) between the second insertion rod (205) and the first sleeve (201). The extrusion block (207) is correspondingly set with the first insertion rod (202). The limiting block (208) is fixedly installed at one bottom end of the pot lid (15). The limiting block (208) is correspondingly set with the second insertion rod (205). A sliding groove is opened at one end of the limiting block (208) near the extrusion block (207). Both the extrusion block (207) and the limiting block (208) are arc-shaped. A trigger switch (904) is fixedly installed on the inner wall of the bottom of the first sleeve (201).

3. The reusable oil pan fire extinguishing demonstration device as described in claim 2, characterized in that, The ignition assembly includes: several rotary switches (401), an ultrasonic atomizer (402), several light strips (403), a lamp tube (903), and several fans (906). Several rotary switches (401) are respectively fixedly installed on the top of the fuel stove (13). The ultrasonic atomizer (402) is fixedly installed on the bottom inner wall of the oil pan (14) by a bracket. Several light strips (403) are respectively distributed on the top of the inner side of the oil pan (14). The light strips (403) are located between the sealing mechanism and the ultrasonic atomizer (402). The lamp tube (903) is fixedly installed on the bottom inner wall of the oil pan (14). Several fans (906) are respectively distributed on the top of the inner side of the oil pan (14).

4. The reusable oil pan fire extinguishing demonstration device as described in claim 3, characterized in that, The detection components include a water level sensor (404) and a pressure switch (405). The water level sensor (404) is fixedly installed on the inner wall of one side of the oil pan (14). The sensing end of the water level sensor (404) is at the same height as the top of the ultrasonic atomizer (402). The pressure switch (405) is fixedly installed on the top of the inner wall of the other side of the oil pan (14).

5. A reusable oil pan fire extinguishing demonstration device as described in claim 2, characterized in that, Both the sleeve (201) and the insert rod (202) are arc-shaped, and the arc centers of several insert rods (202) are the same.

6. A reusable oil pan fire extinguishing demonstration device as described in claim 2, characterized in that, The other end of the top of the operating table (1) is provided with a water collection trough. The water collection trough is arranged in a ring shape. The bottom of the water collection trough is arranged with a single-slope drainage structure. The inner wall of the bottom of the water collection trough is provided with an opening two. A water pipe three (601) is fixedly installed on the inner wall of the circumference of the opening two. The end of the water pipe three (601) away from the operating table (1) is fixedly connected to an external water source.

7. A reusable oil pan fire extinguishing demonstration device as described in claim 2, characterized in that, The bottom of the limiting block (208) near the squeezing block (207) is curved, and the top of the other insertion rod (205) away from the buffer spring (206) is curved.

8. A reusable oil pan fire extinguishing demonstration device as described in claim 2, characterized in that, The cover assembly includes a support base (901) and a support plate (11). The support base (901) is fixedly installed on one end of the top of the operating table (1). The bottom of the support plate (11) is hinged to the top of the support base (901). One end of the support plate (11) has a slot. The slot is used in conjunction with the fuel stove (13). The rotation trajectory of the support plate (11) covers an angle range of 0-120 degrees. One end of the outer wall of the work box (9) has an installation opening. Both sides of the inner wall of the installation opening have doors (902).

9. A reusable oil pan fire extinguishing demonstration device as described in claim 3, characterized in that, Pressure sensors (905) are fixedly installed on both sides of the top of the fuel stove (13). The two pressure sensors (905) are respectively located between the two oil pans (14) and the fuel stove (13). The ultrasonic atomizer (402), the light strip (403) and the lamp tube (903) are electrically connected to the trigger switch (904) and the pressure sensor (905) respectively.

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