Assembly type smoke inhalation injury experiment device

Abstract

The invention discloses an assembled smoke inhalation injury experiment device, and relates to the technical field of medical experiment equipment. Comprising a combustion tank main body, a fixed base is arranged at the lower end of the combustion tank main body, an air guide cover is arranged at the upper end of the combustion tank main body, smoke guide pipes are evenly arranged on the two sides of the air guide cover, anti-leakage structures are arranged in the smoke guide pipes, and mounting bases are arranged on the two sides of the combustion tank main body; a connecting structure is arranged between the experiment box and the combustion tank body, the combustion tank body and the experiment box are made of transparent materials, so that experimenters can clearly observe internal combustion and smoke flowing conditions, experiment data can be conveniently monitored and recorded in real time, fuel can be stably combusted through the design of the combustion base, and the combustion efficiency is improved. The igniter provides a convenient ignition mode, it is ensured that the experiment can be started rapidly, the oxygen content in the combustion tank can be adjusted through the arrangement of the oxygen inlet pipe, and therefore combustion conditions in different environments can be simulated.

Description

Technical Field

[0001] This invention belongs to the field of medical experimental equipment technology, and in particular relates to an assembled experimental device for detecting smoke inhalation-induced injuries. Background Technology

[0002] Smoke inhalation injury refers to acute damage to the respiratory tract and even the lung parenchyma caused by inhaling smoke. It can be accompanied by systemic poisoning, and in severe cases, it can cause hypoxia, carbon monoxide poisoning, respiratory distress, acid-base imbalance, and acute asphyxia. This type of injury often occurs in enclosed or poorly ventilated environments. Modern people mostly live in relatively enclosed spaces and rooms. After a fire, statistics show that about 5% to 10% of burn patients suffer from inhalation injuries. With the gradual improvement of burn treatment measures, the mortality rate caused by shock and infection has decreased significantly. However, the mortality rate of burns combined with inhalation injuries can still reach 50% to 60%, and the mortality rate of those with severe inhalation injuries can even be as high as 80% or more, indicating that inhalation injury is one of the main causes of death for patients. In rat smoke inhalation experiments, the common practice is to place smoke pellets into a sealed experimental container and assess the degree of injury by observing the rats' behavior and physiological responses in the smoke environment. However, this method has significant drawbacks, primarily in controlling the amount of smoke generated: the amount of smoke released during the combustion of the smoke pellets is difficult to precisely adjust, leading to inconsistent smoke concentrations in each experiment, introducing significant uncertainty and affecting the accuracy and comparability of the results. Furthermore, to enhance the scientific rigor of the experiment, researchers often need to set up multiple experimental groups for control analysis. However, currently used experimental devices are mostly fixed, integrated designs lacking flexibility. This structure cannot dynamically adjust the number of experimental boxes according to actual experimental needs, limiting the diversity of experimental designs. Especially when it is necessary to temporarily add experimental boxes to expand the sample size during the experiment, smoke leakage is prone to occur at the connection points of the device. Smoke escapes through the connecting pipes, not only disrupting the stability of the experimental environment but also potentially interfering with data collection, ultimately causing a significant negative impact on the overall experimental results.

[0003] To address these issues, we provide a prefabricated experimental device for detecting smoke inhalation-induced injuries. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated smoke inhalation injury experimental device, which can solve the problems in rat smoke inhalation experiments, which usually involve placing smoke pellets into a closed container and observing the rats' activity to determine the injury. However, the amount of smoke emitted by the smoke pellets cannot be accurately controlled, resulting in large variables in the experiment. Moreover, multiple sets of experimental boxes are often set up for comparative experiments, but current devices are mostly one-piece structures, which cannot adjust the number of experimental boxes according to usage needs. During the experiment, when a new experimental box is added, smoke can easily leak from the connecting pipe, affecting the experimental results.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an assembled experimental device for detecting smoke inhalation injuries, comprising a combustion canister body, a fixed base at the lower end of the combustion canister body, an air guide hood at the upper end of the combustion canister body, smoke guide pipes evenly arranged on both sides of the air guide hood, an anti-leakage structure inside the smoke guide pipes, mounting seats on both sides of the combustion canister body, an experimental box detachably mounted on one side of the mounting seat, a connecting structure between the experimental box and the combustion canister body, a connecting pipe at the upper end of the experimental box, a connecting smoke pipe between the connecting pipe and the smoke guide pipes, and air guide structures inside both the connecting smoke pipe and the air guide hood.

[0006] Preferably, a combustion seat is provided in the middle of the lower end of the combustion tank body, an igniter is provided in the upper end of the combustion seat, an oxygen inlet pipe is inserted through one side of the lower end of the combustion seat, one end of the oxygen inlet pipe extends to the outside of the combustion tank body, and the oxygen inlet pipe is L-shaped.

[0007] Preferably, a canister door is provided on one side of the combustion canister body, a movable door is provided on one side of the experimental box, and a handle is provided on one side of both the movable door and the canister door. Both the combustion canister body and the experimental box are made of transparent material.

[0008] Preferably, the connection structure includes a support frame, which is fixedly installed at both ends of one side of the mounting base. The support frame is L-shaped, and the experimental box is installed between the two support frames. The surface of the support frame is provided with a connection hole, which is elongated. Two first foot posts are fixedly installed on one side of the lower end of the experimental box, and the first foot posts are movably inserted into the connection hole.

[0009] Preferably, one end of the support frame is provided with an insertion groove, which is U-shaped. The lower end of the support frame is provided with a limiting groove, which is circular and connected to the insertion groove. A second foot post is fixedly installed on one side of the lower end of the experimental box. The second foot post is movably inserted into the insertion groove. A limiting block is movably fitted on the outer side of the second foot post, which is movably inserted into the limiting groove.

[0010] Preferably, the lower end of the second foot post has a groove, and an adjusting rod is movably inserted inside the second foot post. The lower end of the adjusting rod is movably inserted inside the groove and is fitted with a pull buckle. The upper end of the adjusting rod is provided with a movable block. A support spring connected to the movable block is movably sleeved on the surface of the adjusting rod. Both sides of the surface of the second foot post have sliding grooves, and sliders are movably inserted inside the sliding grooves. One end of the slider is connected to a limiting block, and the other end of the slider is fixedly connected to the movable block.

[0011] Preferably, the air guiding structure includes a control valve, the control valve has a surface for connecting to the flue, the surface for connecting to the flue is provided with an air guiding sleeve, and mounting brackets are fixedly installed inside the air guiding sleeve and the air guiding hood. A drive motor is provided on one side of the mounting bracket, and an air suction impeller is installed through the mounting bracket at the output end of the drive motor.

[0012] Preferably, the leak-proof structure includes a movable nut, which is movably sleeved on both ends of the connecting flue pipe. The movable nut is threaded to the surface of the connecting pipe and the flue pipe. One end of the flue pipe has an insertion hole, and one end of the connecting flue pipe is provided with an insertion block, which cooperates with the insertion hole.

[0013] Preferably, one end of the connecting flue is provided with an insert tube, which passes through the flue and is inserted into the interior of the air guide hood. Air inlets are provided on both sides of the insert tube.

[0014] Preferably, four guide rods are fixedly installed on both sides inside the air guide shroud. An installation plate is installed at one end of each guide rod. A movable plate is movably sleeved on the surface of each guide rod. A compression spring is installed between the movable plate and the installation plate. A sealing block is provided on one side of the installation plate. One end of the sealing block is in contact with one end of the insertion tube. The sealing block cooperates with one end of the smoke guide tube. The guide rods and the air inlet are staggered.

[0015] The present invention has the following beneficial effects: 1. In this invention, the leak-proof structure achieves a tight connection between the connecting pipe and the connecting tube / smoke guide pipe through the engagement of the movable nut and the thread, effectively preventing smoke leakage during transmission. The design of the insert block and the insertion hole further enhances the stability of the connection, ensuring that the smoke can smoothly enter the air guide hood through the smoke guide pipe. The setting of the insert pipe and the distribution of the air inlets ensure that the smoke is evenly dispersed when entering the air guide hood, improving the accuracy of the experiment. During the experiment, the compression spring supports the moving plate, causing the sealing block on one side of the moving plate to... Unused smoke guide pipes are sealed to prevent smoke from escaping through unused pipes and thus avoid affecting the experimental results. When a new experimental box is added during the experiment, the insert is inserted into the inside of the smoke guide pipe. The insert contacts the sealing block, causing the sealing block to move and compress the compression spring, so that the air inlet at one end of the insert is inserted into the inside of the air guide hood. This connects the smoke guide pipe to the air guide hood, preventing smoke leakage when adding a new connecting pipe. This not only improves the airtightness of the experimental device but also provides a safer and more reliable experimental environment for the experimenters. 2. In this invention, the connecting structure provides stable support for the experimental box through the support frame, ensuring that the experimental box will not shake or shift during the experiment. The elongated connecting hole design allows for some adjustment space during installation, which can adapt to the installation needs of experimental boxes of different sizes. The first foot post is movably inserted into the connecting hole, further enhancing the stability of the experimental box. The U-shaped insertion slot and the circular limiting slot design allow the second foot post to be accurately inserted and fixed on the support frame. The combination of the limiting block and the adjusting rod enables quick installation and disassembly of the experimental box. The experimenter only needs to pull the adjusting rod with the pull buckle to make the movable block drive the slider to move in the slide groove, thereby moving the limiting block in the limiting groove to lock or unlock the limiting block, which facilitates the installation and removal of the experimental box. The setting of the support spring ensures that the movable block can remain in the initial position when there is no external force, so that the limiting block is always in the locked state, ensuring the stability and safety of the experimental box. 3. In this invention, by setting the control valve, the experimenter can precisely control the airflow speed and direction inside the connecting smoke pipe and the air guide hood, thereby achieving precise control of the smoke flow. The design of the air guide sleeve further enhances the stability of the airflow and reduces the influence of eddies and turbulence on the experimental results. The combination of the mounting frame and the drive motor provides stable support and power for the suction impeller, enabling the suction impeller to work efficiently and ensuring that the smoke can flow according to the preset path and speed. The rotation of the suction impeller generates a strong suction force, which quickly draws the smoke generated in the combustion canister into the smoke guide pipe and guides it into the experimental box through the connecting smoke pipe, providing the experimenter with a stable and reliable smoke sample. 4. In this invention, the device, with its transparent combustion canister body and experimental box, allows researchers to clearly observe the internal combustion and smoke flow, facilitating real-time monitoring and recording of experimental data. The combustion seat design ensures stable fuel combustion, while the igniter provides a convenient ignition method, ensuring the experiment can start quickly. The oxygen inlet pipe allows for adjustment of the oxygen content within the combustion canister, simulating combustion conditions under different environments. The experimental box is connected to the smoke guide pipe via connecting pipes and smoke pipes, allowing smoke to smoothly enter the experimental box for analysis and research. Furthermore, the design of the movable door and canister door facilitates operation and maintenance, improving experimental efficiency.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of the device of the present invention; Figure 2 This is a schematic diagram of a half-section of the main body of the device of the present invention. Figure 3 This is a schematic diagram of the bottom of the experimental box mounting structure of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of A in the middle; Figure 5 This is a partial cross-sectional view of the installation area of ​​the experimental box according to the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of B; Figure 7 This is a schematic diagram of the air guide shroud structure of the present invention; Figure 8 This is a schematic diagram of the structure of the connecting flue installation point of the present invention; Figure 9 This is a half-sectional structural diagram of the connection between the connecting smoke pipe and the smoke guide pipe of the present invention; Figure 10 For the present invention Figure 9 A schematic diagram of the enlarged C-shaped structure.

[0019] The attached diagram lists the components represented by each number as follows: 100. Combustion tank body; 101. Fixed base; 102. Tank door; 110. Air guide hood; 111. Smoke guide pipe; 120. Mounting base; 130. Combustion base; 131. Igniter; 132. Oxygen inlet pipe; 140. Guide rod; 141. Mounting plate; 142. Compression spring; 143. Moving plate; 144. Sealing block; 200. Support frame; 201. Connecting hole; 202. Insertion groove; 203. Limiting groove; 300. Experiment box; 301. Movable 302. Moving door; 310. Connecting pipe; 320. First foot post; 321. Second foot post; 322. Limiting block; 323. Slide groove; 324. Pull buckle; 325. Adjusting rod; 326. Support spring; 400. Connecting smoke pipe; 401. Movable nut; 402. Insert block; 410. Air guide sleeve; 411. Mounting bracket; 412. Drive motor; 413. Suction impeller; 420. Control valve; 430. Inserting pipe; 431. Air inlet. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, this embodiment provides an assembled smoke inhalation injury experimental device, including a combustion canister body 100. A fixed base 101 is provided at the lower end of the combustion canister body 100, and an air guide hood 110 is provided at the upper end of the combustion canister body 100. Smoke guide pipes 111 are evenly arranged on both sides of the air guide hood 110. Mounting seats 120 are provided on both sides of the combustion canister body 100. An experimental box 300 is detachably mounted on one side of each mounting seat 120. A connecting pipe 302 is provided at the upper end of the experimental box 300, and a connecting smoke pipe 4 is provided between the connecting pipe 302 and the smoke guide pipes 111. 00, a combustion seat 130 is provided in the middle of the lower end of the combustion tank body 100. An igniter 131 is provided in the upper end of the combustion seat 130. An oxygen inlet pipe 132 is inserted through one side of the lower end of the combustion seat 130. One end of the oxygen inlet pipe 132 extends to the outside of the combustion tank body 100. The oxygen inlet pipe 132 is L-shaped. A tank door 102 is provided on one side of the combustion tank body 100. A movable door 301 is provided on one side of the experimental box 300. A handle is provided on one side of both the movable door 301 and the tank door 102. Both the combustion tank body 100 and the experimental box 300 are made of transparent material. In this embodiment, the device, through the combustion canister body 100 made of transparent material and the experimental box 300, allows researchers to clearly observe the internal combustion and smoke flow, facilitating real-time monitoring and recording of experimental data. The combustion seat 130 is designed to ensure stable fuel combustion, while the igniter 131 provides a convenient ignition method, ensuring the experiment can start quickly. The oxygen inlet pipe 132 allows for adjustment of the oxygen content within the combustion canister, thereby simulating combustion conditions under different environments. The experimental box 300 is connected to the smoke guide pipe 111 via the connecting pipe 302 and the connecting smoke pipe 400, allowing smoke to smoothly enter the experimental box 300 for researchers to analyze and study. Furthermore, the design of the movable door 301 and the canister door 102 facilitates operation and maintenance by researchers, improving experimental efficiency.

[0022] like Figure 2 and Figure 9 As shown, the assembled smoke inhalation injury experimental device provided in this embodiment has an air guiding structure inside the connecting smoke pipe 400 and the air guide hood 110. The air guiding structure includes a control valve 420. The control valve 420 has a surface that connects to the smoke pipe 400. An air guide sleeve 410 is provided on the surface that connects to the smoke pipe 400. A mounting frame 411 is fixedly installed inside the air guide sleeve 410 and the air guide hood 110. A drive motor 412 is provided on one side of the mounting frame 411. The output end of the drive motor 412 passes through the mounting frame 411 and is fitted with a suction impeller 413. In this embodiment, by setting the control valve 420, the experimenter can precisely control the airflow speed and direction inside the connecting smoke pipe 400 and the air guide hood 110, thereby achieving precise control of the smoke flow. The design of the air guide sleeve 410 further enhances the stability of the airflow and reduces the influence of eddies and turbulence on the experimental results. The combination of the mounting bracket 411 and the drive motor 412 provides stable support and power for the suction impeller 413, enabling the suction impeller 413 to work efficiently and ensuring that the smoke can flow along the preset path and speed. The rotation of the suction impeller 413 generates a strong suction force, which quickly draws the smoke generated in the combustion canister body 100 into the smoke guide pipe 111 and guides it into the experimental box 300 through the connecting smoke pipe 400, providing the experimenter with a stable and reliable smoke sample.

[0023] like Figures 1 to 7As shown in the figure, this embodiment provides an assembled smoke inhalation injury experimental device. A connection structure is provided between the experimental box 300 and the combustion canister body 100. The connection structure includes a support frame 200, which is fixedly installed at both ends of one side of the mounting base 120. The support frame 200 is L-shaped. The experimental box 300 is installed between the two support frames 200. A connecting hole 201 is provided on the surface of the support frame 200. The connecting hole 201 is elongated. Two first foot posts 310 are fixedly installed on one side of the lower end of the experimental box 300. The first foot posts 310 are movably inserted into the connecting hole 201. An insertion groove 202 is provided at one end of the support frame 200. The insertion groove 202 is U-shaped. A limiting groove 203 is provided at the lower end of the support frame 200. The limiting groove 203 is circular and connects to the insertion groove 202. The experimental box 300... A second foot post 320 is fixedly installed on one side of the lower end. The second foot post 320 is movably inserted into the insertion groove 202. A limiting block 321 is movably sleeved on the outside of the second foot post 320. The limiting block 321 is movably inserted into the limiting groove 203. A groove is opened at the lower end of the second foot post 320. An adjusting rod 325 is movably inserted into the second foot post 320. A pull buckle 323 is installed at the lower end of the adjusting rod 325, which is movably inserted into the groove. A movable block is provided at the upper end of the adjusting rod 325. A support spring 326 connected to the movable block is movably sleeved on the surface of the adjusting rod 325. Sliding grooves 322 are opened on both sides of the surface of the second foot post 320. A slider 324 is movably inserted into the sliding groove 322. One end of the slider 324 is connected to the limiting block 321, and the other end of the slider 324 is fixedly connected to the movable block. In this embodiment, the connection structure provides stable support for the experimental box 300 through the support frame 200, ensuring that the experimental box 300 will not shake or shift during the experiment. The elongated connection hole 201 design allows the experimental box 300 to have a certain adjustment space during installation, which can adapt to the installation requirements of experimental boxes 300 of different sizes. The first foot post 310 is movably inserted into the connection hole 201, further enhancing the stability of the experimental box 300. The U-shaped insertion slot 202 and the circular limiting slot 203 design allow the second foot post 320 to be accurately inserted and fixed to the support frame 200. On the upper part, the combination of the limiting block 321 and the adjusting rod 325 enables the quick installation and disassembly of the experimental box 300. The experimenter only needs to pull the adjusting rod 325 by pulling the buckle 323 to make the movable block drive the slider 324 to move in the slide groove 322, thereby making the limiting block 321 move in the limiting groove 203, realizing the locking or unlocking of the limiting block 321, which facilitates the installation and removal of the experimental box 300. The setting of the support spring 326 ensures that the movable block can remain in the initial position when it is not subjected to external force, so that the limiting block 321 is always in the locked state, ensuring the stability and safety of the experimental box 300.

[0024] like Figures 8 to 10 As shown in the figure, this embodiment provides an assembled smoke inhalation injury experimental device. The smoke guide tube 111 has an internal anti-leakage structure, including a movable nut 401 that is movably sleeved on both ends of the connecting smoke tube 400. The movable nut 401 is threaded onto the surfaces of the connecting tube 302 and the smoke guide tube 111. One end of the smoke guide tube 111 has an insertion hole. One end of the connecting smoke tube 400 has an insertion block 402 that mates with the insertion hole. One end of the connecting smoke tube 400 has an insertion tube 430 that penetrates the smoke guide tube 111 and is inserted into the air duct. Inside the cover 110, air inlets 431 are provided on both sides of the insertion tube 430. Four guide rods 140 are fixedly installed on both sides inside the air guide cover 110. A mounting plate 141 is installed on one end of the guide rod 140. A movable plate 143 is movably sleeved on the surface of the guide rod 140. A compression spring 142 is installed between the movable plate 143 and the mounting plate 141. A sealing block 144 is provided on one side of the mounting plate 141. One end of the sealing block 144 is in contact with one end of the insertion tube 430. The sealing block 144 cooperates with one end of the smoke guide tube 111. The guide rods 140 and the air inlets 431 are staggered. In this embodiment, the leak-proof structure achieves a tight connection between the connecting pipe 400, the connecting pipe 302, and the smoke guide pipe 111 through the precise fit of the movable nut 401 and the thread, effectively preventing smoke leakage during transmission and ensuring the stability of the smoke flow direction. The fit design of the plug 402 and the plug hole further enhances the stability and reliability of the connection, avoiding leakage problems caused by loose connections. This ensures that the smoke can smoothly and efficiently enter the air guide hood 110 through the smoke guide pipe 111. The ingenious setting of the plug 430 and the reasonable distribution of the air inlet 431 enable the smoke to be evenly dispersed when entering the air guide hood 110, reducing the situation of excessively high or low local smoke concentration, and significantly improving the accuracy of the experiment and the reliability of the data. During the experiment, the compression spring 142 provides continuous support to the moving plate 143, allowing the sealing block 144 on one side of the moving plate 143 to tightly seal the unused smoke guide tube 111. This effectively prevents the accidental discharge of smoke from the unused smoke guide tube 111, avoiding interference with the experimental results from smoke leakage and ensuring the effectiveness of the experiment. When a new experimental box 300 needs to be added during the experiment, the insertion tube 430 will be precisely inserted into the smoke guide tube 111, with the insertion tube 430 directly contacting the sealing block 144. The contact point moves the sealing block 144 smoothly while compressing the compression spring 142, allowing the air inlet 431 at one end of the insertion tube 430 to be smoothly inserted into the interior of the air guide shroud 110. This achieves a seamless connection between the connecting pipe 400 and the air guide shroud 110. This design not only effectively avoids the risk of flue gas leakage when adding a new connecting pipe 302, but also further improves the airtightness and stability of the entire experimental device. It also creates a safer and more reliable experimental environment for the experimenters and reduces potential risks during operation.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A prefabricated experimental device for smoke inhalation injury, comprising a combustion canister body (100), wherein a fixed base (101) is provided at the lower end of the combustion canister body (100), characterized in that: The upper end of the combustion tank body (100) is provided with an air guide hood (110), and smoke guide pipes (111) are evenly arranged on both sides of the air guide hood (110). The smoke guide pipes (111) are provided with a leak-proof structure inside. The combustion tank body (100) is provided with mounting bases (120) on both sides. An experimental box (300) is detachably installed on one side of the mounting base (120). A connection structure is provided between the experimental box (300) and the combustion tank body (100). The upper end of the experimental box (300) is provided with a connecting pipe (302), and a connecting smoke pipe (400) is provided between the connecting pipe (302) and the smoke guide pipe (111). The interior of the connecting smoke pipe (400) and the air guide hood (110) are both provided with air guide structures.

2. The assembled smoke inhalation injury experimental device according to claim 1, characterized in that: A combustion seat (130) is provided in the middle of the lower end of the combustion tank body (100). An igniter (131) is provided in the upper end of the combustion seat (130). An oxygen inlet pipe (132) is inserted through one side of the lower end of the combustion seat (130). One end of the oxygen inlet pipe (132) extends to the outside of the combustion tank body (100). The oxygen inlet pipe (132) is L-shaped.

3. The assembled smoke inhalation injury experimental device according to claim 1, characterized in that: The combustion canister body (100) has a canister door (102) on one side, and the experimental box (300) has a movable door (301) on one side. The movable door (301) and the canister door (102) are both provided with handles on one side. The combustion canister body (100) and the experimental box (300) are both made of transparent material.

4. The assembled smoke inhalation injury experimental device according to claim 1, characterized in that: The connection structure includes a support frame (200), which is fixedly installed at both ends of one side of the mounting base (120). The support frame (200) is L-shaped. The experimental box (300) is installed between the two support frames (200). The surface of the support frame (200) is provided with a connection hole (201), which is elongated. Two first foot posts (310) are fixedly installed on one side of the lower end of the experimental box (300). The first foot posts (310) are movably inserted into the inside of the connection hole (201).

5. The assembled smoke inhalation injury experimental device according to claim 4, characterized in that: One end of the support frame (200) is provided with an insertion groove (202), which is U-shaped. The lower end of the support frame (200) is provided with a limiting groove (203), which is circular. The limiting groove (203) is connected to the insertion groove (202). A second foot post (320) is fixedly installed on one side of the lower end of the experimental box (300). The second foot post (320) is movably inserted into the insertion groove (202). A limiting block (321) is movably sleeved on the outer side of the second foot post (320), which is movably inserted into the limiting groove (203).

6. The assembled smoke inhalation injury experimental device according to claim 5, characterized in that: The lower end of the second foot post (320) is provided with a groove. An adjusting rod (325) is movably inserted inside the second foot post (320). The lower end of the adjusting rod (325) is movably inserted inside the groove and is equipped with a pull buckle (323). The upper end of the adjusting rod (325) is provided with a movable block. A support spring (326) connected to the movable block is movably sleeved on the surface of the adjusting rod (325). Both sides of the surface of the second foot post (320) are provided with sliding grooves (322). A slider (324) is movably inserted inside the sliding groove (322). One end of the slider (324) is connected to the limiting block (321), and the other end of the slider (324) is fixedly connected to the movable block.

7. The assembled smoke inhalation injury experimental device according to claim 1, characterized in that: The air guiding structure includes a control valve (420), the control valve (420) is provided with a surface for connecting the flue pipe (400), the surface for connecting the flue pipe (400) is provided with an air guide sleeve (410), the air guide sleeve (410) and the air guide cover (110) are both fixedly installed with mounting brackets (411), a drive motor (412) is provided on one side of the mounting bracket (411), and an air suction impeller (413) is installed through the mounting bracket (411) at the output end of the drive motor (412).

8. The assembled smoke inhalation injury experimental device according to claim 1, characterized in that: The leak-proof structure includes a movable nut (401), which is movably sleeved on both ends of the connecting flue (400). The movable nut (401) is threaded to the surface of the connecting pipe (302) and the flue pipe (111). One end of the flue pipe (111) is provided with an insertion hole, and one end of the connecting flue pipe (400) is provided with an insertion block (402), which cooperates with the insertion hole.

9. The assembled smoke inhalation injury experimental device according to claim 8, characterized in that: One end of the connecting smoke pipe (400) is provided with a tube (430), which penetrates the smoke guide pipe (111) and is inserted into the interior of the air guide hood (110). Air inlets (431) are provided on both sides of the tube (430).

10. The assembled smoke inhalation injury experimental device according to claim 9, characterized in that: Four guide rods (140) are fixedly installed on both sides inside the air guide shroud (110). An installation plate (141) is installed on one end of the guide rod (140). A movable plate (143) is movably sleeved on the surface of the guide rod (140). A compression spring (142) is installed between the movable plate (143) and the installation plate (141). A sealing block (144) is provided on one side of the installation plate (141). One end of the sealing block (144) is in contact with one end of the insertion tube (430). The sealing block (144) is matched with one end of the smoke guide tube (111). The guide rods (140) and the air inlet (431) are staggered.

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