Fire extinguishing test box with variable space

Abstract

The utility model provides a variable-space fire extinguishing test box, which belongs to the technical field of fire extinguishing and comprises a test box body, a space adjusting mechanism and a space monitoring module, the space adjusting mechanism comprises a first baffle, a second baffle and two adjusting assemblies. The first baffle plate, the second baffle plate and the inner wall of the test box body are encircled to form a test cavity for testing fire extinguishment; the first baffle plate and the second baffle plate have degrees of freedom of moving along the longitudinal direction and the transverse direction of the test box body; the first baffle and the second baffle are vertically arranged; a space for the first baffle to move is formed between the second baffle and the first baffle; the two adjusting assemblies are in transmission connection with the first baffle and the second baffle correspondingly. And the space monitoring module is arranged in the test cavity. According to the fire extinguishing test box with the variable space, the positions of the first baffle and the second baffle are adjusted through the two adjusting assemblies, the length and the width of the test cavity are changed, and the fire extinguishing performance test requirements of fire extinguishing agents of different specifications under different space scales are met.

Description

Technical Field

[0001] This utility model belongs to the field of fire extinguishing technology, specifically relating to a variable space fire extinguishing test chamber. Background Technology

[0002] Performance testing of fire extinguishing devices based on total flooding fire suppression methods (such as fire extinguishing performance and the physicochemical properties of extinguishing agents) needs to be conducted in a controlled and adjustable experimental environment. Traditional test chambers typically employ a fixed-volume design, making it difficult to simulate fire extinguishing effects at different spatial scales, resulting in discrepancies between test data and actual applications. Furthermore, the fixed volume of traditional test chambers prevents them from flexibly adapting to diverse testing requirements. Utility Model Content

[0003] This utility model provides a variable space fire extinguishing test chamber to solve the technical problem that traditional test chambers in the prior art have fixed volumes and cannot flexibly adapt to different testing needs.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a variable space fire extinguishing test chamber, comprising:

[0005] Test chamber;

[0006] A space adjustment mechanism is installed inside the test chamber; the space adjustment mechanism includes a first baffle, a second baffle, and two adjustment components; the first baffle, the second baffle, and the inner wall of the test chamber surround to form a test chamber for testing fire extinguishing; the first baffle and the second baffle respectively have degrees of freedom to move along the longitudinal and transverse directions of the test chamber, and the first baffle and the second baffle are vertically arranged; there is a gap between the second baffle and the first baffle for the first baffle to move; the two adjustment components are respectively drivenly connected to the first baffle and the second baffle;

[0007] A space monitoring module is installed inside the test chamber to monitor the size of the test chamber.

[0008] In one possible implementation, the test chamber has two vertically arranged elongated sliding holes, which correspond to the first baffle and the second baffle, respectively; the adjustment component is a lead screw drive mechanism, and the lead screw and nut of the lead screw drive mechanism are located in the elongated sliding holes; the lower end of the nut of the lead screw drive mechanism is connected to the corresponding first baffle or second baffle.

[0009] In one possible implementation, the elongated sliding hole is formed on the top or bottom of the test chamber.

[0010] In one possible implementation, the elongated sliding hole is provided with two opposing elastic seals; the opposite ends of the two elastic seals are in contact with each other; the nut is located between the two elastic seals and is slidably connected to the elastic seals.

[0011] In one possible implementation, sealing grooves are provided on both side walls of the elongated sliding hole; the elastic sealing element includes an elastic layer and multiple elastic elements; one end of the elastic layer is disposed in the sealing groove and is slidably connected to the inner wall of the sealing groove; the multiple elastic elements are disposed parallel to each other in the sealing groove, and their two ends are respectively connected to the elastic layer and the inner wall of the sealing groove.

[0012] In one possible implementation, the variable space fire extinguishing test chamber further includes an auxiliary sliding assembly disposed on the nut to limit the sliding direction of the nut.

[0013] In one possible implementation, the test chamber has multiple limiting grooves, which are located on both sides of the two elongated sliding holes, and the length of the multiple limiting grooves is consistent with the length direction of the elongated sliding holes; the auxiliary sliding assembly includes a guide plate and a limiting flange; the guide plate is fixed to the nut and located above the test chamber; the limiting flange is fixed to the guide plate and slidably connected to the limiting grooves.

[0014] In one possible implementation, the space monitoring module includes two displacement sensors, both of which are disposed on the inner wall of the test chamber and located inside the test cavity. The two displacement sensors are used to monitor the movement distance of the first baffle and the second baffle, respectively.

[0015] In one possible implementation, the test chamber is further equipped with a fire extinguishing agent monitoring module, which is located on the second baffle and is used to monitor the fire extinguishing data during the fire extinguishing test.

[0016] In one possible implementation, the extinguishing agent monitoring module includes a temperature sensor, a humidity sensor, a pressure sensor, and a gas sensor, which are used to monitor temperature changes, humidity changes, pressure changes, and gas changes within the test chamber, respectively.

[0017] The beneficial effects of this utility model's variable-space fire extinguishing test chamber are as follows: Compared with the prior art, in use, the variable-space fire extinguishing test chamber of this utility model allows the fire extinguishing equipment to be tested, the fire source, and other related test items to be placed in a suitable position inside the test chamber. At this time, the first and second baffles are in their initial positions, forming a test cavity of a certain size together with the inner wall of the test chamber. When it is necessary to change the size of the test cavity, the first and second baffles are moved by adjusting the components. Since the first baffle has a degree of freedom to move along the longitudinal direction of the test chamber, and the second baffle has a degree of freedom to move along the transverse direction of the test chamber, and the two are set perpendicularly, the adjustment components can control the movement of the first baffle in the longitudinal direction and the second baffle in the transverse direction, respectively. During the movement, the first baffle can move within the gap between the second and first baffles, thereby changing the dimensions of the test cavity in both length and width. The space monitoring module monitors the changes in the size of the space inside the test cavity in real time. As the first and second baffles move, the space monitoring module detects changes in the test chamber's dimensions and feeds back the relevant data, allowing operators to understand the specific spatial parameters of the test chamber. In this way, by adjusting the positions of the first and second baffles using two adjustment components, the length and width of the test chamber can be quickly changed to meet the fire extinguishing performance testing needs of different specifications of fire extinguishing agents under different spatial scales, avoiding the limitations of traditional fixed-size test chambers. The space monitoring module, in conjunction with the space adjustment mechanism, achieves precise adjustment of the test chamber space, ensuring repeatability and data reliability under different test conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 Schematic diagram of the structure of the fire extinguishing test chamber provided in this embodiment of the utility model Figure 1 ;

[0020] Figure 2 A top view of the fire extinguishing test chamber provided in an embodiment of this utility model;

[0021] Figure 3 A schematic diagram of the structure of the fire extinguishing test chamber provided in this embodiment of the utility model. Figure 2 ;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic diagram showing the connection between the adjusting component and the elastic seal provided in an embodiment of the present utility model;

[0024] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0025] Figure 7 This is a schematic diagram showing the connection between the adjustment component and the auxiliary sliding component provided in an embodiment of the present invention.

[0026] The following are the labeling elements in the figure:

[0027] 1. Test chamber; 11. Test cavity; 12. Long sliding hole; 13. Sealing groove; 14. Limiting groove; 2. Space adjustment mechanism; 21. First baffle; 22. Second baffle; 23. Adjustment component; 231. Lead screw; 232. Nut; 233. Tip; 3. Displacement sensor; 4. Elastic seal; 41. Elastic layer; 42. Elastic component; 5. Auxiliary sliding component; 51. Guide plate; 52. Limiting flange; 6. Extinguishing agent monitoring module; 61. Temperature sensor; 62. Humidity sensor; 63. Pressure sensor; 64. Gas sensor; 7. Opening and closing door. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Please see Figures 1 to 7 The present invention provides a variable space fire extinguishing test chamber. A variable space fire extinguishing test chamber includes a test chamber body 1, a space adjustment mechanism 2, and a space monitoring module. The space adjustment mechanism 2 is installed inside the test chamber body 1. The space adjustment mechanism 2 includes a first baffle 21, a second baffle 22, and two adjustment components 23. The first baffle 21, the second baffle 22, and the inner wall of the test chamber body 1 surround to form a test chamber 11 for testing fire extinguishing. The first baffle 21 and the second baffle 22 respectively have degrees of freedom to move along the longitudinal and transverse directions of the test chamber body 1. The first baffle 21 and the second baffle 22 are vertically arranged. There is a gap between the second baffle 22 and the first baffle 21 for the first baffle 21 to move. The two adjustment components 23 are respectively connected to the first baffle 21 and the second baffle 22 via transmission. The space monitoring module is located inside the test chamber 11 and is used to monitor the space size of the test chamber 11.

[0033] Compared with the prior art, the variable-space fire extinguishing test chamber provided in this embodiment allows the fire extinguishing equipment, fire source, and other related test items to be tested to be placed in a suitable position inside the test chamber 1. At this time, the first baffle 21 and the second baffle 22 are in their initial positions, forming a test cavity 11 of a certain size together with the inner wall of the test chamber 1. When it is necessary to change the size of the test cavity 11, the first baffle 21 and the second baffle 22 are moved by adjusting the component 23. Since the first baffle 21 has a degree of freedom to move along the longitudinal direction of the test chamber 1, and the second baffle 22 has a degree of freedom to move along the transverse direction of the test chamber 1, and the two are set perpendicularly, the adjustment component 23 can control the movement of the first baffle 21 in the longitudinal direction and the movement of the second baffle 22 in the transverse direction, respectively. During the movement, the first baffle 21 can move within the distance between the second baffle 22 and the first baffle 21, thereby changing the dimensions of the test cavity 11 in both length and width. The space monitoring module monitors changes in the size of the space within the test chamber 11 in real time. As the first baffle 21 and the second baffle 22 move, the space monitoring module senses changes in the dimensions of the test chamber 11 and feeds back the relevant data, allowing operators to understand the specific spatial parameters of the test chamber 11. In this way, by adjusting the positions of the first baffle 21 and the second baffle 22 using two adjustment components 23, the length and width of the test chamber 11 can be quickly changed, meeting the fire extinguishing performance testing needs of different specifications of fire extinguishing agents under different spatial scales, avoiding the limitations of traditional fixed-size test chambers. The space monitoring module, in conjunction with the space adjustment mechanism 2, achieves precise adjustment of the space within the test chamber 11, ensuring repeatability and data reliability under different test conditions.

[0034] Please see Figures 2 to 4As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the test chamber body 1 has two vertically arranged elongated sliding holes 12, which correspond to the first baffle 21 and the second baffle 22 respectively. The adjustment component 23 is a screw drive mechanism, with the screw 231 located outside the elongated sliding hole 12 and the nut 232 located inside the elongated sliding hole 12. The lower end of the nut 232 is connected to the corresponding first baffle 21 or second baffle 22. When it is necessary to adjust the space of the test chamber 11, the screw 231 is rotated, and the screw 231 drives the nut 232 to move linearly along the axial direction. Since the lower ends of the two nuts 232 are connected to the first baffle 21 and the second baffle 22 respectively, the movement of the nuts 232 pushes the corresponding first baffle 21 or second baffle 22 to change position along the direction of the elongated sliding hole 12, thereby adjusting the size of the test chamber 11. The motor of the lead screw drive mechanism is mounted on the test chamber 1 and is connected to the lead screw 231 for transmission. The motor drives the lead screw to rotate. In this way, with the help of the lead screw drive mechanism, the dimensional changes of the test chamber 11 in the length and width directions can be precisely controlled to meet the high-precision requirements of spatial dimensions for different fire extinguishing tests.

[0035] Please see Figure 5 and Figure 6 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the elongated sliding hole 12 is formed on the top or bottom of the test chamber body 1. The elongated sliding hole 12 can be set at the top, the bottom, or both; the top and bottom of the test chamber body 1 are usually relatively flat areas with low space utilization efficiency. Setting the elongated sliding hole 12 here can make full use of these idle spaces, without affecting the normal function of other parts of the test chamber body 1, avoiding occupying too much space inside or on the side of the test chamber body 1, and providing the necessary space for the movement of the first baffle 21 and the second baffle 22, making the structure of the entire test chamber body 1 more compact and reasonable, and improving the space utilization rate. At the same time, it also avoids the excessive temperature inside the test chamber 11 from affecting the adjustment component 23.

[0036] Please see Figure 5 and Figure 6 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, two opposing elastic sealing elements 4 are provided in the elongated sliding hole 12; the opposite ends of the two elastic sealing elements 4 are in contact with each other; a nut 232 is disposed between the two elastic sealing elements 4 and is slidably connected to the elastic sealing elements 4; the opposite ends of the two elastic sealing elements 4 are in contact with each other, which can effectively prevent gas, smoke or fire extinguishing agent and other substances in the test chamber 11 from leaking to the outside of the test chamber through the elongated sliding hole 12. The elastic sealing elements 4 have a certain degree of elasticity and flexibility, so when the nut 232 slides, it can not only slide stably, but also ensure the sealing effect.

[0037] Please see Figure 5 and Figure 6 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the nut 232 is further provided with pointed tips 233 on both sides, located between the two elastic seals 4. When the nut 232 moves, the pointed tips 233 can contact the elastic seals 4 before the main body of the nut 232, causing local compression and deformation of the elastic seals 4, allowing the elastic seals 4 to better fit the surface of the nut 232, filling any gaps and thus improving sealing performance. At the same time, the pointed tips 233 can also act as guides, allowing the nut 232 to enter the space between the elastic seals 4 more smoothly during movement, reducing jamming and resistance.

[0038] Please see Figure 5 and Figure 6 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, sealing grooves 13 are provided on both opposite side walls of the elongated sliding hole 12; the elastic sealing element 4 includes an elastic layer 41 and multiple elastic elements 42; one end of the elastic layer 41 is disposed in the sealing groove 13 and is slidably connected to the inner wall of the sealing groove 13; multiple elastic elements 42 are arranged parallel and spaced apart in the sealing groove 13, and their two ends are respectively connected to the elastic layer 41 and the inner wall of the sealing groove 13; the elastic layer 41 is slidably connected to the inner wall of the sealing groove 13, and the multiple elastic elements 42 are arranged parallel and spaced apart, providing uniform support force for the elastic layer 41, so that the elastic layer 41 can better maintain its shape and maintain the sealing effect when subjected to pressure. Even if the nut 232 squeezes or rubs the elastic layer 41 during the movement, the elastic element 42 can also cause the elastic layer 41 to quickly return to its original shape without affecting the sliding of the nut 232, ensuring the reliability of the seal. Optionally, the elastic layer 41 is a rubber layer, a polyurethane foam layer, or a silicone layer. Optionally, the elastic element 42 is a spring.

[0039] Please see Figure 2 and Figure 7 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the variable space fire extinguishing test chamber also includes an auxiliary sliding component 5. The auxiliary sliding component 5 is disposed on the nut 232 and is used to limit the sliding direction of the nut 232. The auxiliary sliding component 5 can limit the nut 232 to slide only along the length direction of the elongated sliding hole 12, ensuring that the first baffle 21 and the second baffle 22 move in the predetermined longitudinal and transverse directions, thereby accurately changing the space size of the test chamber 11.

[0040] Please see Figure 2 and Figure 7As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the test chamber body 1 is provided with multiple limiting grooves 14, which are located on both sides of two elongated sliding holes 12, and the length of the multiple limiting grooves 14 is consistent with the length direction of the elongated sliding holes 12; the auxiliary sliding component 5 includes a guide plate 51 and a limiting flange 52; the guide plate 51 is fixed on the nut 232 and is located above the test chamber body 1; the limiting flange 52 is fixed on the guide plate 51 and is slidably connected to the limiting grooves 14; the slidable connection between the limiting flange 52 and the limiting grooves 14 provides precise guidance for the movement of the nut 232. By limiting the sliding direction of the nut 232, the shaking and offset of the nut 232 during the movement are reduced, making the entire space adjustment mechanism 2 more stable and reliable, thereby accurately adjusting the space size of the test chamber 11.

[0041] Please see Figure 1 and Figure 3 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the space monitoring module includes two displacement sensors 3. Both displacement sensors 3 are installed on the inner wall of the test chamber 1 and located within the test cavity 11. The two displacement sensors 3 are used to monitor the movement distance of the first baffle 21 and the second baffle 22, respectively. With the help of the displacement sensors 3, the movement distance of the first baffle 21 and the second baffle 22 can be monitored in real time and accurately. This provides accurate data for the test personnel, allowing them to precisely control the space size of the test cavity 11 based on the movement distance of the first baffle 21 and the second baffle 22, meeting the specific space requirements of different tests. The data measured by the displacement sensors 3 can be recorded and stored, facilitating data analysis by the test personnel after the test. By analyzing the relationship between the baffle movement distance and the test results, the test scheme and the design of the test cavity 11 can be further optimized, providing strong support for subsequent research and improvement.

[0042] Please see Figure 1 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the test chamber 1 is also equipped with a fire extinguishing agent monitoring module 6. The fire extinguishing agent monitoring module 6 is located on the second baffle 22 and is used to monitor the fire extinguishing data during the fire extinguishing test. During the fire extinguishing test, the fire extinguishing agent monitoring module 6 can monitor the fire extinguishing data in real time, which is crucial for accurately understanding the effect and status of the fire extinguishing agent during the fire extinguishing process and helps researchers to grasp the dynamic progress of the fire extinguishing test.

[0043] Not shown in the figure, as a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the variable space fire extinguishing test chamber also includes a control module. The control module is electrically connected to the motor, displacement sensor 3, and fire extinguishing agent monitoring module 6. The control module includes a controller and a display screen. The controller is electrically connected to the motor, displacement sensor 3, fire extinguishing agent monitoring module 6, and display screen. As a core component, the controller integrates components with different functions such as the motor, displacement sensor 3, and fire extinguishing agent monitoring module 6 to achieve centralized control of the entire test system. The controller is electrically connected to the display screen, which can display the monitored data in an intuitive way for easy viewing by test personnel.

[0044] Please see Figure 1 As a specific embodiment of the variable-space fire extinguishing test chamber provided by this utility model, the fire extinguishing agent monitoring module 6 includes a temperature sensor 61, a humidity sensor 62, a pressure sensor 63, and a gas sensor 64, which are used to monitor temperature changes, humidity changes, pressure changes, and gas changes within the test chamber 11, respectively. The temperature sensor 61 monitors temperature changes within the test chamber 11 to understand the spread of the fire and the fire extinguishing agent's suppression effect, thus directly reflecting the cooling effect of the fire extinguishing agent. The humidity sensor 62 monitors humidity changes within the test chamber 11 to analyze the interaction between the fire extinguishing agent and ambient humidity, and to assess the environmental recovery after fire extinguishing. The pressure sensor 63 monitors pressure changes within the test chamber 11 in real time, reflecting the spraying status of the fire extinguishing agent and the flow of gas within the test chamber 11, ensuring the safety and accuracy of the test. The gas sensor 64 detects changes in the composition and concentration of various gases within the test chamber 11 to determine whether the fire extinguishing agent is evenly distributed within the test chamber 11 and whether an effective fire extinguishing concentration has been reached.

[0045] Please see Figure 1 As a specific embodiment of the variable space fire extinguishing test chamber provided by this utility model, the test chamber 1 is provided with a switch door 7; the switch door 7 facilitates the test personnel to enter the test chamber 1 to place test samples, install and debug equipment, and carry out subsequent maintenance work.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable-space fire extinguishing test chamber, characterized in that, include: Test chamber; A space adjustment mechanism is installed inside the test chamber; the space adjustment mechanism includes a first baffle, a second baffle, and two adjustment components; the first baffle, the second baffle, and the inner wall of the test chamber surround to form a test chamber for testing fire extinguishing; the first baffle and the second baffle respectively have degrees of freedom to move along the longitudinal and transverse directions of the test chamber, and the first baffle and the second baffle are vertically arranged; there is a gap between the second baffle and the first baffle for the first baffle to move; the two adjustment components are respectively drivenly connected to the first baffle and the second baffle; A space monitoring module is installed inside the test chamber to monitor the size of the test chamber.

2. The variable space fire extinguishing test chamber as described in claim 1, characterized in that, The test chamber has two vertically arranged elongated sliding holes, which correspond to the first baffle and the second baffle, respectively. The adjustment component is a lead screw drive mechanism, with the lead screw located outside the elongated sliding hole and the nut located inside the elongated sliding hole. The lower end of the nut is connected to the corresponding first baffle or second baffle.

3. A variable-space fire extinguishing test chamber as described in claim 2, characterized in that, The elongated sliding hole is located on the top or bottom of the test chamber.

4. A variable-space fire extinguishing test chamber as described in claim 2, characterized in that, The elongated sliding hole is provided with two opposing elastic seals; the opposite ends of the two elastic seals are in contact with each other; the nut is located between the two elastic seals and is slidably connected to the elastic seals.

5. A variable-space fire extinguishing test chamber as described in claim 4, characterized in that, Sealing grooves are provided on both sides of the elongated sliding hole; the elastic sealing element includes an elastic layer and multiple elastic elements; one end of the elastic layer is disposed in the sealing groove and is slidably connected to the inner wall of the sealing groove; multiple elastic elements are disposed parallel to each other in the sealing groove, and their two ends are respectively connected to the elastic layer and the inner wall of the sealing groove.

6. A variable-space fire extinguishing test chamber as described in claim 2, characterized in that, The variable space fire extinguishing test chamber also includes an auxiliary sliding component, which is disposed on the nut and is used to limit the sliding direction of the nut.

7. A variable-space fire extinguishing test chamber as described in claim 6, characterized in that, The test chamber has multiple limiting grooves, which are located on both sides of the two elongated sliding holes, and the length of the multiple limiting grooves is consistent with the length direction of the elongated sliding holes; the auxiliary sliding assembly includes a guide plate and a limiting flange; the guide plate is fixed on the nut and located above the test chamber; the limiting flange is fixed on the guide plate and slidably connected to the limiting grooves.

8. A variable-space fire extinguishing test chamber as described in claim 1, characterized in that, The space monitoring module includes two displacement sensors, both of which are located on the inner wall of the test chamber and inside the test cavity. The two displacement sensors are used to monitor the movement distance of the first baffle and the second baffle, respectively.

9. A variable-space fire extinguishing test chamber as described in claim 1, characterized in that, The test chamber is also equipped with a fire extinguishing agent monitoring module, which is located on the second baffle and is used to monitor the fire extinguishing data during the fire extinguishing test.

10. A variable-space fire extinguishing test chamber as described in claim 9, characterized in that, The extinguishing agent monitoring module includes a temperature sensor, a humidity sensor, a pressure sensor, and a gas sensor, which are used to monitor temperature changes, humidity changes, pressure changes, and gas changes within the test chamber, respectively.

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