Fire mask air leakage prevention detection device with intelligent sensing element

Abstract

The invention relates to the technical field of air leakage prevention detection, and discloses a fire mask air leakage prevention detection device with an intelligent sensing element, which comprises a detection table, a fixed frame mounted on the detection table, a support frame mounted on the detection table, and a simulation human body model arranged on the support frame, according to the invention, a real use scene can be simulated, whether there is an air leakage phenomenon between the simulation human body model and the wearing mask can be detected through the micro piezoresistive pressure sensor, the dynamic condition of a fireman in actual operation is simulated, the sealing performance of the mask under various postures and actions can be detected more comprehensively and truly, and the working efficiency of the fireman is improved. And the pressing columns can make contact with the two sides of the wearing mask and extrude and stir the sealing and attaching positions of the wearing mask and the two sides of the simulation human body model, the comprehensiveness and reliability of the detection result are improved, and the comprehensiveness of air leakage prevention detection of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of air leakage detection technology, specifically to an air leakage detection device for fire masks with intelligent sensing elements. Background Technology

[0002] Traditional fire-fighting mask leak detection relies heavily on static constant pressure testing, which is difficult to simulate dynamic scenarios such as high temperatures and personnel movements in a fire. This can easily lead to the omission of dynamic sealing leaks. Furthermore, early detection methods often used a single sensor, which had low accuracy and could not locate local leaks, making it difficult to meet the high requirements for sealing reliability of fire-fighting masks.

[0003] Patent CN117848607B discloses a fire mask leak detection device, including a detection mold for mounting the fire mask. The detection mold supports the fire mask during testing. The bottom of the detection mold includes a support column. The detection device also includes a detection box for storing water. A first spraying mechanism and a second spraying mechanism are respectively arranged on both sides of the detection box. The first spraying mechanism is used to spray adhesive onto the surface of the detection mold, and the second spraying mechanism is used to spray quicklime onto the surface of the detection mold and bond it with adhesive. It also includes a flipping module, which drives the detection mold to flip towards the detection box and immerse it in water. If a fire mask leak is found during testing, the operator only needs to wipe off the chemical reaction substances on the surface of the detection mold and re-spray adhesive and quicklime before the next test. The operation is relatively convenient and the detection effect is more obvious.

[0004] However, when using the above-mentioned device, it is difficult to simultaneously squeeze and move both sides of the fire mask to simulate the wearer's adjustment movements under real-world conditions during the flipping process. This results in a decrease in the accuracy of the device's anti-leakage detection data for the fire mask, affecting the comprehensiveness and uniformity of subsequent fire mask inspections. Therefore, a fire mask anti-leakage detection device with intelligent sensing elements is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a fire mask leak detection device with intelligent sensing elements, which addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a fire mask leak-proof detection device with intelligent sensing elements, comprising a detection platform, a fixed frame mounted on the detection platform, a support frame mounted on the detection platform, a simulated human body model set on the support frame, a mask mounted on the simulated human body model, a reciprocating screw rotatably connected to the inner wall of the fixed frame, a T-block movably connected to the circumferential surface of the reciprocating screw, a rack fixedly connected to the front of the T-block, a gear fixedly connected to the circumferential surface of the simulated human body model, a stop block fixedly connected to the bottom of the simulated human body model, a guide arc rod mounted on the detection platform, and the inner wall of the support frame... An L-shaped rod is fixedly connected to the wall, and an elastic telescopic rod is fixedly connected to the inner wall of the L-shaped rod. A pressing column is fixedly connected to the telescopic end of the elastic telescopic rod, and a roller is rotatably connected to the inner wall of the pressing column. A motor is installed on the fixed frame, an air pump is installed on the detection platform, and a miniature piezoresistive pressure sensor is installed on the simulated human body model. This device can simulate real-world usage scenarios and detect whether there is air leakage between the simulated human body model and the mask worn, simulating the dynamic situation of firefighters in actual operations. It can more comprehensively and realistically detect the sealing performance of the mask under various postures and movements, improving the detection accuracy of the device for air leakage prevention of the mask.

[0007] Preferably, the top of the fixing frame is provided with a heating mechanism for heating the contact area of ​​the mask, and the inner wall of the heating mechanism is provided with a realistic mechanism for simulating the movement of the human jaw. The reciprocating screw is fixedly connected to the output end of the motor, the gear is located on the movement trajectory of the rack, and the gear is used to drive the simulated human body model to rotate. The first abutment is located on the movement trajectory of the T-block, and the T-block is used to push the first abutment to move and rotate. The T-block is slidably connected to the inner wall of the detection table. The pressing column will contact the two sides of the mask and squeeze and move the sealing contact area between the mask and the two sides of the simulated human body model. This can simulate the wearer manually pressing and moving the two sides of the mask during the wearing process, enabling dynamic detection, improving the comprehensiveness and reliability of the detection results, and improving the comprehensiveness of the device's leak detection.

[0008] Preferably, the guide arc rod is located on the movement trajectory of the roller, and the guide arc rod is used to push the roller to move by reverse compression. The pressing column is in contact with the L rod, and the pressing column is used to simulate the operation of the wearer adjusting the two sides of the mask. The mask is connected to the air pump. After the roller rotates at a certain angle, the roller will contact the guide arc rod. During the process of the roller contacting the arc surface of the guide arc rod, the roller will rotate to a certain extent due to friction. At the same time, the guide arc rod can push the roller to rise by reverse compression.

[0009] Preferably, the heating mechanism includes a support platform, which is fixedly connected to the top of the fixed frame. An electric slide rail is fixedly connected to the top of the support platform. A heating fan is installed at the moving end of the electric slide rail. A connecting block is fixedly connected to the circumferential surface of the electric slide rail. An electric telescopic rod is fixedly connected to the inner wall of the connecting block. A stop block is fixedly connected to the telescopic end of the electric telescopic rod. A fixed block is installed at the front of the electric slide rail. A heat-conducting plate is rotatably connected to the circumferential surface of the fixed block through a torsion spring. This allows the heat-conducting plate to concentrate and guide the hot air discharged by the heating fan to the sealing points on both sides of the face mask. This simulates a high-temperature environment, accelerates the aging of the sealing material, and further improves the accuracy of the device's detection of air leakage from the face mask.

[0010] Preferably, the heating mechanism further includes a connecting column, which is fixedly connected to the inner wall of the roller. An elastic telescopic rod II is fixedly connected to the circumferential surface of the connecting column, and a rubber block is fixedly connected to the telescopic end of the elastic telescopic rod II. This enables the device to perform leak detection on the breathing tube interface of the mask, thereby improving the comprehensiveness of the device's detection of the mask, increasing the efficiency of the leak detection, and saving detection costs.

[0011] Preferably, the second abutment is in contact with the heat-conducting plate, and the second abutment is used to control the rotation angle of the heat-conducting plate. The mask is located on the movement trajectory of the rubber block, and the rubber block is used to move the air tube of the mask. The rotation of the connecting column will drive the second elastic telescopic rod to rotate, and the rotation of the second elastic telescopic rod will drive the rubber block to rotate. After rotating a certain angle, the rubber block will contact the breathing tube interface of the mask and move the connecting air tube of the breathing tube interface.

[0012] Preferably, the simulation mechanism includes a fixed column, which is fixedly connected to the inner wall of the heat-conducting plate. A pull rod is rotatably connected to the circumferential surface of the fixed column, and a moving block is rotatably connected to the inner wall of the pull rod. A pressing block is fixedly connected to the circumferential surface of the moving block, so that the pressing block will contact the simulated human body model and squeeze the two sides of the simulated human body model, which can simulate the facial movements of the wearer when breathing heavily, improve the detection accuracy of the device, and better fit the real environment of use.

[0013] Preferably, the simulation mechanism further includes a fixing ring one, which is fixedly connected to the top of the T-block. A fixing ring two is fixedly installed on the wearing mask. An elastic rope is fixedly connected to the circumference of the fixing ring one, which can simulate the repeated stretching and wear of the headband. It can simulate the wear and tear of the headband when firefighters wear and remove it daily. After the elasticity of the headband decreases, a sealing test is performed. This can avoid the problem that the test results of the new headband are better than the actual use condition due to the high elasticity of the new headband, and improve the test accuracy.

[0014] Preferably, the elastic rope is fixedly connected to the circumferential surface of the second fixed ring, the simulated human body model is located on the movement trajectory of the pressing block, the movement of the T block will drive the first fixed ring to move, the movement of the first fixed ring will drive the elastic rope to move, and the movement of the elastic rope will drive the second fixed ring to move.

[0015] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This fire mask leak detection device with intelligent sensing elements, through the coordinated movement of a testing platform, fixing frame, support frame, simulated human body model, wearing mask, reciprocating screw, T-block, rack, gear, stop block one, guide arc rod, L-rod, elastic telescopic rod one, pressing column, and rollers, can simulate real-world usage scenarios. Simultaneously, a miniature piezoresistive pressure sensor can detect whether there is air leakage between the simulated human body model and the wearing mask, simulating the dynamic situation of firefighters in actual operation. This provides a more comprehensive and realistic test of the mask's sealing performance under various postures and movements, improving the device's accuracy in detecting leaks. The pressing column contacts and presses against both sides of the wearing mask, squeezing and adjusting the sealing area between the wearing mask and the simulated human body model, simulating the wearer manually pressing and adjusting the sides of the wearing mask during use. This dynamic detection improves the comprehensiveness and reliability of the test results, enhancing the overall leak detection capabilities of the device.

[0016] 2. This fire-fighting mask leak-proof detection device with intelligent sensing elements, through the coordinated movement of the support platform, electric slide rail, connecting block, electric telescopic rod, second stop block, fixing block, heat-conducting plate, connecting column, second elastic telescopic rod, and rubber block, enables the heat-conducting plate to concentrate and guide the hot air discharged from the heating fan. This concentrates the hot air to the sealing points on both sides of the mask, simulating a high-temperature environment and accelerating the aging of the sealing material. This further improves the accuracy of the device's leak-proof detection of the mask, and also detects leaks at the breathing duct interface of the mask. This enhances the comprehensiveness of the device's mask detection, increases its leak-proof detection efficiency, and saves on detection costs.

[0017] 3. This fire mask leak detection device with intelligent sensing elements, through the coordinated movement of fixed columns, pull rods, moving blocks, pressing blocks, fixing ring one, fixing ring two, and elastic ropes, causes the pressing blocks to contact and compress the sides of the simulated human body model. This simulates the facial movements of the wearer when taking deep breaths, improving the detection accuracy of the device and more closely reflecting the real-world environment. It can simulate the wear and tear caused by repeated stretching of the headband, as well as the wear and tear caused by firefighters wearing and removing the headband daily. After the headband's elasticity decreases, a sealing test is performed, avoiding the problem of test results being better than actual usage conditions due to the high elasticity of a new headband, thus improving detection accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fixing frame structure of the present invention; Figure 3 This is a schematic diagram of the reciprocating lead screw structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a schematic diagram of the heating mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of the structure at point B in the middle; Figure 7 For the present invention Figure 5 Enlarged view of the structure at point C; Figure 8 This is a schematic diagram of the simulation mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of the structure at point D; Figure 10 For the present invention Figure 8 Enlarged view of the structure at point E in the middle.

[0019] In the diagram: 1. Testing table; 2. Fixing frame; 3. Support frame; 4. Simulated human body model; 5. Wearing mask; 6. Heating mechanism; 7. Realistic mechanism; 8. Reciprocating screw; 9. T-block; 10. Rack; 11. Gear; 12. Abutment block one; 13. Guide arc rod; 14. L-bar; 15. Elastic telescopic rod one; 16. Pressing column; 17. Roller; 601. Support platform; 602. Electric slide rail; 603. Connecting block; 604. Electric telescopic rod; 605. Abutment block two; 606. Fixing block; 607. Heat-conducting plate; 608. Connecting column; 609. Elastic telescopic rod two; 610. Glue block; 701. Fixing column; 702. Pull rod; 703. Moving block; 704. Pressing block; 705. Fixing ring one; 706. Fixing ring two; 707. Elastic rope. 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] Please see Figures 1-10One embodiment of the present invention is: a fire-fighting mask leak-proof detection device with intelligent sensing elements, comprising a detection platform 1, a fixed frame 2 mounted on the detection platform 1, a support frame 3 mounted on the detection platform 1, a simulated human body model 4 disposed on the support frame 3, a mask 5 mounted on the simulated human body model 4, a reciprocating screw 8 rotatably connected to the inner wall of the fixed frame 2, a T-block 9 movably connected to the circumferential surface of the reciprocating screw 8, a rack 10 fixedly connected to the front part of the T-block 9, and the circumferential surface of the simulated human body model 4 fixed... A gear 11 is connected to the bottom of the simulated human body model 4, a stop block 12 is fixedly connected to the bottom of the model, a guide arc rod 13 is installed on the testing table 1, an L rod 14 is fixedly connected to the inner wall of the support frame 3, an elastic telescopic rod 15 is fixedly connected to the inner wall of the L rod 14, a pressing column 16 is fixedly connected to the telescopic end of the elastic telescopic rod 15, a roller 17 is rotatably connected to the inner wall of the pressing column 16, a motor is installed on the fixed frame 2, an air pump is installed on the testing table 1, and a miniature piezoresistive pressure sensor is installed on the simulated human body model 4. When the device is activated, the operator first puts the face mask 5 on the simulated human body model 4. After putting it on, the operator needs to connect the breathing tube interface of the face mask 5 to the air pump. The air pump starts and pumps air simultaneously, and the motor starts. The output end of the motor drives the reciprocating screw 8 to rotate. The rotation of the reciprocating screw 8 drives the T block 9 to rotate. However, at this time, the T block 9 slides on the inner wall of the testing table 1. The testing table 1 causes the T block 9 to move laterally back and forth through the reciprocating groove on the surface of the reciprocating screw 8 during the rotation of the reciprocating screw 8. The movement of the T block 9 drives the rack 10 to move. After moving a certain distance, the rack 10 will engage with the gear. When gear 11 contacts and meshes, the lateral movement of rack 10 will drive gear 11 to rotate. The rotation of gear 11 will drive the simulated human body model 4 to rotate and vibrate. The rotation and vibration of simulated human body model 4 will drive the mask 5 to move synchronously. The movement of gear 11 at this time can simulate the real use scenario. At the same time, the miniature piezoresistive pressure sensor can detect whether there is air leakage between simulated human body model 4 and mask 5, simulate the dynamic situation of firefighters in actual operation, and more comprehensively and realistically detect the sealing performance of the mask under various postures and movements, ensuring that the mask can always maintain a good air leakage prevention effect in actual use, and improving the detection accuracy of the device for air leakage prevention of mask 5. The top of the fixed frame 2 is equipped with a heating mechanism 6 for heating the contact area of ​​the mask 5. The inner wall of the heating mechanism 6 is equipped with a simulation mechanism 7 for simulating the movement of the human jaw. The reciprocating screw 8 is fixedly connected to the output end of the motor. The gear 11 is located on the movement trajectory of the rack 10 and is used to drive the simulated human body model 4 to rotate. The abutment block 12 is located on the movement trajectory of the T block 9 and is used to push the abutment block 12 to move and rotate. The T block 9 is slidably connected to the inner wall of the detection table 1. The guide arc rod 13 is located on the movement trajectory of the roller 17 and is used to push the roller 17 to move by reverse squeezing. The pressing column 16 is in contact with the L rod 14 and is used to simulate the operation of the wearer adjusting the sides of the mask. The mask 5 is connected to the air pump. When the device is in operation, during the reciprocating motion of T-block 9, the simulated human body model 4 synchronously drives L-bar 14 to move. The rotation of L-bar 14 causes the elastic telescopic rod 15 to rotate, which in turn causes the pressing column 16 to rotate. The rotation of the pressing column 16 causes the roller 17 to rotate. After rotating a certain angle, the roller 17 comes into contact with the guide arc rod 13. During the contact between the roller 17 and the arc surface of the guide arc rod 13, the roller 17 rotates due to friction. At the same time, the guide arc rod 13 can press in the opposite direction and... The roller 17 is pushed upward, which in turn drives the pressing column 16 upward. After moving a certain distance, the pressing column 16 contacts both sides of the face mask 5 and squeezes and moves the sealing joint between the face mask 5 and the simulated human body model 4. This can simulate the wearer manually pressing and moving the face mask 5 to adjust its sides during wear, enabling dynamic detection. This can supplement the shortcomings of static detection, evaluate the sealing performance of the face mask from multiple angles, improve the comprehensiveness and reliability of the test results, and enhance the comprehensiveness of the device's leak detection. Overall working principle: Simulating the dynamic situation of firefighters in actual operation, it more comprehensively and realistically tests the sealing performance of the mask under various postures and movements, ensuring that the mask can always maintain a good air leakage prevention effect in actual use, improving the detection accuracy of the device for air leakage prevention of the mask 5. It can simulate the wearer manually pressing and adjusting the sides of the mask 5 during the wearing process, and can perform dynamic detection, which can supplement the shortcomings of static detection. It evaluates the sealing performance of the mask from multiple angles, improves the comprehensiveness and reliability of the test results, and improves the comprehensiveness of the device's air leakage prevention detection.

[0022] Please see Figures 1-10Based on the above embodiments, in another embodiment of the present invention, the heating mechanism 6 includes a support platform 601, which is fixedly connected to the top of the fixed frame 2. An electric slide rail 602 is fixedly connected to the top of the support platform 601. A heating fan is installed at the moving end of the electric slide rail 602. A connecting block 603 is fixedly connected to the circumferential surface of the electric slide rail 602. An electric telescopic rod 604 is fixedly connected to the inner wall of the connecting block 603. A stop block 605 is fixedly connected to the telescopic end of the electric telescopic rod 604. A fixing block 606 is installed at the front of the electric slide rail 602. A heat-conducting plate 607 is rotatably connected to the circumferential surface of the fixing block 606 through a torsion spring. When the device performs dynamic detection, the electric slide rail 602 will be activated. The moving end of the electric slide rail 602 will drive the heating fan to move. During the movement, the heating fan will be activated to heat the contact area between the simulated human body model 4 and the mask 5. At the same time, when the heating fan moves to both sides of the mask 5, the electric telescopic rod 604 will be activated. The telescopic end of the electric telescopic rod 604 will drive the abutment block 605 to move. During the movement, the abutment block 605 will squeeze and push the heat conduction plate 607 to rotate. After rotating at a certain angle, the heat conduction plate 607 can concentrate and guide the hot air discharged by the heating fan to the sealing area on both sides of the mask 5. This can simulate a high-temperature environment, accelerate the aging of the sealing material, and further improve the realism of the device's detection of air leakage in the mask 5. The heating mechanism 6 also includes a connecting column 608, which is fixedly connected to the inner wall of the roller 17. An elastic telescopic rod 609 is fixedly connected to the circumferential surface of the connecting column 608. A rubber block 610 is fixedly connected to the telescopic end of the elastic telescopic rod 609. A stop block 605 contacts the heat-conducting plate 607 and is used to control the rotation angle of the heat-conducting plate 607. The mask 5 is located on the movement trajectory of the rubber block 610, and the rubber block 610 is used to move the air tube of the mask. As the roller 17 moves, it drives the connecting column 608 to move. Simultaneously, as the roller 17 rotates after contacting the guide arc rod 13, the rotation of the roller 17 drives the connecting column 608 to rotate. The rotation of the connecting column 608 drives the second elastic telescopic rod 609 to rotate, which in turn drives the rubber block 610 to rotate. After rotating a certain angle, the rubber block 610 contacts the breathing tube interface of the mask 5 and actuates the connecting tube of the breathing tube interface. This enables leak detection of the breathing tube interface of the mask 5, improving the comprehensiveness of the device's detection of the mask 5, increasing the efficiency of leak detection, and saving detection costs. The simulation mechanism 7 includes a fixed column 701, which is fixedly connected to the inner wall of the heat-conducting plate 607. A pull rod 702 is rotatably connected to the circumferential surface of the fixed column 701. A moving block 703 is rotatably connected to the inner wall of the pull rod 702. A pressing block 704 is fixedly connected to the circumferential surface of the moving block 703. As the heat-conducting plate 607 rotates, the rotation of the heat-conducting plate 607 will drive the fixed column 701 to move. The movement of the fixed column 701 will drive the pull rod 702 to move. During the movement, the pull rod 702 will change its angle synchronously. During the angle adjustment, the pull rod 702 will drive the moving block 703 to move. The movement of the moving block 703 will drive the pressing block 704 to move synchronously. After moving a certain distance, the pressing block 704 will contact the simulated human body model 4 and squeeze the sides of the simulated human body model 4. This can simulate the facial movements of the wearer when breathing heavily, improve the detection accuracy of the device, and better fit the real environment of use. The simulation mechanism 7 also includes a first fixing ring 705, which is fixedly connected to the top of the T block 9. A second fixing ring 706 is fixedly installed on the mask 5. An elastic rope 707 is fixedly connected to the circumferential surface of the first fixing ring 705. The elastic rope 707 is fixedly connected to the circumferential surface of the second fixing ring 706. The simulated human body model 4 is located on the movement trajectory of the pressing block 704. When the device is activated, during the reciprocating movement of T-block 9, the movement of T-block 9 will cause the fixed ring 705 to move, which in turn will cause the elastic rope 707 to move, which in turn will cause the fixed ring 706 to move. During the movement of fixed ring 706, fixed ring 706 can pull the headband of the mask 5, which can simulate the repeated stretching and wear of the headband. It can simulate the wear and tear on the headband when firefighters wear and remove it daily. After the headband elasticity decreases, a sealing test is performed. This can avoid the problem that the test results are better than the actual use condition due to the high elasticity of the new headband, thus improving the test accuracy.

[0023] Overall working principle: The heat-conducting plate 607 can concentrate and guide the hot air discharged from the heating fan to the sealing points on both sides of the face mask 5. It can simulate a high-temperature environment, accelerate the aging of the sealing material, and perform leak detection on the breathing tube interface of the face mask 5. This improves the comprehensiveness of the device's detection of the face mask 5, increases the efficiency of leak detection, and saves detection costs. It can also simulate the facial movements of the wearer when breathing heavily, improving the detection accuracy of the device and making it more in line with the real environment. Furthermore, it can simulate the wear and tear on the headband when firefighters wear and remove it daily. After the headband elasticity decreases, sealing detection is performed again, which avoids the problem of the detection results being better than the actual usage condition due to the high elasticity of the new headband, thus improving detection accuracy.

[0024] This invention provides a fire-fighting mask leak-proof detection device with intelligent sensing elements. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A fire-fighting mask leak-proof detection device with intelligent sensing elements, comprising a detection platform (1), characterized in that: A fixed frame (2) is installed on the testing platform (1), a support frame (3) is installed on the testing platform (1), a simulated human body model (4) is set on the support frame (3), a mask (5) is installed on the simulated human body model (4), a reciprocating screw (8) is rotatably connected to the inner wall of the fixed frame (2), a T-block (9) is movably connected to the circumferential surface of the reciprocating screw (8), a rack (10) is fixedly connected to the front of the T-block (9), a gear (11) is fixedly connected to the circumferential surface of the simulated human body model (4), and the bottom of the simulated human body model (4) is... A stop block (12) is fixedly connected to the part, a guide arc rod (13) is installed on the detection table (1), an L rod (14) is fixedly connected to the inner wall of the support frame (3), an elastic telescopic rod (15) is fixedly connected to the inner wall of the L rod (14), a pressing column (16) is fixedly connected to the telescopic end of the elastic telescopic rod (15), a roller (17) is rotatably connected to the inner wall of the pressing column (16), a motor is installed on the fixed frame (2), an air pump is installed on the detection table (1), and a miniature piezoresistive pressure sensor is installed on the simulated human body model (4).

2. The fire-fighting mask leak-proof detection device with intelligent sensing element according to claim 1, characterized in that: The top of the fixed frame (2) is provided with a heating mechanism (6) for heating the contact area of ​​the mask (5). The inner wall of the heating mechanism (6) is provided with a simulation mechanism (7) for simulating the movement of the human jaw. The reciprocating screw (8) is fixedly connected to the output end of the motor. The gear (11) is located on the movement trajectory of the rack (10) and is used to drive the simulated human body model (4) to rotate. The first abutment (12) is located on the movement trajectory of the T block (9) and is used to push the first abutment (12) to move and rotate. The T block (9) is slidably connected to the inner wall of the detection table (1).

3. A fire-fighting mask leak-proof detection device with intelligent sensing elements according to claim 2, characterized in that: The guide arc rod (13) is located on the movement trajectory of the roller (17), and the guide arc rod (13) is used to push the roller (17) to move by reverse squeezing. The pressing column (16) is in contact with the L rod (14), and the pressing column (16) is used to simulate the operation of the wearer adjusting the two sides of the mask. The wearing mask (5) is connected to the air pump.

4. A fire-fighting mask leak-proof detection device with intelligent sensing elements according to claim 3, characterized in that: The heating mechanism (6) includes a support platform (601), which is fixedly connected to the top of the fixed frame (2). An electric slide rail (602) is fixedly connected to the top of the support platform (601). A heating fan is installed at the moving end of the electric slide rail (602). A connecting block (603) is fixedly connected to the circumferential surface of the electric slide rail (602). An electric telescopic rod (604) is fixedly connected to the inner wall of the connecting block (603). A stop block (605) is fixedly connected to the telescopic end of the electric telescopic rod (604). A fixing block (606) is installed at the front of the electric slide rail (602). A heat-conducting plate (607) is rotatably connected to the circumferential surface of the fixing block (606) by a torsion spring.

5. A fire-fighting mask leak detection device with intelligent sensing elements according to claim 4, characterized in that: The heating mechanism (6) also includes a connecting column (608), which is fixedly connected to the inner wall of the roller (17). An elastic telescopic rod (609) is fixedly connected to the circumferential surface of the connecting column (608), and a rubber block (610) is fixedly connected to the telescopic end of the elastic telescopic rod (609).

6. A fire-fighting mask leak-proof detection device with intelligent sensing elements according to claim 5, characterized in that: The second abutment (605) contacts the heat-conducting plate (607), and the second abutment (605) is used to control the rotation angle of the heat-conducting plate (607). The face mask (5) is located on the movement trajectory of the rubber block (610), and the rubber block (610) is used to move the air tube of the face mask.

7. A fire-fighting mask leak-proof detection device with intelligent sensing elements according to claim 6, characterized in that: The simulation mechanism (7) includes a fixed column (701), which is fixedly connected to the inner wall of the heat-conducting plate (607). A pull rod (702) is rotatably connected to the circumferential surface of the fixed column (701). A moving block (703) is rotatably connected to the inner wall of the pull rod (702). A pressing block (704) is fixedly connected to the circumferential surface of the moving block (703).

8. A fire-fighting mask leak-proof detection device with intelligent sensing elements according to claim 7, characterized in that: The simulation mechanism (7) also includes a fixing ring one (705), which is fixedly connected to the top of the T block (9). A fixing ring two (706) is fixedly installed on the mask (5), and an elastic rope (707) is fixedly connected to the circumferential surface of the fixing ring one (705).

9. A fire-fighting mask leak-proof detection device with intelligent sensing elements according to claim 8, characterized in that: The elastic rope (707) is fixedly connected to the circumferential surface of the fixed ring (706), and the simulated human body model (4) is located on the movement trajectory of the pressing block (704).

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