A flame retardant performance testing device and method for protective clothing

Abstract

The present invention discloses a flame retardant performance testing device and method for protective clothing, which belongs to the technical field of protective clothing performance testing, and comprises a sealing cover A and a sealing cover B, wherein the sealing cover B and the sealing cover A are hingedly connected by hinges, and the bottoms of the sealing covers A and B are provided with flame retardant testing components. In the present invention, as the temperature inside the sealing covers A and B increases, the temperature inside the human model gradually increases, the clean water absorbed by the lining cotton pad is gradually evaporated, and the water vapor generated by the evaporation flows out through the capillaries, and by pouring clean water close to the human body temperature into the human model, it is helpful to simulate the speed of sweat generated by the firefighters at the fire scene due to heat, and the water vapor flowing out through the capillaries acts on the protective clothing to be tested and is gradually evaporated for a second time, and in this process, the protective clothing can be cooled to a certain extent, and compared with the traditional flame retardant testing technology, the flame retardant performance of the protective clothing to be tested in practical applications can be detected to a certain extent.

Description

Technical Field

[0001] The invention belongs to the technical field of protective clothing performance testing, and in particular relates to a protective clothing flame retardant performance testing device and a method thereof. Background Art

[0002] The test methods for protective clothing can be roughly divided into three categories: vertical, 45-degree angle and horizontal. These test methods help to evaluate and compare the flame retardant properties of textiles used for protective clothing. The test methods for protective clothing include testing the flame retardant properties of fabrics, which needs to be done before and after washing. Test indicators include afterflame time, smoldering time, damaged length, melting and dripping, etc.

[0003] The prior art discloses some invention patents in the field of protective clothing performance testing technology, among which the invention patent with application number CN202410536601.8 discloses a flame retardant performance testing device for protective clothing, which belongs to the field of protective clothing performance testing technology. An open test box is provided on one side wall, and a box door is hinged at the open position. A rotatable placement rack is provided in the test box, and vertical gas pipes are provided on both side walls of the test box. Gas nozzles are evenly provided in the vertical direction on the side where the two gas pipes are close to each other, and an igniter is also provided in the test box, and the gas pipe is connected to an external gas source; the placement rack includes a hollow column, and diagonal braces are provided on the tops of both side walls of the column, and a plurality of hollow cross braces are provided on both side walls of the column, and the cross braces are connected to the column The end of the cross brace away from the column is movably provided with a movable rod; the present invention can fix and unfold protective clothing jackets of different sizes, reduce production costs, improve the comprehensiveness of the test, and ensure the accuracy of the test results. The technical scheme still has some shortcomings in the process of application. The flame retardant test of protective clothing still adopts the traditional static testing technology method, and it is not possible to test the ultimate flame retardant performance of protective clothing, that is, the flame retardant performance of protective clothing when firefighters wear protective clothing in the process of working at the fire scene, the air flow rate and air flow direction at the fire scene and the sweat generated by the firefighters will affect the flame retardant performance of the protective clothing. By performing extreme tests on the protective clothing, more data values ​​can be provided for the use of the protective clothing, and the firefighters can flexibly respond according to the obtained data values ​​at the fire scene.

[0004] Based on this, the present invention designs a flame retardant performance testing device and method for protective clothing to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the flame retardant test of protective clothing still adopts the traditional static testing technology method, which fails to test the ultimate flame retardant performance of the protective clothing, that is, the flame retardant performance of the protective clothing when the firefighters wear the protective clothing in the process of working at the fire scene, the air flow rate and air flow direction at the fire scene and the sweat generated by the firefighters will affect the flame retardant performance of the protective clothing, and a flame retardant performance testing device and method for protective clothing are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A flame retardant performance testing device for protective clothing, comprising a sealing cover A and a sealing cover B, wherein the sealing cover B and the sealing cover A are hingedly connected by hinges, and a flame retardant testing assembly is arranged at the bottom of the sealing cover A and the sealing cover B, and multiple gas injection heads of the flame retardant testing assembly inject flames into the inner sides of the sealing cover B and the sealing cover A to simulate a fire environment;

[0008] A human body simulation component is connected to the support of the flame retardant test component, and the human body simulation component includes a support rod connected to the support, and the other end of the support rod is connected to a human body model for wearing protective clothing, and a water injection port is provided on the top of the human body model, and a water injection head is clamped in the water injection port, and a plurality of shunt pipes are connected to the circumferential surface of the bottom of the water injection head, and the inner surface of the human body model is filled with a lining cotton pad, and the other end of the shunt pipe is embedded in the lining cotton pad, and the surface of the human body model is provided with capillary pores, and the lining cotton pad is heated and evaporated through the capillary pores to act on the protective clothing.

[0009] As a further description of the above technical solution:

[0010] The support member includes a support platform A and a support platform B that are butt-connected, the bottoms of the support platforms B and A are connected to a base for supporting, the inner wall of the support platform A is connected to a telescopic sleeve, a telescopic rod is sleeved in the telescopic sleeve, and the other end of the telescopic rod is connected to the inner wall of the support platform B;

[0011] The inner wall of the support platform A is connected with a threaded barrel, the inner thread of the threaded barrel is connected with a threaded rod, and the outer wall of the support platform B is provided with a transfer hole corresponding to the threaded rod, and the other end of the threaded rod is rotatably connected to the transfer hole;

[0012] The support rod is connected to the support platform B and is used to move the human model to wear the protective clothing.

[0013] As a further description of the above technical solution:

[0014] The support platform A and the support platform B are both provided with a plurality of gas injection holes, and a plurality of gas injection heads are respectively clamped in the plurality of gas injection holes, and a pulse igniter is installed on the gas injection heads;

[0015] The support platform A is connected to a gas pipe at the outside, the other end of the gas pipe is connected to a gas tank, and a gas valve is arranged on the gas tank.

[0016] As a further description of the above technical solution:

[0017] The human body model is embedded with a limb driving component, which is used to drive the human body model to simulate human limb movements. The limb driving component includes a driving member, and the driving member includes a connecting shaft A. The connecting shaft A is provided with a plurality of sliding holes, and a sliding rod A is sleeved in the sliding holes. The end of the sliding rod A is connected to the inner wall of the human body model;

[0018] An adapter A is rotatably connected to the connecting shaft A, the other end of the adapter A is connected to a hydraulic cylinder, the other end of the hydraulic cylinder is connected to an adapter frame, the inner side of the adapter frame is rotatably connected to an adapter B, the other end of the adapter B is connected to the inner wall of the human body model, and the two ends of the connecting shaft A are respectively rotatably connected to a leg power part A and an arm power part A.

[0019] As a further description of the above technical solution:

[0020] The limb drive assembly also includes a transmission member, which includes a toothed panel A connected to a connecting shaft A, a reverse gear connected to the inner wall of the human body model is meshed below the toothed panel A, a toothed panel B is meshed below the reverse gear, a slide groove is provided on the end surface of the toothed panel B, a slide rod B connected to the inner wall of the human body model is sleeved in the slide groove, an adapter sleeve B is connected to the other end surface of the toothed panel B, a connecting shaft B is rotatably connected to the inner side of the adapter sleeve B, and an arm power member B and a leg power member B are rotatably connected to the connecting shaft B respectively.

[0021] As a further description of the above technical solution:

[0022] The leg power part B, the arm power part B, and the arm power part A have the same structure as the leg power part A. The leg power part A includes an adapter sleeve A rotatably connected to the connecting shaft A, a driving sleeve is connected below the adapter sleeve A, a driving rod is sleeved in the other end of the driving sleeve, and the other end of the driving rod is connected to a joint sleeve head connected to the thigh joint of the human body model.

[0023] As a further description of the above technical solution:

[0024] The sealing cover A and the sealing cover B are both provided with a transfer port at the top, and the sealing cover A is rotatably connected to a blowing assembly for simulating the ventilation environment of a fire disaster area through the transfer port, and the blowing assembly includes a rotating disk rotatably connected to the transfer port, and a blowing head is clamped on the inner side of the rotating disk corresponding to a plurality of gas injection heads, and a blast pipe is rotatably connected to the blowing head;

[0025] The rotating disk is connected with a tooth surface ring, the tooth surface ring is meshed with a driving gear, the outer wall of the sealing cover A is installed with a motor, and the driving gear is sleeved on the motor.

[0026] A method for testing flame retardant properties of protective clothing, comprising the following steps:

[0027] Before conducting a flame retardant test on the protective clothing, the protective clothing to be tested must be worn on the human model, the sealing cover B is opened first, and then the threaded rod is twisted until the threaded rod is separated from the threaded tube, and then the support platform B is pulled. During the pulling process of the support platform B, its bottom slides on the base. During this process, the support platform B also stretches in multiple telescopic sleeves through multiple telescopic rods to ensure the basic stability of the support platform B and the human model connected thereto. After the human model is removed from the sealing cover A, the protective clothing to be tested is first worn on the human model, and then clean water close to human body temperature is poured into the water injection head. The clean water entering the water injection head is diverted by multiple diversion pipes and quickly soaks into the lining cotton pad;

[0028] After completing the wearing of the protective clothing to be tested and the water injection operation, first push the support platform B until it is connected with the support platform A. At this stage, it is also necessary to twist the threaded rod to make it threadedly connected with the threaded cylinder to ensure the basic stability of the human model in the sealing cover A and the sealing cover B, and then close the sealing cover B;

[0029] The gas valve is opened, and the gas in the gas pipe enters the support platform A and the support platform B through the gas pipe. The gas flowing into the support platform B and the support platform A is ejected through multiple gas injection heads, triggering the pulse igniter. The pulse igniter emits an electric spark to ignite the gas ejected from the gas injection head to generate flames. The flames ejected from the multiple gas injection heads surround multiple positions of the human body model.

[0030] The hydraulic cylinder is controlled to perform reciprocating telescopic motion. One end of the hydraulic cylinder rotates around the adapter B through the adapter frame, and the other end rotates around the connecting shaft A through the adapter A, and a thrust or a pull is applied to the connecting shaft A through the adapter A. The connecting shaft A slides on the slide rod A, and at the same time, the two ends will respectively drive the leg power part A and the arm power part A. In this process, the connecting shaft A will also drive the toothed plate A to move synchronously. The toothed plate A causes the reverse gear to rotate, and the reverse gear pushes the toothed plate B in the reverse direction. The toothed plate B slides on the slide rod B through the slide groove. At the same time, the toothed plate B also drives the connecting shaft B to move synchronously through the adapter sleeve B. The two ends of the connecting shaft B respectively drive the leg power part B and the arm power part B. During the movement of the adapter sleeve A, on the one hand, it rotates around the connecting shaft A or the connecting shaft B connected thereto, and on the other hand, a torque is applied to the thigh or arm joint of the human model through the drive sleeve, the drive rod and the joint sleeve. The drive rod will also perform corresponding telescopic motion in the drive sleeve, thereby enabling the two thigh joints and the two arm joints of the human model to perform corresponding swinging motions at the same time;

[0031] The motor is controlled to run, the motor drives the driving gear, the driving gear drives the tooth surface ring, the tooth surface ring drives the rotating disk to rotate, and the rotating disk drives the blowing head to make a circular motion, which is used to simulate the air flow state at the fire scene in the sealing cover A and the sealing cover B, and control the wind pressure input into the blast pipe to control the simulated air flow velocity. By simulating the air flow velocity and air flow direction, it is easy to simulate the air flow velocity and air flow direction for the drying speed of the steam absorbed by the protective clothing to be tested.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] 1. In the present invention, as the temperature inside the sealing cover A and the sealing cover B increases, the temperature inside the human body model gradually rises, the clean water absorbed by the lining cotton pad is gradually evaporated, and the water vapor generated by the evaporation flows out through the capillaries. By pouring clean water close to the human body temperature into the human body model, it is helpful to simulate the speed at which the firefighters produce sweat due to heat at the fire scene. The water vapor flowing out through the capillaries acts on the protective clothing to be tested and is gradually evaporated again. In this process, the protective clothing can be cooled to a certain extent, and the flame retardant performance of the protective clothing to be tested can be improved. Compared with the traditional flame retardant testing technology, the flame retardant performance of the protective clothing to be tested in actual application can be detected to a certain extent, which is conducive to the firefighters to perform extreme operations in a fire environment.

[0034] 2. In the present invention, the two thigh joints and two arm joints of the human body model are made to perform corresponding swinging movements to simulate the swinging of the limbs of the human body when walking normally. The swinging of the limbs of the human body model can accelerate the flow of air around the protective clothing to be tested, which is conducive to further testing the extreme performance of the protective clothing to be tested.

[0035] 3. In the present invention, the motor is controlled to run, the motor drives the driving gear, the driving gear drives the toothed ring, the toothed ring drives the rotating disk to rotate, and the rotating disk drives the blowing head to make a circular motion, which is used to simulate the air flow state at the fire scene in the sealing cover A and the sealing cover B, and control the wind pressure input into the blast pipe to control the simulated air flow velocity. By simulating the air flow velocity and air flow direction, it is convenient to simulate the air flow velocity and air flow direction for the drying speed of the steam absorbed by the protective clothing to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the overall structure of a flame retardant performance testing device and method for protective clothing proposed by the present invention;

[0037] Figure 2 This is a schematic structural diagram of a flame retardant test component in a flame retardant performance test device and method for protective clothing proposed in the present invention;

[0038] Figure 3 This is a structural schematic diagram of a flame retardant test component in a flame retardant performance test device and method for protective clothing proposed by the present invention;

[0039] Figure 4 This is a schematic structural diagram of a blowing component in a flame retardant performance testing device and method for protective clothing proposed in the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the limb drive component of a flame retardant performance testing device and method for protective clothing proposed by the present invention;

[0041] Figure 6 A flame retardant performance testing device and method for protective clothing proposed by the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0042] Figure 7 This is a structural schematic diagram of the blowing component of a protective clothing flame retardant performance testing device and method proposed by the present invention from another perspective.

[0043] Legend:

[0044] 1. Sealing cover A; 2. Sealing cover B; 3. Flame retardant test assembly; 301. Support; 3011. Support platform A; 3012. Support platform B; 3013. Telescopic sleeve; 3014. Telescopic rod; 3015. Threaded barrel; 3016. Threaded rod; 302. Gas injection head; 303. Pulse igniter; 304. Gas pipe; 305. Gas tank; 4. Human body simulation assembly; 401. Support rod; 402. Human body model; 403. Lined cotton pad; 404. Water injection head; 405. Diverter; 5. Limb drive assembly; 501. Drive member; 5011. Connecting shaft A; 5012. Sliding rod A; 5013. Adapter A; 5014 , hydraulic cylinder; 5015, adapter frame; 5016, adapter B; 502, leg power part A; 5021, adapter sleeve A; 5022, drive sleeve; 5023, drive rod; 5024, joint sleeve; 503, arm power part A; 504, transmission part; 5041, tooth panel A; 5042, tooth panel B; 5043, reverse gear; 5044, adapter sleeve B; 5045, connecting shaft B; 505, arm power part B; 506, leg power part B; 6, blowing assembly; 601, rotating disk; 602, tooth surface ring; 603, drive gear; 604, blowing head; 605, blast pipe; 606, motor; 7, base. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Please see attached Figure 1 -Attached Figure 7 The present invention provides a technical solution: a flame retardant performance testing device for protective clothing, comprising a sealing cover A1 and a sealing cover B2, wherein the sealing cover B2 and the sealing cover A1 are hingedly connected, and a flame retardant testing component 3 is arranged at the bottom of the sealing cover A1 and the sealing cover B2, and a plurality of gas injection heads 302 of the flame retardant testing component 3 inject flames to the inner side of the sealing cover B2 and the sealing cover A1 to simulate a fire environment;

[0047] A human body simulation component 4 is connected to the support member 301 of the flame retardant test component 3. The human body simulation component 4 includes a support rod 401 connected to the support member 301. The other end of the support rod 401 is connected to a human body model 402 for wearing protective clothing. A water injection port is provided on the top of the human body model 402. A water injection head 404 is clamped in the water injection port. A plurality of shunt pipes 405 are connected to the circumferential surface of the bottom of the water injection head 404. The inner surface of the human body model 402 is filled with a lining cotton pad 403. The other end of the shunt pipe 405 is embedded in the lining cotton pad 403. Capillaries are provided on the surface of the human body model 402. The heated water vaporizes from the lining cotton pad 403 and acts on the protective clothing through the capillaries.

[0048] Specifically, the support member 301 includes a support platform A3011 and a support platform B3012 that are butt-connected. The bottoms of the support platforms B3012 and A3011 are connected with a base 7 for supporting. The inner wall of the support platform A3011 is connected with a telescopic sleeve 3013. The telescopic sleeve 3013 is sleeved with a telescopic rod 3014. The other end of the telescopic rod 3014 is connected to the inner wall of the support platform B3012.

[0049] The inner wall of the support platform A3011 is connected with a threaded cylinder 3015, the inner thread of the threaded cylinder 3015 is connected with a threaded rod 3016, and the outer wall of the support platform B3012 is provided with a transfer hole corresponding to the threaded rod 3016, and the other end of the threaded rod 3016 is rotatably connected to the transfer hole;

[0050] The support rod 401 is connected to the support platform B3012 and is used to move the human model 402 to wear protective clothing.

[0051] Specifically, a plurality of gas injection holes are provided on the support platform A3011 and the support platform B3012, and a plurality of gas injection heads 302 are respectively connected to the plurality of gas injection holes, and a pulse igniter 303 is installed on the gas injection heads 302;

[0052] The support platform A3011 is connected to a gas pipe 304 , and the other end of the gas pipe 304 is connected to a gas tank 305 , on which a gas valve is provided.

[0053] Specifically, a limb driving component 5 is embedded in the human body model 402, which is used to drive the human body model 402 to simulate human limb movements. The limb driving component 5 includes a driving member 501, and the driving member 501 includes a connecting shaft A5011. The connecting shaft A5011 is provided with a plurality of sliding holes, and a sliding rod A5012 is sleeved in the sliding holes. The end of the sliding rod A5012 is connected to the inner wall of the human body model 402;

[0054] An adapter A5013 is rotatably connected to the connecting shaft A5011, the other end of which is connected to a hydraulic cylinder 5014, the other end of which is connected to an adapter frame 5015, the inner side of the adapter frame 5015 is rotatably connected to an adapter B5016, the other end of which is connected to the inner wall of the human body model 402, and the two ends of the connecting shaft A5011 are rotatably connected to a leg power component A502 and an arm power component A503 respectively.

[0055] Specifically, the limb drive assembly 5 also includes a transmission member 504, which includes a toothed panel A5041 connected to the connecting shaft A5011, a reverse gear 5043 connected to the inner wall of the human body model 402 is meshed under the toothed panel A5041, a toothed panel B5042 is meshed under the reverse gear 5043, a slide groove is provided on the end face of the toothed panel B5042, a slide rod B connected to the inner wall of the human body model 402 is sleeved in the slide groove, the other end face of the toothed panel B5042 is connected to an adapter sleeve B5044, the inner side of the adapter sleeve B5044 is rotatably connected to a connecting shaft B5045, and the connecting shaft B5045 is rotatably connected to an arm power member B505 and a leg power member B506 respectively.

[0056] Specifically, the leg power component B506, the arm power component B505, and the arm power component A503 have the same structure as the leg power component A502. The leg power component A502 includes an adapter sleeve A5021 rotatably connected to the connecting shaft A5011, and a drive sleeve 5022 is connected under the adapter sleeve A5021. A drive rod 5023 is sleeved in the other end of the drive sleeve 5022, and the other end of the drive rod 5023 is connected to a joint sleeve head 5024 connected to the thigh joint of the human body model 402.

[0057] Specifically, the tops of the sealing cover A1 and the sealing cover B2 are both provided with an adapter, and the sealing cover A1 is rotatably connected to a blowing assembly 6 for simulating the ventilation environment of the fire disaster area through the adapter, and the blowing assembly 6 includes a rotating disk 601 rotatably connected to the adapter, and a blowing head 604 is clamped on the inner side of the rotating disk 601 corresponding to the multiple gas injection heads 302, and a blast pipe 605 is rotatably connected to the blowing head 604;

[0058] The rotating disk 601 is connected with a toothed ring 602 , and a driving gear 603 is meshed with the toothed ring 602 . A motor 606 is installed on the outer wall of the sealing cover A1 , and the driving gear 603 is sleeved on the motor 606 .

[0059] A method for testing flame retardant properties of protective clothing, comprising the following steps:

[0060] Before the flame retardant test of the protective clothing is conducted, the protective clothing to be tested must be worn on the human body model 402, the sealing cover B2 is opened first, and then the threaded rod 3016 is twisted until the threaded rod 3016 is disengaged from the threaded tube 3015, and then the support platform B3012 is pulled. During the pulling process of the support platform B3012, its bottom slides on the base 7. During this process, the support platform B3012 also stretches in multiple telescopic sleeves 3013 through multiple telescopic rods 3014 to ensure the basic stability of the support platform B3012 and the human body model 402 connected thereto. After the human body model 402 is removed from the sealing cover A1, the protective clothing to be tested is first worn on the human body model 402, and then clean water close to human body temperature is poured into the water injection head 404. The clean water entering the water injection head 404 is diverted by multiple diversion pipes 405 and then quickly immersed in the lining cotton pad 403;

[0061] After completing the wearing and water injection of the protective clothing to be tested, first push the support platform B3012 until it is connected with the support platform A3011. At this stage, the threaded rod 3016 needs to be twisted to make it threadedly connected with the threaded cylinder 3015 to ensure the basic stability of the human model 402 in the sealing cover A1 and the sealing cover B2, and then close the sealing cover B2;

[0062] The gas valve is opened, and the gas in the gas pipe 304 enters the support platform A3011 and the support platform B3012 through the gas pipe 304. The gas flowing into the support platform B3012 and the support platform A3011 is ejected through the multiple gas injection heads 302, triggering the pulse igniter 303. The pulse igniter 303 emits an electric spark to ignite the gas ejected from the gas injection head 302 to generate a flame. The flames ejected from the multiple gas injection heads 302 surround the human body model 402 in multiple directions.

[0063] The hydraulic cylinder 5014 is controlled to perform reciprocating telescopic motion. One end of the hydraulic cylinder 5014 rotates around the adapter B5016 through the adapter frame 5015, and the other end rotates around the connecting shaft A5011 through the adapter A5013, and a thrust or a pull is applied to the connecting shaft A5011 through the adapter A5013. The connecting shaft A5011 slides on the slide bar A5012. At the same time, the two ends will also drive the leg power part A502 and the arm power part A503 respectively. In this process, the connecting shaft A5011 will also drive the tooth panel A5041 to move synchronously. The tooth panel A5041 rotates the reverse gear 5043, and the reverse gear 5043 pushes the tooth panel B5042 in the reverse direction. The tooth panel B5042 passes through the slide groove on the slide The toothed panel B5042 also drives the connecting shaft B5045 to move synchronously through the adapter sleeve B5044. The two ends of the connecting shaft B5045 drive the leg power part B506 and the arm power part B505 respectively. During the movement of the adapter sleeve A5021, on the one hand, it rotates around the connecting shaft A5011 or the connecting shaft B5045 connected thereto. On the other hand, the driving sleeve 5022, the driving rod 5023 and the joint sleeve apply a torque to the thigh or arm joint of the human model 402. The driving rod 5023 also performs a corresponding telescopic movement in the driving sleeve 5022, thereby enabling the two thigh joints and the two arm joints of the human model 402 to perform corresponding swinging movements at the same time.

[0064] The motor 606 is controlled to run, the motor 606 drives the driving gear 603, the driving gear 603 drives the toothed ring 602, the toothed ring 602 drives the rotating disk 601 to rotate, and the rotating disk 601 drives the blowing head 604 to make a circular motion, which is used to simulate the air flow state at the fire scene in the sealing cover A1 and the sealing cover B2, and control the wind pressure input into the blower pipe 605 to control the simulated air flow velocity. By simulating the air flow velocity and air flow direction, it is convenient to simulate the air flow velocity and air flow direction for the drying speed of the steam absorbed by the protective clothing to be tested.

[0065] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flame retardant performance testing device for protective clothing, comprising a sealing cover A (1) and a sealing cover B (2), wherein the sealing cover B (2) and the sealing cover A (1) are hingedly connected by a hinge, characterized in that: A flame retardant test assembly (3) is provided at the bottom of the sealing cover A (1) and the sealing cover B (2), and a plurality of gas injection heads (302) of the flame retardant test assembly (3) inject flames toward the inside of the sealing cover B (2) and the sealing cover A (1) to simulate a fire environment; A human body simulation component (4) is connected to the support member (301) of the flame retardant test component (3), the human body simulation component (4) comprising a support rod (401) connected to the support member (301), the other end of the support rod (401) being connected to a human body model (402) for wearing protective clothing, a water injection port being provided at the top of the human body model (402), a water injection head (404) being clamped in the water injection port, a plurality of shunt pipes (405) being connected to the circumferential surface of the bottom of the water injection head (404), the inner surface of the human body model (402) being filled with an inner lining cotton pad (403), the other end of the shunt pipe (405) being embedded in the inner lining cotton pad (403), the surface of the human body model (402) being provided with capillary pores, and the hot water vaporized from the inner lining cotton pad (403) acts on the protective clothing through the capillary pores.

2. A flame retardant performance testing device for protective clothing according to claim 1, characterized in that: The support member (301) comprises a support platform A (3011) and a support platform B (3012) which are butt-connected, the bottoms of the support platform B (3012) and the support platform A (3011) are connected to a base (7) for supporting, the inner wall of the support platform A (3011) is connected to a telescopic sleeve (3013), a telescopic rod (3014) is sleeved inside the telescopic sleeve (3013), and the other end of the telescopic rod (3014) is connected to the inner wall of the support platform B (3012); The inner wall of the support platform A (3011) is connected to a threaded cylinder (3015), the inner thread of the threaded cylinder (3015) is connected to a threaded rod (3016), and the outer wall of the support platform B (3012) is provided with a transfer hole corresponding to the threaded rod (3016), and the other end of the threaded rod (3016) is rotatably connected to the transfer hole; The support rod (401) is connected to the support platform B (3012) and is used to move the human model (402) to wear protective clothing.

3. A flame retardant performance testing device for protective clothing according to claim 2, characterized in that: The support platform A (3011) and the support platform B (3012) are both provided with a plurality of gas injection holes, the plurality of gas injection heads (302) are respectively clamped in the plurality of gas injection holes, and the gas injection heads (302) are each installed with a pulse igniter (303); The support platform A (3011) is externally connected to a gas pipe (304), the other end of the gas pipe (304) is connected to a gas tank (305), and a gas valve is provided on the gas tank (305).

4. A flame retardant performance testing device for protective clothing according to claim 3, characterized in that: The human body model (402) is embedded with a limb driving component (5) for driving the human body model (402) to simulate human limb movements, the limb driving component (5) comprising a driving member (501), the driving member (501) comprising a connecting shaft A (5011), a plurality of sliding holes being formed on the connecting shaft A (5011), a sliding rod A (5012) being sleeved in the sliding holes, and an end of the sliding rod A (5012) being connected to an inner wall of the human body model (402); An adapter A (5013) is rotatably connected to the connecting shaft A (5011), the other end of the adapter A (5013) is connected to a hydraulic cylinder (5014), the other end of the hydraulic cylinder (5014) is connected to an adapter frame (5015), an adapter B (5016) is rotatably connected to the inner side of the adapter frame (5015), the other end of the adapter B (5016) is connected to the inner wall of the human body model (402), and the two ends of the connecting shaft A (5011) are rotatably connected to a leg power part A (502) and an arm power part A (503), respectively.

5. A flame retardant performance testing device for protective clothing according to claim 4, characterized in that: The limb driving assembly (5) further comprises a transmission member (504), wherein the transmission member (504) comprises a toothed panel A (5041) connected to a connecting shaft A (5011), wherein a reverse gear (5043) connected to the inner wall of the human model (402) is meshed below the toothed panel A (5041), wherein a toothed panel B (5042) is meshed below the reverse gear (5043), wherein a sliding groove is provided on the end surface of the toothed panel B (5042), wherein a sliding rod B connected to the inner wall of the human model (402) is sleeved in the sliding groove, wherein an adapter sleeve B (5044) is connected to the other end surface of the toothed panel B (5042), wherein a connecting shaft B (5045) is rotatably connected to the inner side of the connecting shaft B (5045), wherein an arm power member B (505) and a leg power member B (506) are rotatably connected to the connecting shaft B (5045).

6. A flame retardant performance testing device for protective clothing according to claim 5, characterized in that: The leg power member B (506), the arm power member B (505), and the arm power member A (503) have the same structure as the leg power member A (502). The leg power member A (502) comprises an adapter sleeve A (5021) rotatably connected to the connecting shaft A (5011), a driving sleeve (5022) being connected below the adapter sleeve A (5021), a driving rod (5023) being sleeved in the other end of the driving sleeve (5022), and the other end of the driving rod (5023) being connected to a joint sleeve head (5024) connected to the thigh joint of the human body model (402).

7. A flame retardant performance testing device for protective clothing according to claim 6, characterized in that: The sealing cover A (1) and the sealing cover B (2) are both provided with an adapter at the top, and the sealing cover A (1) is rotatably connected to a blowing assembly (6) for simulating the ventilation environment of a fire disaster area through the adapter, and the blowing assembly (6) comprises a rotating disk (601) rotatably connected to the inside of the adapter, and a blowing head (604) is clamped on the inner side of the rotating disk (601) corresponding to the plurality of gas injection heads (302), and the blowing head (604) is rotatably connected to a blast pipe (605); The rotating disk (601) is connected to a toothed ring (602), the toothed ring (602) is meshed with a driving gear (603), an electric motor (606) is mounted on the outer wall of the sealing cover A (1), and the driving gear (603) is sleeved on the electric motor (606).

8. A method for using the flame retardant performance testing device for protective clothing according to claim 7, characterized in that: The following steps are involved: Before conducting a flame retardant test on the protective clothing, the protective clothing to be tested must first be worn on the human model (402), the sealing cover B (2) must first be opened, and then the threaded rod (3016) must be twisted until the threaded rod (3016) is separated from the threaded tube (3015), and then the support platform B (3012) must be pulled. During the pulling process of the support platform B (3012), the bottom of the support platform B (3012) slides on the base (7). During this process, the support platform B (3012) is also extended at the bottom of the support platform B (3012) through a plurality of telescopic rods (3014). The plurality of telescopic sleeves (3013) are used to perform stretching exercises to ensure the basic stability of the support platform B (3012) and the human body model (402) connected thereto. After the human body model (402) is removed from the sealing cover A (1), the protective clothing to be tested is first worn on the human body model (402), and then clean water close to human body temperature is poured into the water injection head (404). The clean water entering the water injection head (404) is diverted by the plurality of diversion pipes (405) and then quickly soaks into the lining cotton pad (403); After the protective clothing to be tested is put on and water is injected, the support platform B (3012) is first pushed until it is connected to the support platform A (3011). At this stage, the threaded rod (3016) needs to be twisted to make it threadedly connected with the threaded cylinder (3015) to ensure the basic stability of the human model (402) in the sealing cover A (1) and the sealing cover B (2), and then the sealing cover B (2) is closed; The gas valve is opened, and the gas in the gas pipe (304) enters the support platform A (3011) and the support platform B (3012) through the gas pipe (304). The gas flowing into the support platform B (3012) and the support platform A (3011) is ejected through the multiple gas injection heads (302), triggering the pulse igniter (303). The pulse igniter (303) emits an electric spark to ignite the gas ejected from the gas injection head (302) to generate a flame. The flame ejected from the multiple gas injection heads (302) surrounds the human body model (402) in multiple directions. The hydraulic cylinder (5014) is controlled to perform reciprocating telescopic motion. One end of the hydraulic cylinder (5014) rotates around the adapter B (5016) through the adapter frame (5015), and the other end rotates around the connecting shaft A (5011) through the adapter A (5013). The connecting shaft A (5011) is applied with thrust or tension through the adapter A (5013). The connecting shaft A (5011) slides on the slide bar A (5012). At the same time, the two ends also drive the leg power member A (502) and the arm power member A (503) respectively. In this process, the connecting shaft A (5011) also drives the toothed panel A (5041) to move synchronously. The toothed panel A (5041) causes the reverse gear (5043) to rotate. The reverse gear (5043) pushes the toothed panel B (5042) in the opposite direction. The toothed panel B (5042) is driven by the reverse gear (5043). The slide groove slides on the slide rod B. At the same time, the toothed panel B (5042) also drives the connecting shaft B (5045) to move synchronously through the adapter sleeve B (5044). The two ends of the connecting shaft B (5045) respectively drive the leg power part B (506) and the arm power part B (505). During the movement of the adapter sleeve A (5021), on the one hand, it rotates around the connecting shaft A (5011) or the connecting shaft B (5045) connected thereto. On the other hand, a torque is applied to the thigh or arm joint of the human model (402) through the drive sleeve (5022), the drive rod (5023) and the joint shaft sleeve. The drive rod (5023) also performs corresponding telescopic movement in the drive sleeve (5022), thereby enabling the two thigh joints and the two arm joints of the human model (402) to perform corresponding swinging movements at the same time. The motor (606) is controlled to run, the motor (606) drives the driving gear (603), the driving gear (603) drives the toothed ring (602), the toothed ring (602) drives the rotating disk (601) to rotate, and the rotating disk (601) drives the blowing head (604) to make a circular motion, so as to simulate the air flow state at the fire scene in the sealing cover A (1) and the sealing cover B (2), and control the wind pressure input into the blast pipe (605) to control the simulated air flow velocity. By simulating the air flow velocity and air flow direction, it is easy to simulate the drying speed of the steam absorbed by the protective clothing to be tested due to the air flow velocity and air flow direction.

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