Segmented textile flame-retardant testing device

Abstract

The invention relates to the technical field of textile testing, in particular to a segmented textile flame-retardant testing device, and solves the problem that an effective combustion stopping device is lacked in a testing device in the prior art. The invention discloses a segmented textile flame-retardant testing device which comprises an upper box body, a lower box body, a sample fixing module, a loading module, an exhaust fan, an atomization fire extinguishing module and a depressurization ventilation module. The upper box body is used for flame-retardant testing, and the lower box body is provided with a smoke purification module; the sample fixing module is used for loading textile samples; the loading module is used for mounting and adjusting the position of the combustor; the exhaust fan is used for extracting smoke dust; the atomization fire extinguishing module is connected with external liquid supply equipment to quickly control the fire behavior; the depressurization ventilation module achieves dust removal and negative pressure control by intelligently adjusting air inflow. By integrating the atomization fire extinguishing module and the depressurization ventilation module, the problem that combustion cannot be stopped in time in the testing process is effectively solved, and the testing safety and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile testing, and in particular to a segmented textile flame retardancy testing device. Background Art

[0002] Textiles, as products made from finely processed textile fibers, play an important role in people's daily lives. Due to their wide range of applications and diverse functional requirements, textiles usually need to undergo a series of performance tests after processing to ensure that they meet specific usage standards. Among them, flame retardant properties are a crucial part of textile testing. Flame retardant properties are not only related to the safe use of textiles, but also one of the important indicators to measure their quality. Therefore, placing the textile to be tested in a flame retardant performance tester for combustion testing has become an important means of evaluating its flame retardant properties.

[0003] However, in the actual flame retardant test process, there will be some samples with poor flame retardancy among the textiles to be tested. During the combustion test, such textile samples will produce a large amount of smoke, which may contain many uncertain harmful factors. If it is directly discharged into the environment, it will not only pollute the environment, but also pose a threat to the health of the testers. What is more serious is that the fire of the test samples with poor flame retardancy often spreads rapidly;

[0004] However, the existing test devices lack effective combustion termination devices. As a result, during the test, the tester either waits passively for the sample to burn out or extinguishes itself, which makes it impossible to stop the sample's combustion in time, resulting in greater smoke and heat, causing unnecessary emissions and hazards outside the test cycle; or manually extinguishes the sample by opening the test door, but this operation causes the smoke in the test instrument to overflow instantly, which not only endangers the health of the tester, but may also cause the smoke to spread everywhere, posing a potential threat to the safety of other personnel and instruments in the laboratory.

[0005] Therefore, in view of the shortcomings of the existing flame retardant test device, we urgently need a segmented textile flame retardant test device to solve this problem. This flame retardant test device should be able to effectively control the smoke generated during the test to avoid harm to the environment and testers; at the same time, it should also have an efficient combustion termination function, which can stop the burning of the sample in a timely and safe manner while ensuring the accuracy of the test, thereby ensuring the smooth progress of the test process and providing more reliable technical support for the flame retardant performance test of textiles. Summary of the invention

[0006] The purpose of the present invention is to provide a segmented textile flame retardancy testing device, which solves the problem of lack of an effective combustion stopping device inside the testing device in the prior art.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A segmented textile flame retardant testing device, comprising an upper box and a lower box;

[0009] The upper box body is provided with a sample fixing module and a loading module, the lower box body is provided with an exhaust fan, and the burner is connected to one side of the loading module;

[0010] The top of the sample fixing module is provided with an atomizing fire extinguishing module, and one side of the loading module is provided with a depressurizing ventilation module, the atomizing fire extinguishing module comprises a plurality of atomizing nozzles and a liquid delivery pipeline, the output end of the liquid delivery pipeline is connected with the plurality of atomizing nozzles, and the input end is connected with the liquid delivery device, and the depressurizing ventilation module comprises a fixed air inlet end and a dual-state air inlet end;

[0011] The fixed air inlet end is arranged inside the upper box body, the dual-state air inlet end is arranged outside the upper box body, the fixed air inlet end and the dual-state air inlet end are interconnected, and the exhaust fan is interconnected with the fixed air inlet end and the dual-state air inlet end.

[0012] Preferably, the sample fixing module includes a fixing frame and two fixing clamps that are detachably connected to each other, the fixing frame is connected to the interior of the upper box body through two support frames, and an opening is provided on one side of the fixing frame, and both inner walls of the fixing frame are provided with plug-in grooves that are connected to the opening and compatible with the two fixing clamps, and an operating door is installed on one side of the upper box body close to the fixing frame.

[0013] Preferably, the loading module includes a lifting frame, a loading plate and a handwheel, the loading plate and the handwheel are respectively arranged on both sides of the lifting frame, and a screw rod is connected to one side of the handwheel, one end of the screw rod passes through the lifting frame and is rotatably connected to one side of the loading plate through a threaded sleeve, the burner is connected to the top of the loading plate, and an operating door is installed on the side of the upper box body close to the handwheel.

[0014] Preferably, the inner wall of the fixing frame is connected with a magnet plate, one side of the two fixing clamping plates is connected with a magnet sheet, and the liquid delivery pipeline is arranged on the top of the fixing frame.

[0015] Preferably, lifting cylinders connected to the interior of the upper box are provided on both sides of the bottom of the lifting frame, the output ends of the lifting cylinders are connected to the bottom of the lifting frame, two guide rods are connected to one side of the loading plate, and one end of the guide rods passes through the lifting frame through a sliding sleeve.

[0016] Preferably, several of the atomizing nozzles are symmetrically and evenly distributed on both sides of the top of the fixed frame and are connected to the liquid delivery pipeline. Both sides of the top of the fixed frame are connected with mounting brackets, and the top of each of the mounting brackets is fixedly connected with several inclined mounting rings that are compatible with the atomizing nozzles, and one side of the liquid delivery pipeline is connected with a liquid supply pipe.

[0017] Preferably, the pressure-reducing ventilation module includes a connecting box, the fixed air inlet end includes a plurality of air inlet cylinders arranged on one side of the connecting box, the dual-state air inlet end includes a plurality of inner cylinders arranged on the other side of the connecting box, the inner cylinders are connected to one end of the inner part of the air inlet cylinder, the outer ring of the air inlet cylinder is provided with a plurality of air inlet holes, one end of the air inlet cylinder passes through the connecting box to be connected with the interior of the upper box body, and one end of the inner cylinder passes through the connecting box to be connected with the exterior of the upper box body;

[0018] A conical plug is provided at one end of each inner cylinder away from the air inlet cylinder. The conical plug is movably connected to one end of the inner cylinder through an elastic guide structure. The diameter of one end of the conical plug is smaller than the inner diameter of the inner cylinder, and the diameter of the other end is larger than the inner diameter of the inner cylinder.

[0019] Preferably, the elastic guide structure includes two guide rods and two interfering round rods, four circular holes are opened at the edge of one end of the inner cylinder, one end of the two guide rods is fixedly connected to the outer ring of the conical plug, and the other end is slidably connected to the circular hole, one end of the two interfering round rods is elastically connected to the inner wall of the circular hole through a reset spring, and the other end contacts the side wall of the conical plug.

[0020] Preferably, a front impurity removal cylinder is arranged inside each of the air inlet cylinders, a plurality of air inlet slots are provided on the outer ring and both ends of the front impurity removal cylinder, and the interior of the front impurity removal cylinder is filled with filter material.

[0021] Preferably, a purification box and a impurity removal and cooling box are provided inside the lower box body, one end of the impurity removal and cooling box is connected to the input end of the exhaust fan, and the other end is connected to the interior of the connecting box through an air intake pipe, one end of the purification box is connected to the output end of the exhaust fan, and the other end is connected to an exhaust pipe, and one end of the exhaust pipe extends to the outside of the lower box body.

[0022] The present invention has at least the following beneficial effects:

[0023] 1. The atomizing fire extinguishing module and the pressure-reducing ventilation module in the present invention together constitute an efficient and safe test environment control system. During the test, once the textile sample burns rapidly due to poor flame retardancy, the atomizing fire extinguishing module can respond quickly and spray the atomizing fire extinguishing agent to control the fire and ensure the safety of the test. At the same time, the pressure-reducing ventilation module can effectively remove the smoke and dust generated by the test by intelligently adjusting the state of the air inlet end, and form a negative pressure environment when necessary to further suppress the spread of the fire. This design not only improves the safety of the test, but also reduces environmental pollution during the test, providing a healthier working environment for operators;

[0024] 2. The present invention realizes multi-stage ignition of different positions of the textile sample through the horizontal adjustment function of the loading module, thereby ensuring the comprehensiveness and accuracy of the flame retardant test. This design effectively solves the problem of one-sided test results caused by a single ignition position in traditional tests, making the test results more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the upper box body and the lower box body of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the exhaust fan and the impurity removal and cooling box of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the atomizing fire extinguishing module and the sample fixing module of the present invention;

[0030] Figure 5 This is a schematic diagram of the liquid delivery pipeline and atomizing nozzle structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the lifting frame and the loading plate of the present invention;

[0032] Figure 7 This is a schematic diagram of the purification box and exhaust pipe structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the air inlet cylinder and the front impurity removal cylinder of the present invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the inner cylinder and the conical plug of the present invention.

[0035] In the figure: 1, lower box; 2, upper box; 3, atomizing fire extinguishing module; 4, sample fixing module; 5, loading module; 6, depressurization ventilation module; 7, exhaust fan; 8, impurity removal and cooling box; 9, support frame; 10, burner; 11, purification box; 12, exhaust pipe; 13, air inlet pipe; 301, liquid delivery pipeline; 302, liquid supply pipe; 303, atomizing nozzle; 304, mounting ring; 305, mounting frame; 401, fixing frame; 402, fixing splint; 403, magnet plate; 404, plug-in slot; 501, lifting frame; 502, hand wheel; 503, screw rod; 504, guide rod; 505, loading plate; 506, lifting cylinder; 601, connecting box; 602, front debris removal cylinder; 603, air inlet cylinder; 604, conical plug; 605, air inlet hole; 606, inner cylinder; 607, return spring; 608, abutment round rod; 609, guide rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] Embodiment 1

[0038] See also Figure 1-9 As shown, a segmented textile flame retardancy testing device of this embodiment includes an upper box body 2 and a lower box body 1;

[0039] Upper box 2: Mainly used for flame retardant test of textiles. Its size is smaller than that of lower box 1 and is installed on the top of lower box 1, providing a relatively closed space for testing.

[0040] Lower box 1: As the basic part of the entire test device, it is mainly used to set the smoke purification module, and to accommodate and support the upper box 2 and other internal components.

[0041] Sample fixing module 4: used to load and fix textile samples to ensure that the samples will not move or fall off during the test, thereby ensuring the accuracy of the test.

[0042] Loading module 5: used to install the burner 10, and can drive the burner to adjust horizontally at the bottom position of the textile sample, so as to perform multi-stage ignition at different positions of the textile sample to ensure the comprehensiveness of the test.

[0043] Exhaust fan 7: used to extract and discharge smoke and dust generated during the test inside the upper box body 2, keep the test environment clean, and help control the fire by cooperating with the pressure reduction ventilation module 6.

[0044] Burner 10: As the fire source of the test, the textile sample is ignited to evaluate its flame retardant performance.

[0045] Atomization fire extinguishing module 3: connected to the external liquid supply equipment, when the flame retardancy of the textile sample is poor and causes rapid combustion, it can spray out the fire extinguishing agent or pure water to quickly control the fire and ensure the safety of the test.

[0046] Depressurization ventilation module 6: It has the functions of ventilation and dust collection. It includes a fixed air inlet end and a dual-state air inlet end. The opening and closing of the dual-state air inlet end is controlled by adjusting the power of the exhaust fan 7, so that a negative pressure is formed inside the upper box 2 while removing dust, further controlling the fire.

[0047] Fixed air inlet end: always draws air from the interior of the upper box body 2, and is interconnected with the dual-state air inlet end, together forming a ventilation and dust collection system of the pressure reduction ventilation module 6.

[0048] Dual-state air inlet: It has two states, open and closed, and its state is determined by the exhaust power of the exhaust fan 7. When the exhaust fan 7 has a low power, external air is allowed to enter the upper box 2; when the exhaust fan 7 has a high power, it is closed to prevent external air from entering, thereby forming a negative pressure inside the upper box 2 while removing dust.

[0049] The upper box body 2 is provided with a sample fixing module 4 and a loading module 5, the lower box body 1 is provided with an exhaust fan 7, and a burner 10 is connected to one side of the loading module 5;

[0050] The top of the sample fixing module 4 is provided with an atomizing fire extinguishing module 3, and one side of the loading module 5 is provided with a depressurizing ventilation module 6. The atomizing fire extinguishing module 3 includes a plurality of atomizing nozzles 303 and a liquid delivery pipeline 301. The output end of the liquid delivery pipeline 301 is connected to the plurality of atomizing nozzles 303, and the input end is connected to the liquid delivery device. The depressurizing ventilation module 6 includes a fixed air inlet end and a dual-state air inlet end.

[0051] The fixed air inlet end is arranged inside the upper box body 2, the dual-state air inlet end is arranged outside the upper box body 2, and the fixed air inlet end and the dual-state air inlet end are interconnected, and the exhaust fan 7 is interconnected with the fixed air inlet end and the dual-state air inlet end.

[0052] Embodiment 2

[0053] See also Figure 1-9As shown, a segmented textile flame retardant testing device of this embodiment, the pressure reduction ventilation module 6 includes a connecting box 601, the fixed air inlet end includes a plurality of air inlet cylinders 603 arranged on one side of the connecting box 601, and the dual-state air inlet end includes a plurality of inner cylinders 606 arranged on the other side of the connecting box 601, the inner cylinder 606 is connected to one end of the inner part of the air inlet cylinder 603, and the outer ring of the air inlet cylinder 603 is provided with a plurality of air inlet holes 605, one end of the air inlet cylinder 603 passes through the connecting box 601 and is connected to the interior of the upper box body 2, and one end of the inner cylinder 606 passes through the connecting box 601 and is connected to the outside of the upper box body 2;

[0054] A conical plug 604 is provided at one end of each inner cylinder 606 away from the air inlet cylinder 603. The conical plug 604 is movably connected to one end of the inner cylinder 606 through an elastic guiding structure. The diameter of one end of the conical plug 604 is smaller than the inner diameter of the inner cylinder 606, and the diameter of the other end is larger than the inner diameter of the inner cylinder 606. Specifically, through the arrangement of the connecting box 601, the air inlet cylinder 603, the inner cylinder 606 and the conical plug 604 in the pressure reduction ventilation module 6, the function of automatically adjusting the air intake state according to the power of the exhaust fan 7 is realized. The working process is as follows: the elastic guide structure guides the conical plug 604 when it moves and elastically limits its position. When the wind pressure is low, the elastic guide structure contacts the conical plug 604 to make it away from the end of the inner tube 606. At this time, the conical plug 604 and the inner tube 606 are not in contact, and there is a gap for air intake. When the power of the exhaust fan 7 is low, the conical plug 604 opens to allow external air to enter; when the power increases, the conical plug 604 closes to prevent external air from entering. The effect of effectively controlling the diffusion of smoke and forming a negative pressure environment is achieved.

[0055] The elastic guide structure includes two guide rods 609 and two abutting round rods 608. Four round holes are provided at the edge of one end of the inner cylinder 606. One end of the two guide rods 609 is fixedly connected to the outer ring of the conical plug 604, and the other end is slidably connected to the round hole. One end of the two abutting round rods 608 is elastically connected to the inner wall of the round hole through the reset spring 607, and the other end is in contact with the side wall of the conical plug 604. Specifically, the elastic guide structure provided at one end of the inner cylinder 606 includes the guide rod 609 and the abutting round rod 608, which ensures that the conical plug 604 can be stably and flexibly opened and closed when the wind pressure changes. The working process is: when the wind pressure increases, the reset spring 607 is compressed, and the conical plug 604 is close to the inner cylinder 606 and is in close contact with the end of the inner cylinder 606; when the wind pressure decreases, the reset spring 607 is reset, and the conical plug 604 is opened under the guidance of the guide rod 609. The effect of improving the response speed and stability of the pressure reduction ventilation module 6 is achieved.

[0056] Embodiment 3

[0057] See also Figure 1-9As shown, in a segmented textile flame retardant testing device of this embodiment, each air inlet cylinder 603 is provided with a pre-impurity removal cylinder 602, and the outer ring and both ends of the pre-impurity removal cylinder 602 are provided with a plurality of air inlet slots, and the interior of the pre-impurity removal cylinder 602 is filled with filter material. Specifically, by setting the pre-impurity removal cylinder 602 inside each air inlet cylinder 603, impurities and particulate matter in the air inside the upper box 2 are effectively removed. The working process is: when the air of the upper box 2 passes through the air inlet cylinder 603, it is first filtered by the pre-impurity removal cylinder 602, and then enters the connecting box 601.

[0058] The lower box 1 is provided with a purification box 11 and a dust removal and cooling box 8. One end of the dust removal and cooling box 8 is connected to the input end of the exhaust fan 7, and the other end is connected to the inside of the connecting box 601 through the air inlet pipe 13. One end of the purification box 11 is connected to the output end of the exhaust fan 7, and the other end is connected to the exhaust pipe 12. One end of the exhaust pipe 12 extends to the outside of the lower box 1. Specifically, the extracted smoke is further purified and cooled by the purification box 11 and the dust removal and cooling box 8 provided inside the lower box 1. The working process is: the smoke is first processed by the dust removal and cooling box 8, and then enters the purification box 11 for final purification, and finally discharged to the outside through the exhaust pipe 12. The effect of reducing environmental pollution and protecting the health of testers is achieved.

[0059] The impurity removal and cooling box 8 is the first link in the smoke treatment process. Its main function is to remove large particles and dust in the smoke and reduce the temperature of the smoke. The interior of the box is usually equipped with filtering devices such as metal mesh filters, primary filters, etc. and cooling mechanisms such as cooling coils, coolant circulation systems, etc. The filtering device can effectively intercept and collect solid impurities in the smoke to prevent them from entering the subsequent processing links and causing blockage or affecting the purification efficiency; while the cooling mechanism reduces the temperature of the smoke through physical methods such as heat exchange to avoid equipment damage or safety hazards caused by high temperature. These technologies and components belong to the scope of the prior art and will not be repeated here, and are widely used in various industrial dust removal, air purification and cooling systems.

[0060] The purification box 11 follows the impurity removal and cooling box and is the final stage of smoke treatment, focusing on removing harmful gases, tiny particles and possible odors in the smoke. It is usually equipped with high-efficiency filters such as HEPA filters, activated carbon adsorption layers, chemical adsorbents or photocatalytic oxidation devices to achieve deep purification of smoke. High-efficiency filters can effectively capture and remove particles as small as nanometers, including microorganisms such as bacteria and viruses; the activated carbon adsorption layer uses the strong adsorption of activated carbon to remove organic pollutants and some inorganic gases in the smoke; chemical adsorbents react chemically with specific harmful gases to convert them into harmless or low-toxic substances; photocatalytic oxidation technology uses ultraviolet rays to excite catalysts to produce free radicals with strong oxidizing properties to decompose harmful gases in smoke. These purification technologies also belong to the prior art and will not be repeated here, and are widely used in the fields of air purification, water treatment and waste gas treatment.

[0061] Embodiment 4

[0062] See also Figure 1-9 As shown, a segmented textile flame retardant testing device of the present embodiment, the sample fixing module 4 includes a fixing frame 401 and two fixing clamps 402 detachably connected to each other, the fixing frame 401 is connected to the interior of the upper box body 2 through two support frames 9, and one side of the fixing frame 401 is provided with an opening, and the two inner walls of the fixing frame 401 are provided with plug-in slots 404 connected to the opening and adapted to the two fixing clamps 402, and an operating door is installed on one side of the upper box body 2 close to the fixing frame 401. Specifically, through the setting of the fixing frame 401 and the two fixing clamps 402 detachably connected to each other in the sample fixing module 4, the tester can easily place the textile sample between the two fixing clamps 402 for clamping to ensure that the sample is stable and does not shake, and then connect the two fixing clamps 402 to the fixing frame 401, thereby achieving the effect of quickly and stably fixing the sample and improving the test preparation efficiency.

[0063] The inner wall of the fixed frame 401 is connected with a magnet plate 403, one side of the two fixed clamps 402 is connected with a magnet sheet, and the liquid delivery pipeline 301 is arranged on the top of the fixed frame 401. Specifically, the magnet plate 403 connected to the inner wall of the fixed frame 401 and the magnet sheets on one side of the two fixed clamps 402 are arranged to realize the rapid magnetic attraction positioning after the two fixed clamps 402 are connected to the fixed frame 401, and the two fixed clamps 402 connected to the inside of the fixed frame 401 are quickly positioned by magnetic force. The effect of simplifying the operation and improving the fixing stability is achieved.

[0064] Several atomizing nozzles 303 are symmetrically and evenly distributed on both sides of the top of the fixed frame 401 and are connected to the liquid delivery pipeline 301. Both sides of the top of the fixed frame 401 are connected to mounting frames 305. The top of each mounting frame 305 is fixedly connected with several mounting rings 304 that are tilted and matched with the atomizing nozzles 303. One side of the liquid delivery pipeline 301 is connected to a liquid supply pipe 302. Specifically, by symmetrically and evenly distributing several atomizing nozzles 303 on both sides of the top of the fixed frame 401 and connecting to the liquid delivery pipeline 301, it is ensured that the fire extinguishing agent can be sprayed evenly and quickly to the burning area. The working process is: when fire extinguishing is needed, the fire extinguishing agent is transported to the atomizing nozzle 303 through the liquid delivery pipeline 301, and is evenly sprayed to the burning area after atomization. The effect of improving the efficiency and effect of fire extinguishing is achieved.

[0065] Embodiment 5

[0066] See also Figure 1-9 As shown, a segmented textile flame retardant testing device of this embodiment, the loading module 5 includes a lifting frame 501, a loading plate 505 and a handwheel 502, the loading plate 505 and the handwheel 502 are respectively arranged at the two sides of the lifting frame 501, and a screw rod 503 is connected to one side of the handwheel 502, one end of the screw rod 503 passes through the lifting frame 501 and is rotatably connected to one side of the loading plate 505 through a screw sleeve, the burner 10 is connected to the top of the loading plate 505, and an operating door is installed on the side of the upper box 2 close to the handwheel 502. Specifically, through the setting of the lifting frame 501, the loading plate 505 and the handwheel 502 in the loading module 5, the tester can easily adjust the height and position of the burner 10 to realize multi-stage ignition of different positions of the textile sample. The workflow is: turn the handwheel 502, and the loading plate 505 moves up and down on the lifting frame 501 through the screw rod 503, so as to adjust the position of the burner 10. The effect of improving the comprehensiveness and accuracy of the test is achieved.

[0067] Both sides of the bottom of the lifting frame 501 are provided with lifting cylinders 506 connected to the inside of the upper box 2, and the output end of the lifting cylinder 506 is connected to the bottom of the lifting frame 501. Two guide rods 504 are connected to one side of the loading plate 505, and one end of the guide rod 504 passes through the lifting frame 501 through a sliding sleeve. Specifically, by setting the lifting cylinders 506 set on both sides of the bottom of the lifting frame 501, the tester can more accurately control the lifting height of the burner 10, and at the same time reduce the labor intensity of manual operation. The workflow is: by controlling the extension and contraction of the lifting cylinder 506, the lifting frame 501 is driven to move up and down, so as to accurately adjust the position of the burner 10. The effect of improving the test accuracy and the convenience of operation is achieved. By setting the two guide rods 504 connected to one side of the loading plate 505, the stability and guidance of the loading plate 505 during the translation process are ensured. The workflow is: when the loading plate 505 is horizontally moved by the rotation of the screw rod 503, the guide rod 504 slides in the sliding sleeve to play a guiding and stabilizing role. The effect of improving the operational stability and reliability of the loading module 5 is achieved.

[0068] This program has the following working process:

[0069] The device is mainly composed of an upper box 2 and a lower box 1, wherein the upper box 2 is smaller than the lower box 1 and is installed on the upper part thereof. The upper box 2 is provided with a sample fixing module 4 and a loading module 5, and the loading module 5 is used to fix the textile sample and adjust the position of the burner 10 to realize a multi-stage ignition test. The lower box 1 is provided with an exhaust fan 7, a purification box 11 and a decontamination and cooling box 8 to handle the smoke generated during the test.

[0070] Sample fixing and loading stage:

[0071] The sample fixing module 4 comprises a fixing frame 401 and two detachably connected fixing clamps 402, and the textile sample is fixed quickly and stably through the magnetic attraction of the magnet plate 403 and the magnet sheet. This design simplifies the operation, improves the fixing stability, and ensures the accuracy of the test.

[0072] The loading module 5 is composed of a lifting frame 501, a loading plate 505 and a hand wheel 502. By rotating the hand wheel 502 to drive the screw rod 503, the loading plate 505 is horizontally moved and adjusted on one side of the lifting frame 501, thereby accurately adjusting the position of the burner 10. At the same time, the lifting cylinder 506 provides vertical lifting control. The guide rod 504 ensures the stability and guidance of the loading plate 505 during the horizontal adjustment process.

[0073] Flame retardant testing and smoke treatment stage:

[0074] After the burner 10 ignites the textile sample, smoke and heat are generated in the upper box 2. The exhaust fan 7 starts to work, and continuously extracts air and smoke inside the upper box 2 through the fixed air inlet end of the depressurization ventilation module 6: the air inlet 603.

[0075] The dual-state air inlet end of the pressure-reducing ventilation module 6: the inner cylinder 606 and the conical plug 604 automatically adjust the air inlet state according to the power of the exhaust fan 7. When the power is low, the conical plug 604 opens to allow external air to enter to balance the pressure; when the power increases, the conical plug 604 closes to form a negative pressure environment, effectively curbing the spread of fire and smoke.

[0076] The front impurity removal cylinder 602 removes impurities and particulate matter during the air intake process to further purify the air.

[0077] Fire extinguishing and smoke purification stage:

[0078] If the textile sample has poor flame retardancy and the fire spreads rapidly, the atomizing fire extinguishing module 3 is immediately activated. The liquid delivery pipeline 301 atomizes the fire extinguishing agent or pure water, and then quickly sprays it to the burning area through a plurality of symmetrical and evenly distributed atomizing nozzles 303 to reduce the fire and extinguish the flame.

[0079] After the fire is extinguished, smoke is drawn into the impurity removal and cooling box 8 in the lower box 1 by the exhaust fan 7 for preliminary treatment to remove large particles and dust and reduce the temperature. Subsequently, the smoke enters the purification box 11 for deep purification to remove harmful gases, tiny particles and odors, and is finally discharged to the outside through the exhaust pipe 12.

[0080] Comprehensive effect:

[0081] The device uses a segmented design to achieve comprehensive and accurate testing of the flame retardant properties of textiles, while effectively controlling fire and smoke during the test and protecting the safety of testers.

[0082] The design of the sample fixing module 4 and the loading module 5 improves the test preparation efficiency and test accuracy and reduces the operation difficulty.

[0083] The coordinated use of the pressure reduction ventilation module 6 and the atomization fire extinguishing module 3 effectively curbs the spread of fire and improves the efficiency and effect of fire extinguishing.

[0084] The provision of the impurity removal and cooling box 8 and the purification box 11 reduces environmental pollution, protects the health of testers, and complies with environmental protection standards.

[0085] In summary, the segmented textile flame retardant testing device not only improves the comprehensiveness and accuracy of the test, but also effectively controls the fire and smoke during the test, protecting the safety of the environment and testers.

[0086] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A segmented textile flame retardancy testing device, characterized in that: include: An upper box body (2) and a lower box body (1); The upper box (2) is provided with a sample fixing module (4) and a loading module (5), the lower box (1) is provided with an exhaust fan (7), and the burner (10) is connected to one side of the loading module (5); The top of the sample fixing module (4) is provided with an atomizing fire extinguishing module (3), and one side of the loading module (5) is provided with a pressure reducing ventilation module (6). The atomizing fire extinguishing module (3) comprises a plurality of atomizing nozzles (303) and a liquid delivery pipeline (301). The output end of the liquid delivery pipeline (301) is connected to the plurality of atomizing nozzles (303), and the input end is connected to the liquid delivery device. The pressure reducing ventilation module (6) comprises a fixed air inlet end and a dual-state air inlet end. The fixed air inlet end is arranged inside the upper box body (2), the dual-state air inlet end is arranged outside the upper box body (2), the fixed air inlet end and the dual-state air inlet end are interconnected, and the exhaust fan (7) is interconnected with the fixed air inlet end and the dual-state air inlet end.

2. A segmented textile flame retardancy testing device according to claim 1, characterized in that: The sample fixing module (4) comprises a fixing frame (401) and two fixing clamps (402) which are detachably connected to each other. The fixing frame (401) is connected to the interior of the upper box body (2) through two support frames (9), and an opening is provided on one side of the fixing frame (401). Both inner walls of the fixing frame (401) are provided with plug-in slots (404) which are connected to the opening and are compatible with the two fixing clamps (402). An operating door is installed on one side of the upper box body (2) close to the fixing frame (401).

3. The segmented textile flame retardancy testing device according to claim 1, characterized in that: The loading module (5) comprises a lifting frame (501), a loading plate (505) and a hand wheel (502); the loading plate (505) and the hand wheel (502) are respectively arranged at two sides of the lifting frame (501); one side of the hand wheel (502) is connected to a screw rod (503); one end of the screw rod (503) penetrates the lifting frame (501) through a screw sleeve and is rotatably connected to one side of the loading plate (505); the burner (10) is connected to the top of the loading plate (505); and an operating door is installed on a side of the upper box body (2) close to the hand wheel (502).

4. A segmented textile flame retardancy testing device according to claim 2, characterized in that: The inner wall of the fixed frame (401) is connected to a magnet plate (403), one side of the two fixed clamping plates (402) is connected to a magnet sheet, and the liquid delivery pipeline (301) is arranged on the top of the fixed frame (401).

5. The segmented textile flame retardancy testing device according to claim 3, characterized in that: Lifting cylinders (506) connected to the interior of the upper box (2) are provided on both sides of the bottom of the lifting frame (501); the output end of the lifting cylinder (506) is connected to the bottom of the lifting frame (501); one side of the loading plate (505) is connected to two guide rods (504); one end of the guide rod (504) passes through the lifting frame (501) via a sliding sleeve.

6. The segmented textile flame retardancy testing device according to claim 4, characterized in that: A plurality of the atomizing nozzles (303) are symmetrically and evenly distributed on both sides of the top of the fixed frame (401) and are all connected to the liquid delivery pipeline (301). Both sides of the top of the fixed frame (401) are connected to mounting frames (305). The top of each mounting frame (305) is fixedly connected to a plurality of mounting rings (304) that are arranged obliquely and are compatible with the atomizing nozzles (303). One side of the liquid delivery pipeline (301) is connected to a liquid supply pipe (302).

7. The segmented textile flame retardancy testing device according to claim 1, characterized in that: The pressure-reducing ventilation module (6) includes a connecting box (601), the fixed air inlet end includes a plurality of air inlet tubes (603) arranged on one side of the connecting box (601), and the dual-state air inlet end includes a plurality of inner tubes (606) arranged on the other side of the connecting box (601), the inner tubes (606) are connected to one end of the inner part of the air inlet tube (603), the outer ring of the air inlet tube (603) is provided with a plurality of air inlet holes (605), one end of the air inlet tube (603) passes through the connecting box (601) and is connected to the interior of the upper box body (2), and one end of the inner tube (606) passes through the connecting box (601) and is connected to the outside of the upper box body (2); A conical plug (604) is provided at one end of each inner cylinder (606) away from the air inlet cylinder (603); the conical plug (604) is movably connected to one end of the inner cylinder (606) via an elastic guide structure; the diameter of one end of the conical plug (604) is smaller than the inner diameter of the inner cylinder (606), and the diameter of the other end is larger than the inner diameter of the inner cylinder (606).

8. The segmented textile flame retardancy testing device according to claim 7, characterized in that: The elastic guide structure comprises two guide rods (609) and two abutting round rods (608). Four round holes are opened at the edge of one end of the inner cylinder (606). One end of the two guide rods (609) is fixedly connected to the outer ring of the conical plug (604), and the other end is slidably connected to the round hole. One end of the two abutting round rods (608) is elastically connected to the inner wall of the round hole through a return spring (607), and the other end is in contact with the side wall of the conical plug (604).

9. The segmented textile flame retardancy testing device according to claim 7, characterized in that: A front impurity removal cylinder (602) is arranged inside each of the air inlet cylinders (603), a plurality of air inlet slots are provided on the outer ring and both ends of the front impurity removal cylinder (602), and the interior of the front impurity removal cylinder (602) is filled with filter material.

10. The segmented textile flame retardancy testing device according to claim 9, characterized in that: The lower box (1) is provided with a purification box (11) and a dust removal and cooling box (8). One end of the dust removal and cooling box (8) is connected to the input end of the exhaust fan (7), and the other end is connected to the interior of the connecting box (601) through an air intake pipe (13). One end of the purification box (11) is connected to the output end of the exhaust fan (7), and the other end is connected to an exhaust pipe (12). One end of the exhaust pipe (12) extends to the outside of the lower box (1).

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