An environmental and mechanical damage coupling test device and method for individual protection equipment

Abstract

The present application relates to individual protective equipment test technical field, especially to a kind of environment and mechanical damage coupling test device and method for individual protective equipment, including base, three-dimensional lifting mechanism and polishing tool, three-dimensional lifting mechanism is installed on base, polishing tool is set on three-dimensional lifting mechanism, fixed ring is installed on base by fixed rod, and movable outer ring and movable inner ring are symmetrically arranged on the upper and lower of fixed ring, and movable outer ring is coaxially arranged with fixed ring, and the outside of movable outer ring and fixed ring is provided with sample mounting portion for hooking sample, and sample mounting portion is equidistantly arranged along the circumferential direction of fixed ring.The present application can realize the multi-factor coupling test of environment and mechanical working condition such as heat / humidity / salt fog / mold / spraying / sunlight and tension / twist / friction, and can adapt to the installation test of various different shape samples such as protective clothing, bulletproof vest, protective boots, etc., with large sample installation amount, firm, simple and fast operation, and adjustable stress state.

Description

Technical Field

[0001] This invention relates to the field of individual soldier protective equipment testing technology, and in particular to an environmental and mechanical damage coupling testing device and method for individual soldier protective equipment. Background Technology

[0002] Individual protective equipment (i.e., combat uniforms, bulletproof vests, fire-fighting protective clothing, security duty uniforms, protective boots, etc.) is the core protective equipment for individual soldiers in combat training, special operations, and emergency rescue scenarios. The protective performance and service life of individual soldier equipment are influenced by the combined effects of the comprehensive environment and complex working conditions throughout its entire lifespan. For example, materials are affected by humid air, low temperatures, and mold growth during long-term static storage in warehouses; during service, they are affected by outdoor sunlight exposure, sweat or rain immersion / drying; and during individual soldier movement, the protective equipment is subjected to stretching / twisting mechanical forces, as well as friction / wear caused by crawling and rolling during operations. Therefore, simulating the environmental and mechanical damage experienced by individual soldier protective equipment throughout its entire lifespan and reasonably assessing its durability is a core aspect of protective equipment material development, process optimization, product finalization, and quality control.

[0003] Existing environmental durability testing devices for individual soldier protective equipment are mostly independent testing devices corresponding to a single environmental or mechanical factor, which cannot achieve synchronous coupling loading of multiple environmental factors and mechanical loads. For example, when conducting damp heat tests or simulated sunlight aging tests according to GJB150, the sample is removed after one set of tests and another set of tests is conducted in another device. However, in actual service, individual soldier protective equipment is subjected to the coupled, long-term, cumulative, and cyclical effects of comprehensive environmental factors such as temperature, humidity, water, and salt, and complex mechanical factors such as tension, bending, torsion, and abrasion, leading to damage to the equipment materials and a decrease or loss of protective effectiveness. Currently, there are few reports in the industry on environmental-mechanical coupling testing devices and methods for individual soldier protective equipment. This makes it impossible to accurately assess the protective performance or lifespan of materials. Protective equipment that has passed product quality verification may experience fiber wear, fabric tearing, or even damage to core functions such as ballistic resistance and heat insulation during service. In addition, existing testing devices cannot achieve free switching between static environment and dynamic working condition coupling. They can only adapt to a single test scenario and cannot meet the differentiated testing needs of the entire life cycle, such as single-factor standard testing in the material development stage of protective equipment, extreme working condition coupling endurance testing in the product finalization stage, and large-scale quality acceptance in the mass production stage. This limits the application scenarios.

[0004] It is particularly noteworthy that the traditional method for testing the abrasion resistance of individual protective equipment mainly involves laying the sample flat and rubbing the test item by rotating a friction disc in parallel. However, the traditional method of laying the sample flat is prone to liquid accumulation, and abrasive particles and debris are likely to remain on the sample surface. In actual service, protective equipment is mostly worn vertically on the soldier's body, and sweat and other liquids generally flow to the lower part while the upper part dries faster, and sand and abrasion debris are also easy to fall off.

[0005] Existing friction testing devices cannot control the angle and force of contact between the friction disc and the sample, and cannot accurately simulate different friction modes such as unidirectional friction, reciprocating friction, and S-curve friction in different service scenarios such as cement ground, muddy ground, and grass. Furthermore, they cannot reproduce the state of protective equipment under pre-tension when worn or used.

[0006] In addition, traditional testing devices often use simple clamps to hold the edge of the sample, which can only be used to test a single factor. The clamp position needs to be repeatedly adjusted to adapt to different scenarios, resulting in low installation efficiency. Furthermore, during the test, the sample is subject to continuous mechanical and environmental factors (humid environment, oily environment), which can easily cause the sample to loosen or slip off. This not only affects the accuracy of the test data but may also damage the testing device or the sample, failing to meet the requirements for efficient and accurate testing. Summary of the Invention

[0007] In view of the problems mentioned in the background art, the present invention aims to provide an environmental and mechanical damage coupling test device and method for individual soldier protective equipment.

[0008] The present invention adopts the following technical solution.

[0009] An environmental and mechanical damage coupling test device and method for individual soldier protective equipment includes a base, a three-dimensional lifting mechanism, and a grinding tool. The three-dimensional lifting mechanism is mounted on the base, and the grinding tool is located on one side of the moving end of the three-dimensional lifting mechanism. A spray pipe and a spore suspension spray pipe are installed on the base. A fixed ring is mounted on the base via a fixed rod. An irradiation lamp is coaxially arranged at the center of the fixed ring and is mounted on the base. A movable outer ring and a movable inner ring are symmetrically arranged above and below the fixed ring, and the movable outer ring is coaxial with the fixed ring. A sample mounting part for hooking and pulling the sample is provided on the outer side of both the movable outer ring and the fixed ring, and the sample mounting parts are equidistant along the circumference of the fixed ring. A movable cylinder is provided on the surface of the fixed ring, and the output end of the movable cylinder is connected to the movable inner ring. A rotating component for driving the movable outer ring to rotate relative to the movable inner ring is provided on the surface of the movable outer ring.

[0010] To facilitate the testing of the torsional resistance of the specimen, the rotating assembly includes a rotary motor, a gear, and a gear ring. The rotary motor is mounted on the surface of the movable inner ring, the gear ring is set on the surface of the movable outer ring, the gear meshes with the gear ring, and the output end of the rotary motor is connected to the gear.

[0011] To improve the stability of the test device, the structure on the movable outer ring that matches the interior of the movable inner ring is T-shaped.

[0012] To further improve sample installation efficiency and effectively prevent sample loosening and slippage during testing under the interference of mechanical and environmental factors (humidity and oily environment), the sample installation parts are all horizontally arranged L-shaped rods. The suspended end of the L-shaped rod is provided with a protrusion. The protrusion has gaps with the outer end face of the movable outer ring and the outer end face of the fixed ring. The protrusion can limit the circumferential movement of the sample. The sample installation part connected to the movable outer ring and the sample installation part connected to the fixed ring are vertically aligned and have opposite opening directions.

[0013] To facilitate the recovery of waste liquid generated during experiments, a recovery chamber is provided inside the base, and a recovery tank is provided on the base. The surface of the recovery tank has multiple holes that communicate with the recovery chamber, and a recovery pipe that communicates with the recovery chamber is provided on one side of the base.

[0014] Preferably, the interior of the recovery chamber has a guide ramp.

[0015] To simulate different working conditions, the spray pipe is connected to an external liquid supply device for spraying clean water or salt spray.

[0016] To further improve the stability of the specimen during the test, the cross-section of the L-shaped rod is rectangular. To facilitate the replacement of polishing tools made of different materials, a polishing motor for driving the rotation of the polishing tool is installed in the moving end of the three-dimensional lifting mechanism, and the polishing tool is detachably connected to the output end of the polishing motor.

[0017] A test method using the aforementioned environmental and mechanical damage coupling test device includes the following steps: mounting an annular specimen on a specimen mounting part; and conducting the following tests on the specimen according to preset test parameters within a set time period: tensile test and / or bending and torsion test and / or friction test and / or rain test and / or salt spray test and / or irradiation aging test and / or mold test.

[0018] Beneficial effects: The solution of this invention can not only simulate mechanical performance tests and environmental tolerance tests on samples under different working conditions, realizing the environmental and mechanical damage coupling test of individual protective equipment, but also solve the technical pain points of traditional test schemes for individual protective equipment, such as "low sample installation efficiency and easy loosening and slippage of samples under the interference of mechanical and environmental factors". This invention achieves mechanical testing by fitting a ring-shaped sample onto a specific sample mounting part and realizing the mechanical test through the relative rotation and movement of the sample mounting part. The sample installation operation is simple and fast, without the need for repeated adjustments. It will not loosen or slip during grinding, rotation, spraying and other tests, ensuring the smooth progress of the test. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the test apparatus when the sample is loaded in the embodiment; Figure 2 yes Figure 1 Enlarged view of a portion at point A; Figure 3 This is a side view of the test apparatus in the embodiment; Figure 4 yes Figure 3 BB line structural cross-sectional view; Figure 5 This is a top view of the test apparatus in the embodiment; Figure 6 This is a three-dimensional structural diagram of the test apparatus when no sample is loaded in the embodiment; Figure 7 yes Figure 6 A magnified view of a portion at point C; Figure 8 yes Figure 6 A magnified view of a portion at point D; Figure 9 This is a cross-sectional view of the structure of the test device in the embodiment when the movable outer ring and the movable inner ring are connected.

[0021] 1-Base, 2-Three-dimensional lifting mechanism, 3-Grinding tool, 4-Spray pipe, 5-Spore suspension spray pipe, 6-Irradiation lamp tube, 7-Movable outer ring, 8-Movable inner ring, 9-Fixed ring, 10-Sample mounting part, 11-Moving cylinder, 12-Rotary motor, 13-Gear, 14-Gear ring, 15-Recovery chamber, 16-Recovery tank, 17-Recovery pipe, 18-Guide inclined plane, 19-Sample, 20-Fixed rod. Detailed Implementation

[0022] The technical solutions 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. Example 1

[0023] Combination Figures 1-9As shown, an environmental and mechanical damage coupling test device for individual soldier protective equipment includes a base 1, a three-dimensional lifting mechanism 2, and a grinding tool 3. The three-dimensional lifting mechanism 2 is mounted on the base 1, and the grinding tool 3 is located on one side of the moving end of the three-dimensional lifting mechanism 2. A spray pipe 4 and a spore suspension spray pipe 5 are mounted on the base 1. A fixing ring 9 is mounted on the base 1 via a fixing rod 20. An irradiation lamp 6 is coaxially arranged at the center of the fixing ring 9 and is mounted on the base 1. A movable outer ring 7 and a movable inner ring 8 are symmetrically arranged above and below the fixing ring 9, and the movable outer ring 7 is coaxial with the fixing ring 9. A sample mounting part 10 for hooking and pulling the sample 19 is provided on the outer side of both the movable outer ring 7 and the fixing ring 9, and the sample mounting parts 10 are equidistantly arranged along the circumference of the fixing ring 9. A moving cylinder 11 is provided on the surface of the fixing ring 9, and the output end of the moving cylinder 11 is connected to the movable inner ring 8. A rotating component for driving the movable outer ring 7 to rotate relative to the movable inner ring 8 is provided on the surface of the movable outer ring 7.

[0024] The rotating assembly includes a rotary motor 12, a gear 13, and a gear ring 14. The rotary motor 12 is mounted on the surface of the movable inner ring 8, the gear ring 14 is disposed on the surface of the movable outer ring 7, the gear 13 meshes with the gear ring 14, and the output end of the rotary motor 12 is connected to the gear 13.

[0025] Among them, the structure inside the active outer ring 7 and the active inner ring 8 is T-shaped.

[0026] The sample mounting parts 10 are all horizontally arranged L-shaped rods with rectangular cross-sections (except for the ends of the L-shaped rods). The suspended ends of the L-shaped rods are provided with protrusions. The protrusions are spaced apart from the outer end faces of the movable outer ring 7 and the fixed ring 9. The protrusions can circumferentially limit the sample. The sample mounting parts 10 connected to the movable outer ring 7 and the sample mounting parts 10 connected to the fixed ring 9 are vertically aligned and have opposite opening directions.

[0027] The base 1 has a recycling chamber 15 inside, a recycling trough 16 on the base 1, and multiple holes communicating with the recycling chamber 15 on the surface of the recycling trough 16. A recycling pipe 17 communicating with the recycling chamber 15 is provided on one side of the base 1.

[0028] The recovery chamber 15 has a guide ramp 18 inside.

[0029] The spray pipe 4 is connected to an external liquid supply device for spraying clean water or salt spray.

[0030] The three-dimensional lifting mechanism 2 has a grinding motor installed in its moving end to drive the grinding tool 3 to rotate, and the grinding tool 3 is detachably connected to the output end of the grinding motor.

[0031] In this invention, the sample 19 used is a ring sample, which can be obtained by sewing together a sheet sample.

[0032] When installing the sample 19, first insert the annular sample 19 laterally from the suspended end of the L-shaped rod so that the sample 19 is fitted onto the sample mounting part 10 connected to the movable outer ring 7. Then, fit the annular sample 19 onto the sample mounting part 10 connected to the fixed ring 9. When removing the sample 19, simply remove the sample 19 laterally from the sample mounting part 10.

[0033] A test method using the environmental and mechanical damage coupling test device in Example 1 includes the following steps: installing an annular sample on the sample mounting part; and conducting the following tests on the sample according to preset test parameters during a set time period: tensile test and / or bending and torsion test and / or friction test and / or rain test and / or salt spray test and / or irradiation aging test and / or mold test. The specific test items to be coupled can be flexibly selected according to the type of protective equipment.

[0034] When applying tensile force to the sample, simply activate the moving cylinder 11 to push out the movable inner ring 8 and drive the sample 19 fixed on the sample mounting part 10 to be axially stretched.

[0035] When applying a torsional force to the sample, simply start the rotary motor 12. The rotary motor 12 drives the gear 13 to rotate. The gear 13, through its meshing with the gear ring 14, drives the movable outer ring 7 to rotate relative to the movable inner ring 8, thereby causing the sample mounting part 10 connected to the movable outer ring 7 to rotate around the center of the movable outer ring 7. The direction of rotation of the movable outer ring 7 is the opening direction of the sample mounting part 10 connected to the movable outer ring 7.

[0036] During the friction test, the three-dimensional lifting mechanism 2 drives the grinding tool 3 to move, so that the grinding tool 3 comes into contact with the installed sample 19. The grinding motor at the moving end of the three-dimensional lifting mechanism 2 is started to drive the grinding tool 3 to rotate. At the same time, the three-dimensional lifting mechanism 2 drives the grinding tool 3 to move on the surface of the sample 19 to carry out the friction test of the sample 19. Different materials of grinding tool 3 can be replaced.

[0037] During rain and salt spray tests, the sample 19 is kept under natural tension. An external clean water supply device is connected to the spray pipe 4 to simulate rain environments of varying intensities. For salt spray tests, the spray pipe 4 is switched to an external salt spray supply device for continuous or intermittent spraying to simulate a high-salt-spray corrosion environment. During the test, the waste spray liquid is collected by the recovery tank 16 on the upper surface of the base 1 through holes into the recovery chamber 15. After being guided by the inclined plane 18, it is discharged through the recovery pipe 17 into an external waste liquid container. After the test, the spray pipe 4 is closed, and the waterproof performance or corrosion condition of the sample 19 surface is checked.

[0038] During the mold erosion test, the sample 19 was kept under natural tension. A mold spore suspension supply device was connected to the spore suspension spray nozzle 5 to spray a spore suspension of standard fungi such as Aspergillus niger onto the test area, ensuring that spores were evenly attached to the surface of the sample 19. The irradiation lamp 6 was activated to maintain a stable ambient light intensity. During the test, the mold growth on the surface of the sample 19 was observed, and the mold level was recorded. After the test, the spore suspension spray nozzle 5 and the irradiation lamp 6 were turned off, and the inside of the device was cleaned and disinfected.

[0039] During the solar aging test, sample 19 was kept under natural tension, and the irradiation lamp 6 was turned on to continuously irradiate sample 19. During the test, the retention rate of fracture strength and the change in appearance of sample 19 were judged. After the test was completed, the irradiation lamp 6 was turned off.

[0040] When environmental and mechanical damage coupling tests are required, after the sample is installed, the irradiation lamp 6, the mold spore liquid supply device, the liquid supply device, the grinding motor, the rotary motor 12, and the moving cylinder 11 are turned on simultaneously to conduct the test.

[0041] When conducting specific tests, the test conditions are mainly carried out in accordance with the relevant standards, including but not limited to GJB / 150 and GJB / 21196, such as: solar radiation intensity 0~1200 W / m², temperature -20℃~80℃, relative humidity 10%RH~98%RH, spray rainfall 2~15 mm / h, salt spray concentration 0.5%~5%; the mechanical loading parameters are: frictional contact pressure 1~20kPa, normal force 1~100 N, sample pre-tightening torque 0.1~5 N·m, and friction cycles 1000~50000.

[0042] In this embodiment, multiple environmental factors and mechanical loads can be coupled synchronously to meet the service conditions of all regions, such as high altitude and cold, hot and humid ocean, and hot and dry desert. The sample can receive uniform light irradiation at 360°. The test pressure, angle and trajectory can be adjusted online to carry out tests such as friction and wear, spraying, salt spray and mold. It can realize arbitrary coupling loading of sunlight + rain + salt spray + hot and humid + mold + friction and wear, which is convenient for individual soldier protective equipment to carry out environmental aging-mechanical wear coupling performance tests under real service conditions. Example 2

[0043] This embodiment simulates the combined service conditions of protective equipment under tensile load and sand / gravel friction in a high-salt-fog environment on an island. A material sample (aramid material) of a bulletproof vest is selected and prepared into a ring-shaped sample 19 according to the method described in Example 1, and then installed on the sample mounting part 10. In one optional scheme: the moving cylinder 11 is activated, the tensile displacement is set to 30 mm, and a constant pre-tensile load is applied to the sample 19 to simulate the tight state when wearing the bulletproof vest; a salt spray liquid supply device is connected to the spray pipe 4, the salt spray concentration is set to 3%, and continuous spraying is performed; a sand / gravel grinding tool 3 is installed at the output end of the grinding motor, the contact friction force between the grinding tool 3 and the sample 19 is set to 12 kPa, and the friction is repeated 10,000 times. The grinding motor speed is 300 r / min, and the three-dimensional lifting mechanism 2 drives the grinding tool 3 to reciprocate along the axial direction of the sample 19. Simultaneously, the moving cylinder 11, the spray pipe 4, and the grinding motor are activated to begin the coupling test, with a total test duration of 48 hours. During the test, the tensile force change, wear amount and surface corrosion of sample 19 were recorded every 6 hours; the recovery tank 16 continuously collected salt spray waste liquid and treated it centrally through the recovery pipe 17. Example 3

[0044] This embodiment simulates the comprehensive service conditions of protective equipment under cyclic tensile and torsional loads caused by tactical movements in a high-altitude, high-sunlight environment. A polyester-cotton blended fabric used in military training uniforms was selected and prepared into a ring-shaped specimen 19 according to the method described in Example 1, which was then mounted on the specimen mounting part 10.

[0045] The irradiation lamp 6 was started and continuous irradiation was maintained. The extension displacement of the moving cylinder 11 was set to 30 mm. Simultaneously, the irradiation lamp 6, the moving cylinder 11, and the rotary motor 12 were started to begin the coupling test. The total test duration was 72 hours. During the test, the tensile force decay, torque decay, and appearance aging of the sample 19 were recorded every 12 hours. The test was automatically terminated when the sample 19 showed obvious damage or its mechanical properties decreased to 50% of the initial value. Example 4

[0046] This embodiment simulates the combined service conditions of protective equipment in a tropical rainforest environment, where it is simultaneously subjected to mold erosion, rain, and periodic tactical friction. Flame-retardant fabric for fire suits was selected and prepared into a ring-shaped sample 19 according to the method described in Example 1, which was then mounted on the sample mounting part 10.

[0047] The spore suspension spray nozzle 5 is connected to an external Aspergillus niger spore liquid supply device, and the spore spray rate is set to 1×10⁻⁶. 6The spore suspension spray nozzle 5 was shut off after 2 hours, and the irradiation lamp 6 was turned on to maintain stable ambient light for 24 hours of mold spore attachment culture. A clean water supply device was connected to the spray pipe 4, and the spray flow rate was set to 2 L / min, using an intermittent spraying mode: spraying for 30 minutes every 2 hours. A rubber grinding tool 3 was installed at the output end of the grinding motor, and the contact pressure between the grinding tool 3 and the sample 19 was set to 15 N. The grinding motor speed was 200 r / min, running for 1 hour every 24 hours to simulate periodic tactical friction. Each test unit was started sequentially according to the above time sequence, with a total test period of 28 days. During the test, the mold grade, wear amount, and waterproof performance changes of the sample 19 were recorded every 7 days. The recovery tank 16 continuously collected rainwater waste liquid to prevent liquid accumulation.

[0048] Compared to traditional sample testing, this invention is more closely aligned with actual working conditions and does not generate liquid accumulation on the surface of sample 19. The irradiation lamp 6 is coaxially positioned at the center of the fixing ring 9, providing 360° uniform irradiation to the surface of the annular sample 19 with a light uniformity of ≥95%. It can also simultaneously couple three major mechanical loads (tensile, torsion, and abrasion) with four environmental factors (sunlight, salt spray, rain, and mold), simulating different working conditions. The recovery chamber 15 solves the problems of waste liquid pollution and equipment corrosion in coupled tests, eliminating the need for manual waste liquid cleaning. The continuous operating time of the device is increased to over 720 hours, and the mold spore recovery rate is ≥98%, avoiding biosafety risks.

[0049] Traditional individual protective equipment testing devices use clamping plates (clamps, bolted clamps / clamps) to fix the specimens. Disassembly and assembly require specialized tools. Installing a single specimen takes 3-5 minutes, and installing 50 specimens in a batch test takes over 150 minutes, resulting in extremely low efficiency. Specimen 19 exhibits a slippage rate exceeding 65% under tensile force and an oily testing environment (oil adhering to the specimen surface), and a slippage rate exceeding 60% under bending and torsional force and an oily testing environment (oil adhering to the specimen surface). Disassembly of a single specimen takes 2-3 minutes. This invention... Example 1 uses the aforementioned experimental device with a specific structure. The installation time for a single specimen 19 is no more than 12 seconds, and the total installation time for 50 specimens in the batch test is ≤10 minutes, which is more than 20 times more efficient than the traditional method. Moreover, the slippage rate of specimen 19 under tensile force and oily test environment (oil adhering to the specimen surface) is 0. The slippage rate of specimen 19 under bending torsion and oily test environment (oil adhering to the specimen surface) is higher than 60%, and the mechanical loading error is ≤±2%, which meets the accuracy requirements of military testing. The disassembly time for a single specimen is 3~5 seconds.

[0050] In existing methods, fabric friction tests are conducted independently, with a dedicated friction disc for dry friction testing, followed by a transfer to another instrument for wet friction testing. In this invention, those skilled in the art can simultaneously perform dry and wet friction (alternating dry and wet) tests, enabling flexible and rapid switching and seamless integration between the two methods.

[0051] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An environmental and mechanical damage coupling test device for individual soldier protective equipment, characterized in that: The device includes a base (1), a three-dimensional lifting mechanism (2), and a polishing tool (3). The three-dimensional lifting mechanism (2) is mounted on the base (1), and the polishing tool (3) is located on one side of the moving end of the three-dimensional lifting mechanism (2). A spray pipe (4) and a spore suspension spray pipe (5) are mounted on the base (1). A fixing ring (9) is mounted on the base (1) via a fixing rod (20). An irradiation lamp (6) is coaxially arranged at the center of the fixing ring (9), and the irradiation lamp (6) is mounted on the base (1). Movable outer rings (7) are symmetrically arranged above and below the fixing ring (9). The movable outer ring (7) and the fixed ring (9) are coaxially arranged. The movable outer ring (7) and the fixed ring (9) are both provided with a sample mounting part (10) for hooking the sample (19). The sample mounting part (10) is equidistantly arranged along the circumferential direction of the fixed ring (9). The fixed ring (9) is provided with a moving cylinder (11). The output end of the moving cylinder (11) is connected to the movable inner ring (8). The movable outer ring (7) is provided with a rotating component for driving the movable outer ring (7) to rotate relative to the movable inner ring (8).

2. The environmental and mechanical damage coupling test device for individual soldier protective equipment as described in claim 1, characterized in that: The rotating assembly includes a rotary motor (12), a gear (13) and a gear ring (14). The rotary motor (12) is mounted on the surface of the movable inner ring (8), and the gear ring (14) is disposed on the surface of the movable outer ring (7). The gear (13) meshes with the gear ring (14), and the output end of the rotary motor (12) is connected to the gear (13).

3. The environmental and mechanical damage coupling test device for individual soldier protective equipment as described in claim 1, characterized in that: The structure inside the active outer ring (7) and the active inner ring (8) is T-shaped.

4. The environmental and mechanical damage coupling test device for individual soldier protective equipment as described in claim 1, characterized in that: The sample mounting parts (10) are all horizontally arranged L-shaped rods. The suspended end of the L-shaped rod is provided with a protrusion. The protrusion is left with a gap between the outer end face of the movable outer ring (7) and the outer end face of the fixed ring (9). The protrusion can limit the sample in the circumferential direction. The sample mounting parts (10) connecting the movable outer ring (7) and the sample mounting parts (10) connecting the fixed ring (9) are vertically aligned and have opposite opening directions.

5. The environmental and mechanical damage coupling test device for individual soldier protective equipment as described in claim 1, characterized in that: The base (1) has a recycling chamber (15) inside, a recycling trough (16) on the base (1), and a plurality of holes communicating with the recycling chamber (15) are opened on the surface of the recycling trough (16). A recycling pipe (17) communicating with the recycling chamber (15) is provided on one side of the base (1).

6. The environmental and mechanical damage coupling test device for individual soldier protective equipment as described in claim 5, characterized in that: The interior of the recovery chamber (15) has a guide ramp (18).

7. The environmental and mechanical damage coupling test device for individual soldier protective equipment as described in claim 5, characterized in that: The spray pipe (4) is connected to an external liquid supply device for spraying out clean water spray or salt spray.

8. The environmental and mechanical damage coupling test device for individual soldier protective equipment as described in any one of claims 4-7, characterized in that: The cross-section of the L-shaped rod is rectangular.

9. A test method using the environmental and mechanical damage coupling test apparatus according to any one of claims 1-8, characterized in that the steps are as follows: include: The annular specimen (19) is installed on the specimen mounting part (10); during the set time period, the specimen (19) is subjected to the following tests according to the preset test parameters: tensile test and / or bending and torsion test and / or friction test and / or rain test and / or salt spray test and / or irradiation aging test and / or mold test.

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