A wet heat environment force detection test device for a bulletproof vest

Abstract

The application discloses a kind of wet heat environment force detection test device of body armor, belong to equipment test technical field.It includes multistage installation device, double-layer overturning barrel, butt joint cover plate, rotary drive device, air temperature control device, friction mechanism, humanoid wearing frame;Double-layer overturning barrel is rotationally installed on mounting bracket;Multistage installation device is installed on mounting bracket, and the movable end of multistage installation device is coaxially arranged with double-layer overturning barrel;Humanoid wearing frame is fixedly connected to the movable end of multistage installation device;Butt joint cover plate is rotationally arranged on multistage installation device;Rotary drive device is fixedly installed on mounting bracket, and the driving end of rotary drive device is drivingly connected with double-layer overturning barrel;Air temperature control device is arranged in the interior of double-layer overturning barrel;Friction mechanism is provided with two, and is respectively installed in the interior of butt joint cover plate and double-layer overturning barrel, and the friction end of friction mechanism is in contact with body armor, and the application can effectively simulate real use environment, improve detection effect.

Description

A test device for testing the force of bulletproof vests in a damp and hot environment Technical Field

[0001] This invention relates to a testing device for testing the force of bulletproof vests in a damp and hot environment, belonging to the field of equipment testing technology. Background Technology

[0002] In the field of individual soldier equipment testing technology, especially in the durability and environmental adaptability testing of body armor, it is crucial to realistically simulate the impact of actual combat environments on body armor performance. When combatants perform tactical maneuvers such as lying down, rolling, and crawling in harsh battlefield environments with high temperatures and humidity, their body armor not only bears complex mechanical loads, such as compression, torsion, and friction, but also suffers changes in material properties, decreased wearing comfort, and even damage to protective functions due to factors such as sweat, rainwater, and surface mud and sand.

[0003] Currently, existing technologies include testing methods that use roller-type devices for tumbling pretreatment of bulletproof vests. For example, Chinese invention patent CN120275211B discloses a bulletproof vest tumbling pretreatment bench testing device and its usage method. This device places the bulletproof vest sample inside a rotatable conventional roller, and the rotation of the roller causes the bulletproof vest to tumble and fall randomly to simulate its deformation during tactical movements. While this device can test the fatigue resistance and seam strength of the bulletproof vest material to some extent, its testing mode has a fundamental limitation: the bulletproof vest is in an unrestrained, free-tumbling state inside the roller, which is completely different from the actual working conditions of wearing it on the human body and moving with the body.

[0004] This free-tumbling test method has the following main drawbacks: It cannot simulate the mechanical environment under actual wearing conditions. In real use, body armor fits tightly against the human torso, and its stress points, stress distribution, and loads at seams are all related to the human's posture. The random tumbling of existing devices cannot reproduce this dynamic, human-coordinated mechanical condition, making it impossible to effectively assess the structural stability of the body armor under wearing conditions, as well as the durability of the shoulder straps and fixing devices. Existing technology simulates friction by setting replaceable friction blocks inside the roller, but this contact is random, intermittent, and uneven, failing to simulate the linear, continuous, and controllable friction effect generated by the continuous scraping of the human body against the ground and obstacles in actual combat. This results in insufficient realism in testing the abrasion resistance of the body armor fabric and the surface treatment layer. Consequently, existing solutions relatively simply superimpose mechanical and environmental tests, leading to a significant discrepancy between the test results and the performance of the body armor in real, complex battlefield environments. Summary of the Invention

[0005] To address the aforementioned problems in the existing technology, this invention provides a test device for testing the force of bulletproof vests in a damp and hot environment. By using an environmental simulation roller, the device can effectively simulate the real usage environment and improve the accuracy of the test results.

[0006] This invention is achieved through the following technical solution: a bulletproof vest damp-heat environment force testing device, comprising a mounting bracket, an environmental simulation roller mounted on the mounting bracket, the environmental simulation roller comprising a multi-segment mounting device, a double-layer flip-over drum, a docking cover plate, a rotation drive device, a temperature control device, a friction mechanism, and a human-shaped wearing frame for wearing and fixing the bulletproof vest; the double-layer flip-over drum is rotatably mounted on the mounting bracket; the multi-segment mounting device is mounted on the mounting bracket, the movable end of the multi-segment mounting device being coaxially arranged with and slidably connected to the double-layer flip-over drum; the human-shaped wearing frame is fixedly connected to the movable end of the multi-segment mounting device; the docking cover plate is rotatably mounted on the movable end of the multi-segment mounting device corresponding to the open end of the double-layer flip-over drum, and the docking cover plate can be engaged with the open end of the double-layer flip-over drum; the rotation drive device is fixedly mounted on the mounting bracket, the drive end of the rotation drive device being drively connected to the double-layer flip-over drum; the temperature control device is located inside the double-layer flip-over drum; two friction mechanisms are provided, and are respectively installed inside the docking cover plate and the double-layer flip-over drum, the friction ends of the friction mechanisms contacting the bulletproof vest worn on the human-shaped wearing frame.

[0007] In this invention, the docking cover plate, driven by a multi-segment installation device, can dock with the double-layer flipping barrel, forming a relatively enclosed test space inside the double-layer flipping barrel. A humanoid wearing frame is located within this test space, and the friction ends of both friction mechanisms can contact the bulletproof vest worn on the humanoid wearing frame. A temperature control device is used to adjust the temperature and humidity of the test space inside the double-layer flipping barrel to simulate a hot and humid environment. When testing with this invention, a certain amount of sand is pre-stored inside the double-layer flipping barrel to simulate the impact of surface mud and sand on the bulletproof vest in actual combat. The temperature and humidity of the test space inside the double-layer flipping barrel are set by the temperature control device to simulate a hot and humid environment. The double-layer flipping barrel rotates under the drive of the rotational drive device, causing the docking cover plate to rotate as well. The two friction mechanisms also rotate together. During rotation, the friction ends of the two friction mechanisms rub against the bulletproof vest worn on the humanoid wearing frame. During rotation, this simulates the force experienced by a combatant performing tactical maneuvers such as lying down, rolling, and crawling, including complex mechanical loads such as compression and torsion.

[0008] Preferably, the double-layer tilting drum has a storage chamber for storing sand inside the drum wall, and the storage chamber has multiple scraper strips inside. The inner wall of the double-layer tilting drum has several discharge holes, which are connected to the storage chamber.

[0009] Preferably, the multi-segment mounting device includes a first sliding mounting shaft, a second sliding mounting shaft, a first return spring, and a linear actuator; the first sliding mounting shaft is slidably mounted on the axis of the double-layer flipping barrel, and a limiting mounting hole is provided at the end of the first sliding mounting shaft. A mounting platform is provided on the first sliding mounting shaft, and a human-shaped wearable frame is fixedly connected to the mounting platform; the second sliding mounting shaft is slidably disposed in the limiting mounting hole at the end of the first sliding mounting shaft; the first return spring is disposed between the second sliding mounting shaft and the first sliding mounting shaft; the linear actuator is fixedly mounted on the mounting bracket, and the output end of the linear actuator is connected to the second sliding mounting shaft.

[0010] Preferably, the temperature control device includes a heating element and a humidifier; the heating element is fixedly installed inside the double-layered rotating drum; the humidifier is installed outside the double-layered rotating drum, and the output end of the humidifier is connected to the inside of the double-layered rotating drum.

[0011] Preferably, the temperature control device also includes multiple guide vanes disposed on the inner wall of the double-layered tilting barrel.

[0012] Preferably, the friction mechanism includes an arranging mounting seat and a limiting mounting strip; the arranging mounting seat is fixedly connected to the inner wall of the double-layer flipping barrel / connecting cover plate, and the arranging mounting seat is provided with multiple limiting insert rails; multiple limiting mounting strips are provided and distributed in the limiting insert rails, the limiting mounting strips are detachably connected to the limiting insert rails, and each limiting mounting strip is provided with several abutting scrapers.

[0013] Preferably, the wearable humanoid frame includes a fixed mounting block, a movable humanoid block, an elastic reset component, a fixing clip, and an elastic pull cord; the fixed mounting block is fixedly mounted on the movable end of the multi-segment mounting device; the movable humanoid block is rotatably mounted on the fixed mounting block; the elastic reset component is mounted on the fixed mounting block, and the telescopic end of the elastic reset component is connected to the movable humanoid block; multiple fixing clips are provided, and the bottom of the fixing clips is connected to the lower part of the fixed mounting block through the elastic pull cord; a bending guide component is also provided, which includes a contact roller rotatably mounted on the movable humanoid block and a movable guide ring fixedly mounted inside the double-layer flipping barrel, the movable guide ring having a guide protrusion that can contact the contact roller.

[0014] Preferably, the humanoid wearable frame also includes multiple pressure airbags, which are distributed on the fixed mounting block and the humanoid movable block.

[0015] Preferably, the elastic reset assembly includes a fixed mounting sleeve, a telescopic block, a connecting pull rope, and a second reset spring; the fixed mounting sleeve is fixedly installed inside the fixed mounting block; the telescopic block is slidably installed on the fixed mounting sleeve; one end of the connecting pull rope is fixedly connected to the telescopic block, and the other end is connected to the human-shaped movable block; the second reset spring is disposed between the telescopic block and the fixed mounting sleeve.

[0016] The beneficial effects of this invention are:

[0017] 1. This invention uses a human-shaped wearing frame to tightly secure the bulletproof vest, simulating a real-world wearing condition. During testing, the human-shaped wearing frame moves in tandem with multiple installation devices and a double-layered rotating drum, closely linking the force points, stress distribution, and seam loads of the bulletproof vest to the human body's movement posture. This reproduces dynamic mechanical conditions coordinated with human movement. Compared to the unrestrained free tumbling state of bulletproof vests within the drum in existing technologies, this device effectively evaluates the structural stability of the bulletproof vest in the wearing state, as well as the durability of the shoulder straps and fixing devices. This significantly improves the consistency between test results and actual working conditions, providing a more accurate and reliable basis for optimizing bulletproof vest performance.

[0018] 2. This invention integrates a temperature control device, a friction mechanism, and a sand simulation system, achieving a composite stress field simulation that coordinates dynamic human movement, continuous directional friction, and a humid and hot environment. The temperature control device can precisely regulate the temperature and humidity inside the double-layered rotating drum, simulating the harsh battlefield environment of high temperature and high humidity. The friction mechanism, in contact with the bulletproof vest, simulates the linear, continuous, and controllable friction effect generated by the continuous scraping of the human body against the ground and obstacles during combat as the double-layered rotating drum rotates, effectively testing the abrasion resistance of the bulletproof vest fabric and its surface treatment layer. The sand stored inside contacts the surface of the bulletproof vest during the rotating motion, further simulating the influence of factors such as surface mud and sand. This comprehensive simulation method overcomes the shortcomings of existing technologies that simply superimpose mechanical and environmental tests, making the test results closer to the performance of the bulletproof vest in a real and complex battlefield environment, thus improving the fidelity and effectiveness of the test. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural schematic diagram of a bulletproof vest wet and hot environment force testing device according to the present invention.

[0020] Figure 2 is a three-dimensional structural schematic diagram of a bulletproof vest wet and hot environment force testing device according to the present invention.

[0021] Figure 3 is a front view of a bulletproof vest wet and hot environment force testing device according to the present invention.

[0022] Figure 4 is a cross-sectional view of AA in Figure 3.

[0023] Figure 5 is a partial structural schematic diagram of the double-layer flipping barrel, friction mechanism, and bending guide assembly in a bulletproof vest wet and hot environment force testing device of the present invention.

[0024] Figure 6 is a three-dimensional structural diagram of the friction mechanism in a bulletproof vest wet and hot environment force testing device of the present invention.

[0025] Figure 7 is a three-dimensional schematic diagram of a human-shaped wearing frame wearing a bulletproof vest in a damp and hot environment force testing device of the present invention.

[0026] Figure 8 is a three-dimensional structural diagram of the human-shaped wearing frame in the bulletproof vest damp heat environment force testing device of the present invention.

[0027] Figure 9 is a rear view of the human-shaped wearing frame in the bulletproof vest damp heat environment force testing device of the present invention.

[0028] Figure 10 is a cross-sectional view of BB in Figure 9.

[0029] The numbers on the map are:

[0030] 1. Bulletproof vest; 2. Mounting bracket; 3. Double-layer tilting drum; 31. Material drop hole; 32. Scraper strip; 4. Multi-segment mounting device; 41. First sliding mounting shaft; 42. Second sliding mounting shaft; 43. First return spring; 44. Linear actuator; 5. Docking cover plate; 6. Rotary drive device; 7. Temperature control device; 71. Heating tube; 72. Humidifier; 73. Guide vane; 8. Friction mechanism; 81. Arrangement mounting base; 811. Limiting insert. 82. Track; 82. Limiting mounting strip; 821. Abutment scraper; 9. Human-shaped wearable frame; 91. Fixed mounting block; 92. Human-shaped movable block; 921. Pressure airbag; 93. Elastic reset assembly; 931. Fixed mounting sleeve; 932. Telescopic block; 933. Connecting pull rope; 934. Second reset spring; 94. Bending guide assembly; 941. Abutment roller; 942. Movable guide ring; 943. Guide protrusion; 95. Fixing clamp; 96. Elastic pull rope. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Referring to Figures 1 to 10, a test device for testing the force of bulletproof vests in a damp and hot environment includes a mounting bracket 2 and an environmental simulation roller mounted on the mounting bracket 2. The environmental simulation roller includes a multi-segment mounting device 4, a double-layer rotating drum 3, a docking cover plate 5, a rotation drive device 6, a temperature control device 7, a friction mechanism 8, and a human-shaped wearable frame 9. The double-layer rotating drum 3 is horizontally arranged and rotatably mounted on the mounting bracket 2, with one end closed and the other end open. The multi-segment mounting device 4 includes a fixed end and a movable end. The fixed end of the multi-segment mounting device 4 is mounted on the mounting bracket 2, and the movable end of the multi-segment mounting device 4 is coaxially arranged with the double-layer rotating drum 3 and slidably connected to the double-layer rotating drum 3. The human-shaped wearable frame 9 is fixedly connected to the movable end of the multi-segment mounting device 4 and is used to wear and fix the bulletproof vest 1. Its shape resembles the upper body of a human. The docking cover plate 5 is rotatably arranged on the movable end of the multi-segment mounting device 4 corresponding to the open end of the double-layer rotating drum 3. The docking cover plate 5 can be matched with the open end of the double-layer rotating drum 3. The two layers are connected to form a relatively closed test space inside the double-layer rotating barrel 3. After the docking cover 5 is docked with the open end of the double-layer rotating barrel 3, it can rotate together with the double-layer rotating barrel 3. The rotation drive device 6 is used to drive the double-layer rotating barrel 3 to rotate. The rotation drive device 6 is fixedly installed on the mounting bracket 2, and the drive end of the rotation drive device 6 is connected to the double-layer rotating barrel 3 for transmission. The temperature control device 7 is installed inside the double-layer rotating barrel 3. The temperature control device 7 is used to adjust the temperature and humidity inside the double-layer rotating barrel 3 to simulate a high temperature and high humidity environment. There are two friction mechanisms 8, which are fixedly installed inside the docking cover 5 and the double-layer rotating barrel 3 respectively. The friction end of the friction mechanism 8 is in contact with the bulletproof vest 1 worn on the humanoid wearer 9.

[0033] Working process: The multi-segment installation device 4 is in the initial position. The movable end of the multi-segment installation device 4 drives the docking cover plate 5 away from the double-layer tilting barrel 3, so that the internal space of the double-layer tilting barrel 3 is opened. At this time, a certain amount of sand is pre-stored inside the double-layer tilting barrel 3 to prepare for the subsequent simulation of harsh environment.

[0034] The staff correctly put on the bulletproof vest 1 to be tested and fixed it on the human-shaped wearing frame 9. The human-shaped wearing frame 9 is fixedly installed on the movable end of the multi-segment installation device 4 to ensure that the bulletproof vest 1 fits tightly with the human-shaped wearing frame 9, simulating the real wearing state and ensuring that the stress of the bulletproof vest 1 during the test is closer to the actual working conditions.

[0035] When the multi-section installation device 4 is activated, its movable end drives the docking cover plate 5 and the human-shaped wearable frame 9 to move synchronously into the double-layer flipping barrel 3 until the human-shaped wearable frame 9 and the bulletproof vest 1 are completely inside the double-layer flipping barrel 3, and the docking cover plate 5 and the double-layer flipping barrel 3 are well docked to form a relatively closed test space, preventing the sand from leaking out during the test, and providing a stable environment for subsequent tests.

[0036] The rotary drive device 6 is activated, driving the double-layer flipping barrel 3 to rotate around its axis. During the rotation of the double-layer flipping barrel 3, the docking cover plate 5 and the two friction mechanisms 8 rotate synchronously. Since the humanoid wearing frame 9 simulates the human body shape, the two friction mechanisms 8 rub against the bulletproof vest 1. During the rotation, it can simulate the force conditions when a combatant performs tactical actions such as lying down, rolling, and crawling, including complex mechanical loads such as compression and torsion, effectively assessing the structural stability of the bulletproof vest 1 in the wearing state, as well as the durability of the shoulder straps and fixing devices.

[0037] The temperature control device 7 can adjust the temperature and humidity inside the double-layer flipping barrel 3 according to preset parameters to simulate the harsh battlefield environment of high temperature and high humidity, examine the changes in the material properties of the bulletproof vest 1 under such hot and humid conditions, such as whether the material experiences performance degradation or deformation due to the hot and humid environment, and comprehensively evaluate the environmental adaptability of the bulletproof vest 1.

[0038] When the double-layered tilting drum 3 rotates, the sand stored inside moves synchronously with the tilting motion and continuously comes into contact with the surface of the bulletproof vest 1. The contact of the sand further simulates the impact of factors such as surface mud and sand on the bulletproof vest 1 in actual combat, enhances the similarity between the test environment and the real complex battlefield environment, and makes the test results more reflective of the performance of the bulletproof vest 1 in actual use.

[0039] As shown in Figures 1 to 5, the double-layer tilting drum 3 has a storage chamber inside its wall. The storage chamber is equipped with multiple scraper strips 32. The storage chamber is used to store sand. The inner wall of the double-layer tilting drum 3 is also equipped with several discharge holes 31, which are connected to the storage chamber.

[0040] During the rotation of the double-layered tilting drum 3, multiple scraper strips 32 in the storage chamber rotate with the drum 3, causing the sand stored at the bottom to rotate and rise to the top of the drum 3. Once the sand reaches the top, due to gravity, some of it falls through the drop holes 31 on the inner wall of the drum 3, directly contacting the surface of the tested bulletproof vest 1. This cyclical movement and falling process of the sand simulates the continuous impact and friction of surface mud and sand on the bulletproof vest 1 in actual combat, further enhancing the similarity between the test environment and the real complex battlefield environment, making the test results more accurately reflect the performance of the bulletproof vest 1 in actual use.

[0041] Referring to Figures 1 to 4, the multi-segment mounting device 4 includes a first sliding mounting shaft 41, a second sliding mounting shaft 42, a first return spring 43, and a linear actuator 44. The first sliding mounting shaft 41 is slidably mounted on the axial center of the double-layer flipping barrel 3. A limiting mounting hole is provided at the end of the first sliding mounting shaft 41, and a mounting platform is provided on the first sliding mounting shaft 41. This mounting platform is a mounting plane, and the human-shaped wearable frame 9 is fixedly connected to the mounting platform. The second sliding mounting shaft 42 is slidably disposed in the limiting mounting hole at the end of the first sliding mounting shaft 41. The first return spring 43 is disposed within the limiting mounting hole at the end of the first sliding mounting shaft 41 and is connected between the second sliding mounting shaft 42 and the first sliding mounting shaft 41. The fixed end of the linear actuator 44 is fixedly mounted on the mounting bracket 2, and the output end of the linear actuator 44 is connected to the second sliding mounting shaft 42. The second sliding mounting shaft 42 is rotatably connected to the docking cover plate 5. In this embodiment, the output end of the linear actuator 44 is connected to the second sliding mounting shaft 42 through a connecting plate.

[0042] In the initial position before testing, the second sliding mounting shaft 42 in the multi-segment mounting device 4 is in the designated position, driving the docking cover 5 away from the opening end of the double-layer flipping barrel 3. At this time, the first return spring 43 between the second sliding mounting shaft 42 and the first sliding mounting shaft 41 is in an expanded state. The first sliding mounting shaft 41 is slidably mounted on the axis of the double-layer flipping barrel 3. At this time, the mounting platform is on the outside of the double-layer flipping barrel 3, providing convenient operating space for the staff to correctly put on and fix the bulletproof vest 1 to be tested on the human-shaped wearing frame 9. The human-shaped wearing frame 9 is fixedly mounted on the mounting platform to ensure that the bulletproof vest 1 is in the appropriate position in the initial state, simulating the preparation state before actual wearing.

[0043] Once the bulletproof vest 1 is donned, the linear actuator 44 is activated. The output of the linear actuator 44 is connected to the second sliding mounting shaft 42, which pushes the second sliding mounting shaft 42 to move. During this movement, the second sliding mounting shaft 42 generates a thrust on the first sliding mounting shaft 41 via the first return spring 43, pushing the first sliding mounting shaft 41 to move along the axis of the double-layer flipping barrel 3 into the interior of the double-layer flipping barrel 3. The first sliding mounting shaft 41 drives the humanoid wearing frame 9 fixed on the mounting platform to move synchronously until the first sliding mounting shaft 41 is pushed to the designated position and stops.

[0044] At this point, the linear actuator 44 continues to apply thrust. Since the first sliding mounting shaft 41 has reached the designated position and cannot move further, the second sliding mounting shaft 42 will move towards the limiting mounting hole inside the first sliding mounting shaft 41 under the thrust. During this process, the first return spring 43 is compressed. As the second sliding mounting shaft 42 moves, the docking cover 5, which is rotatably connected to it, also gradually approaches the double-layer tilting barrel 3. When the second sliding mounting shaft 42 moves to the appropriate position, the docking cover 5 and the open end of the double-layer tilting barrel 3 come into close contact, forming a relatively closed test space. This closed space can effectively prevent the sand material pre-stored inside the double-layer tilting barrel 3 from leaking out during subsequent testing, and at the same time provide a stable environment for the bulletproof vest 1 to be tested under simulated combined environments such as humidity, heat, mechanics, and sand contact.

[0045] During the test, the rotary drive device 6 drives the double-layer tilting barrel 3 to rotate around its axis. Since the second sliding mounting shaft 42 is rotatably connected to the docking cover plate 5, the rotation of the double-layer tilting barrel 3 causes the docking cover plate 5 to rotate synchronously. The first sliding mounting shaft 41 and the second sliding mounting shaft 42 remain relatively stationary under the fixed constraint of the linear actuator 44 and do not rotate with the double-layer tilting barrel 3 and the docking cover plate 5. Because the humanoid wearable frame 9 is fixedly mounted on the mounting platform of the first sliding mounting shaft 41, the humanoid wearable frame 9 also remains fixed during the test.

[0046] At this time, the friction ends of the two friction mechanisms 8, which are respectively installed inside the docking cover plate 5 and the double-layer flipping barrel 3, come into contact with the bulletproof vest 1 fixed on the humanoid wearing frame 9. As the docking cover plate 5 and the double-layer flipping barrel 3 rotate, the friction mechanisms 8 rotate accordingly and generate friction with the surface of the bulletproof vest 1, simulating the force situation when a combatant performs tactical actions such as lying down, rolling, and crawling.

[0047] Referring to Figures 1 to 4, the temperature control device 7 includes a heating element 71 and a humidifier 72. The heating element 71 is fixedly installed inside the double-layered tilting drum 3. The humidifier 72 is located on the outside of the double-layered tilting drum 3, and its output end is connected to the inside of the double-layered tilting drum 3. The heating element 71 can be electrically heated, and the power supply for the heating element 71 and the humidifier 72 adopts existing technology, such as using a conductive slip ring as described in existing technology.

[0048] During testing, the heating element 71 and humidifier 72 work together according to preset temperature and humidity parameters. The control system controls the operating status of the heating element 71 and humidifier 72 according to the set test conditions. When a high-temperature and high-humidity environment needs to be simulated, the heating element 71 and humidifier 72 are activated. The heating element 71 raises the internal temperature of the double-layered rotating tank 3, and the humidifier 72 increases the internal humidity. Together, they rapidly bring the internal environment of the double-layered rotating tank 3 to the preset high-temperature and high-humidity state. Temperature and humidity sensors are installed inside the double-layered rotating tank 3. During testing, these sensors monitor the changes in temperature and humidity inside the double-layered rotating tank 3 in real time and feed the monitoring data back to the control system. The control system dynamically adjusts the operating parameters of the heating element 71 and humidifier 72 based on the feedback data to ensure that the temperature and humidity inside the double-layered rotating tank 3 remain stable within the preset range. This provides a stable and accurate high-temperature and high-humidity testing environment for the bulletproof vest 1, thereby comprehensively examining the changes in the material properties of the bulletproof vest 1 under such humid and hot conditions.

[0049] Humidifier 72 is existing technology and will not be discussed further here.

[0050] Referring to Figures 1 to 5, the temperature control device 7 also includes multiple guide vanes 73 disposed on the inner wall of the double-layer tilting drum 3. The guide vanes 73 are arranged on the inner wall of the double-layer tilting drum 3 near the output end of the heater and humidifier 72.

[0051] During the rotation of the double-layered tilting barrel 3, the internal air undergoes relative motion due to the barrel's rotation, forming an initial airflow. The presence of the guide vanes 73 alters the flow direction and velocity distribution of this initial airflow. When the airflow contacts the guide vanes 73, it flows along their surface and changes direction under their guidance. The guide vanes 73 cause acceleration and reversal effects during airflow, thus creating an orderly airflow circulation within the double-layered tilting barrel 3. When the heating tube 71 heats and raises the barrel's internal temperature, the airflow circulation formed by the rotation of the guide vanes 73 rapidly carries and diffuses the heat generated by the heating tube 71 to all areas of the double-layered tilting barrel 3. During airflow, heat is transferred from the surface of the heating tube 71 to the air via convection heat transfer and is evenly distributed throughout the barrel's internal space with the airflow. This efficient heat diffusion mechanism allows the internal temperature of the double-layered tilting barrel 3 to rise rapidly and remain uniformly distributed, avoiding localized excessively high or low temperatures and providing a stable high-temperature testing environment for the bulletproof vest 1. Similarly, when the humidifier 72 increases air humidity by atomizing water and delivering it to the container through its output end, the airflow circulation formed by the rotation of the guide vanes 73 also guides and diffuses the water mist produced by the humidifier 72. After the water mist enters the double-layered rotating container 3, it is quickly dispersed throughout the entire container space under the carry-on airflow, mixing thoroughly with the air to achieve a uniform increase in humidity. The presence of the guide vanes 73 allows the water mist to cover all parts of the bulletproof vest 1 more quickly, ensuring that the bulletproof vest 1 is in a uniform high-humidity environment during the test, thus improving the accuracy and reliability of the test.

[0052] Referring to Figures 1 to 6, the friction mechanism 8 includes an arrangement mounting base 81 and limiting mounting strips 82. The arrangement mounting base 81 is fan-shaped. The arrangement mounting bases 81 of the two friction mechanisms 8 are respectively fixedly connected to the inner wall of the double-layer tilting barrel 3 and the inner wall of the docking cover plate 5. To ensure the safe operation of the device, a bushing is provided at the lower part of the arrangement mounting base 81, which is fitted onto the first sliding mounting shaft 41. The bushing and the first sliding mounting shaft 41 can slide in contact or not. The arrangement mounting base 81 is provided with multiple limiting insertion rails 811. Multiple limiting mounting strips 82 are provided and distributed in the limiting insertion rails 811 on the arrangement mounting base 81. The limiting mounting strips 82 are detachably connected to the limiting insertion rails 811. Several abutment scrapers 821 are evenly provided on each limiting mounting strip 82.

[0053] The mounting base 81 provides a stable mounting foundation for the friction mechanism 8, and multiple limiting insert rails 811 on it provide precise installation positions and guidance for the limiting mounting strips 82. The limiting mounting strips 82 are detachably distributed within the limiting insert rails 811. This detachable design allows for the replacement of limiting mounting strips 82 of different specifications or materials according to different testing requirements, thereby adjusting the friction effect of the friction mechanism 8 on the bulletproof vest 1. Each limiting mounting strip 82 is provided with several abutment scrapers 821. These abutment scrapers 821 are components that directly contact the bulletproof vest 1 and generate friction force; their even distribution ensures uniform friction on the surface of the bulletproof vest 1.

[0054] During the rotation of the double-layered rotating barrel 3, the abutment scrapers 821 distributed on the limiting mounting strips 82 will come into direct contact with the surface of the bulletproof vest 1 worn on the humanoid wear frame 9. As the double-layered rotating barrel 3 continues to rotate, the abutment scrapers 821 and the bulletproof vest 1 continue to rub against each other.

[0055] Referring to Figures 4 to 10, the humanoid wearable frame 9 includes a fixed mounting block 91, a humanoid movable block 92, an elastic reset component 93, a fixing clip 95, and an elastic pull rope 96. The lower part of the fixed mounting block 91 is fixedly mounted on the movable end of the multi-segment mounting device 4; the humanoid movable block 92 is rotatably connected to the fixed mounting block 91 via a rotating shaft; the elastic reset component 93 is mounted on the fixed mounting block 91, and the telescopic end of the elastic reset component 93 is connected to the humanoid movable block 92; multiple fixing clips 95 are provided, and the bottom of the fixing clips 95 is connected to the lower part of the fixed mounting block 91 via the elastic pull rope 96. A bending guide component 94 is also provided, which includes an abutment roller 941 rotatably mounted on the humanoid movable block 92 and a movable guide ring 942 fixedly mounted inside the double-layer flipping barrel 3. The movable guide ring 942 is coaxially arranged with the double-layer flipping barrel 3, and the movable guide ring 942 is provided with a guide protrusion 943 that can contact the abutment roller 941.

[0056] With the multi-segment installation device 4 in its initial position, the docking cover 5 away from the double-layer flipping barrel 3, and the internal space of the double-layer flipping barrel 3 open, the staff correctly puts on and secures the bulletproof vest 1 to be tested onto the humanoid movable block 92. At this time, the elastic reset component 93 is in its natural state, and its telescopic end applies a certain pulling or elastic force to the humanoid movable block 92, so that the fixed installation block 91 and the humanoid movable block 92 remain in a vertical wearing state, simulating the wearing posture of the bulletproof vest 1 when the human body is standing normally. At the same time, multiple fixing clips 95 are used to firmly clamp the bottom of the bulletproof vest 1, and the elastic pull rope 96 is in a moderately stretched state, further ensuring that the bulletproof vest 1 fits tightly with the humanoid movable block 92, simulating the real wearing state, and ensuring that the stress on the bulletproof vest 1 during the test is closer to the actual working conditions.

[0057] When the rotary drive device 6 is activated to rotate the double-layered tilting barrel 3 around its axis, the bending guide assembly 94 applies a pushing force to the humanoid movable block 92. Since the humanoid movable block 92 is rotatably connected to the fixed mounting block 91, under the pushing force of the bending guide assembly 94, the humanoid movable block 92 rotates around the axis, making a bending motion, simulating the body posture changes of a wearer performing tactical actions. This motion simulation allows the bulletproof vest 1 to withstand complex mechanical loads similar to those generated during actual human activity during testing, including compression and torsion, effectively evaluating the structural stability of the bulletproof vest 1 in the wearing state, as well as the durability of the shoulder straps and fixing devices. The working principle of the bending guide assembly 94: Since the movable guide ring 942 is fixed inside the double-layered tilting barrel 3, the movable guide ring 942 rotates synchronously with the double-layered tilting barrel 3. During rotation, the guide protrusion 943 on the movable guide ring 942 gradually approaches and eventually contacts the contact roller 941. When the guide protrusion 943 contacts the abutting roller 941, the surface shape and tilt angle of the guide protrusion 943 exert a lateral pushing force on the abutting roller 941. Since the abutting roller 941 is mounted on the humanoid movable block 92, and the humanoid movable block 92 is rotatably connected to the fixed mounting block 91, under the pushing force of the guide protrusion 943, the abutting roller 941 cannot continue moving along its original trajectory and is forced to deviate from its track. The direction of the deviated movement of the abutting roller 941 is related to the shape and rotation direction of the guide protrusion 943. The shape and position of the guide protrusion 943 allow for precise control of the deviated direction and magnitude of the abutting roller 941. During the track deviation, the abutting roller 941 transmits the pushing force it receives to the humanoid movable block 92. Under the action of the pushing force transmitted by the abutting roller 941, the humanoid movable block 92 rotates around its axis, making a bending motion.

[0058] During the bending motion of the humanoid movable block 92, the elastic reset component 93 is stretched, storing elastic potential energy. Simultaneously, due to the movement of the bulletproof vest 1, the fixing clip 95 moves accordingly, pulling the elastic cord 96, which also undergoes elastic deformation, storing elastic potential energy. When the bending guide component 94 stops pushing the humanoid movable block 92, the elastic potential energy stored in the elastic reset component 93 is released, and its telescopic end drives the humanoid movable block 92 to reset, returning it to a vertical state. At the same time, the elastic potential energy stored in the elastic cord 96 is also released, pulling the fixing clip 95 to reset, ensuring the bulletproof vest 1 remains in a close and synchronized position under the action of the fixing clip 95. During this process, wrinkles may appear on the surface of the bulletproof vest 1. These wrinkles simulate the actual state of the bulletproof vest 1 after human activity, further enhancing the realism and accuracy of the test. Through the synergistic action of the elastic reset component 93 and the elastic cord 96, the humanoid wearer 9 can completely simulate the process of the human body from activity to rest, comprehensively examining the performance of the bulletproof vest 1 under different conditions.

[0059] As shown in Figures 7 to 10, the humanoid wearable frame 9 also includes multiple pressure airbags 921, which are distributed on the fixed mounting block 91 and the humanoid movable block 92.

[0060] The pressure bladder 921 is gradually inflated by inflation. As the pressure bladder 921 inflates, the contact area between its surface and the bulletproof vest 1 gradually increases, and the pressure applied to the bulletproof vest 1 also gradually increases. This pressure allows the bulletproof vest 1 to fit more tightly against the fixed mounting block 91 and the humanoid movable block 92, simulating the realistic fit between the human body and the bulletproof vest 1. Different models of bulletproof vest 1 have different thicknesses, shapes, and elasticities. By flexibly adjusting the pressure of the pressure bladder 921, these differences can be accommodated, ensuring that various models of bulletproof vest 1 can achieve the ideal fit effect during testing, thereby ensuring that the stress conditions of the bulletproof vest 1 during testing are closer to actual working conditions.

[0061] Referring to Figures 9 and 10, the elastic reset assembly 93 includes a fixed mounting sleeve 931, a telescopic block 932, a connecting pull rope 933, and a second reset spring 934. The fixed mounting sleeve 931 is fixedly installed inside the fixed mounting block 91; the telescopic block 932 is slidably installed on the fixed mounting sleeve 931; one end of the connecting pull rope 933 is fixedly connected to the telescopic block 932, and the end of the connecting pull rope 933 away from the telescopic block 932 is connected to the human-shaped movable block 92; the second reset spring 934 is disposed between the telescopic block 932 and the fixed mounting sleeve 931.

[0062] When the humanoid movable block 92 rotates under the pushing action of the bending guide assembly 94, making a bending motion, the connecting rope 933 is pulled along with the movement of the humanoid movable block 92, causing the telescopic block 932 to slide on the fixed mounting sleeve 931. The sliding of the telescopic block 932 causes the second return spring 934 to elastically deform, storing elastic potential energy during the deformation process. When the bending guide assembly 94 stops pushing the humanoid movable block 92, the elastic potential energy stored in the second return spring 934 begins to be released. The released elastic potential energy is converted into the kinetic energy of the telescopic block 932, pushing the telescopic block 932 to slide back to its initial position on the fixed mounting sleeve 931. The sliding of the telescopic block 932 is transmitted to the humanoid movable block 92 through the connecting rope 933, causing the humanoid movable block 92 to rotate in the opposite direction around the axis of rotation, gradually returning to an upright state, simulating the process of a human body returning from a bending motion to a normal standing position.

[0063] The specific working principle of this invention:

[0064] The multi-segment installation device 4 is in the initial position. The movable end of the multi-segment installation device 4 drives the docking cover plate 5 away from the double-layer tilting barrel 3, so that the internal space of the double-layer tilting barrel 3 is opened. At this time, a certain amount of sand is pre-stored inside the double-layer tilting barrel 3 to prepare for the subsequent simulation of harsh environment.

[0065] The staff correctly put on the bulletproof vest 1 to be tested and fixed it on the human-shaped wearing frame 9. The human-shaped wearing frame 9 is fixedly installed on the movable end of the multi-segment installation device 4 to ensure that the bulletproof vest 1 fits tightly with the human-shaped wearing frame 9, simulating the real wearing state and ensuring that the stress of the bulletproof vest 1 during the test is closer to the actual working conditions.

[0066] The multi-section installation device 4 is activated, and its movable end drives the docking cover plate 5 and the human-shaped wearable frame 9 to move synchronously into the double-layer flipping barrel 3 until the human-shaped wearable frame 9 and the bulletproof vest 1 are completely inside the double-layer flipping barrel 3, and the docking cover plate 5 and the double-layer flipping barrel 3 are well docked to form a relatively closed test space, preventing the sand from leaking out during the test, and providing a stable environment for subsequent tests.

[0067] The rotary drive device 6 is activated, causing the double-layered tilting barrel 3 to rotate around its axis. During the rotation of the double-layered tilting barrel 3, the docking cover plate 5 and the two friction mechanisms 8 rotate synchronously. Since the humanoid wearing frame 9 simulates the human body shape, the two friction mechanisms 8 rub against the bulletproof vest 1. During the rotation, it can simulate the force conditions when a combatant performs tactical actions such as lying down, rolling, and crawling, including complex mechanical loads such as compression and torsion, effectively assessing the structural stability of the bulletproof vest 1 in the wearing state, as well as the durability of the shoulder straps and fixing devices.

[0068] The temperature control device 7 can adjust the temperature and humidity inside the double-layer flipping barrel 3 according to preset parameters to simulate the harsh battlefield environment of high temperature and high humidity, examine the changes in the material properties of the bulletproof vest 1 under such hot and humid conditions, such as whether the material experiences performance degradation or deformation due to the hot and humid environment, and comprehensively evaluate the environmental adaptability of the bulletproof vest 1.

[0069] When the double-layered tilting drum 3 rotates, the sand stored inside moves synchronously with the tilting motion and continuously comes into contact with the surface of the bulletproof vest 1. The contact of the sand further simulates the impact of factors such as surface mud and sand on the bulletproof vest 1 in actual combat, enhances the similarity between the test environment and the real complex battlefield environment, and makes the test results more reflective of the performance of the bulletproof vest 1 in actual use.

[0070] The control section of this invention employs existing technology.

[0071] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A test device for testing the force of bulletproof vests in a damp and hot environment, comprising a mounting bracket (2) and an environmental simulation roller disposed on the mounting bracket (2), characterized in that: The environmental simulation roller includes a multi-segment mounting device (4), a double-layer flipping drum (3), a docking cover plate (5), a rotation drive device (6), a temperature control device (7), a friction mechanism (8), and a human-shaped wearable frame (9) for wearing and fixing the bulletproof vest (1). The double-layer flipping drum (3) is rotatably mounted on the mounting bracket (2). The multi-segment mounting device (4) is mounted on the mounting bracket (2), and the movable end of the multi-segment mounting device (4) is coaxially arranged with the double-layer flipping drum (3) and slidably connected to the double-layer flipping drum (3). The human-shaped wearable frame (9) is fixedly connected to the movable end of the multi-segment mounting device (4). The docking cover plate (5) is rotatably set on the movable end of the multi-segment mounting device (4) corresponding to the open end of the double-layer flipping drum (3). It can be connected to the open end of the double-layer tilting bucket (3); the rotary drive device (6) is fixedly installed on the mounting bracket (2), and the drive end of the rotary drive device (6) is connected to the double-layer tilting bucket (3) for transmission; the temperature control device (7) is set inside the double-layer tilting bucket (3); there are two friction mechanisms (8), which are respectively installed inside the docking cover plate (5) and the double-layer tilting bucket (3), and the friction end of the friction mechanism (8) is in contact with the bulletproof vest (1) worn on the human-shaped wearable frame (9); the double-layer tilting bucket (3) has a storage chamber for storing sand inside the bucket wall, and multiple scraper strips (32) are provided inside the storage chamber. The inner wall of the double-layer tilting bucket (3) has several dropping holes (31), and the dropping holes (31) are connected to the storage chamber. The friction mechanism (8) includes an arrangement mounting seat (81) and a limiting mounting strip (82); the arrangement mounting seat (81) is fixedly connected to the inner wall / connecting cover of the double-layer flipping barrel (3), and the arrangement mounting seat (81) is provided with multiple limiting insert rails (811); multiple limiting mounting strips (82) are provided and distributed in the limiting insert rails (811), the limiting mounting strips (82) and the limiting insert rails (811) are detachably connected, and each limiting mounting strip (82) is provided with several abutting scraping strips (821); the human-shaped wearable frame (9) includes a fixed mounting block (91), a human-shaped movable block (92), an elastic reset component (93), a fixed clamp (95) and an elastic pull rope (96); the fixed mounting block (91) is fixedly installed on multiple sections The movable end of the mounting device (4) is mounted on the fixed mounting block (91); the human-shaped movable block (92) is rotatably mounted on the fixed mounting block (91); the elastic reset component (93) is mounted on the fixed mounting block (91), and the telescopic end of the elastic reset component (93) is connected to the human-shaped movable block (92); multiple fixed clamps (95) are provided, and the bottom of the fixed clamps (95) is connected to the lower part of the fixed mounting block (91) through the elastic pull rope (96); a bending guide component is also provided, which includes a contact roller (941) rotatably mounted on the human-shaped movable block (92) and a movable guide ring (942) fixedly mounted inside the double-layer flipping barrel (3), and the movable guide ring (942) is provided with a guide protrusion (943) that can contact the contact roller (941).

2. The bulletproof vest damp-heat environment force testing device according to claim 1, characterized in that: The multi-segment mounting device (4) includes a first sliding mounting shaft (41), a second sliding mounting shaft (42), a first return spring (43), and a linear driver (44). The first sliding mounting shaft (41) is slidably mounted on the axis of the double-layer flipping barrel (3). The end of the first sliding mounting shaft (41) is provided with a limiting mounting hole. The first sliding mounting shaft (41) is provided with a mounting platform. The human-shaped wearable frame (9) is fixedly connected to the mounting platform. The second sliding mounting shaft (42) is slidably disposed in the limiting mounting hole at the end of the first sliding mounting shaft (41). The first return spring (43) is disposed between the second sliding mounting shaft (42) and the first sliding mounting shaft (41). The linear driver (44) is fixedly mounted on the mounting bracket (2). The output end of the linear driver (44) is connected to the second sliding mounting shaft (42).

3. The bulletproof vest damp-heat environment force testing device according to claim 1, characterized in that: The temperature control device (7) includes a heating tube (71) and a humidifier (72); the heating tube (71) is fixedly installed inside the double-layer rotating drum (3); the humidifier (72) is installed on the outside of the double-layer rotating drum (3), and the output end of the humidifier (72) is connected to the inside of the double-layer rotating drum (3).

4. The bulletproof vest damp-heat environment force testing device according to claim 3, characterized in that: The temperature control device (7) also includes multiple guide vanes (73) set on the inner wall of the double-layer tilting barrel (3).

5. A test device for testing the force of bulletproof vests in a damp and hot environment according to claim 1, 2, 3, or 4, characterized in that: The humanoid wearable frame (9) also includes multiple pressure airbags (921), which are distributed on the fixed mounting block (91) and the humanoid movable block (92).

6. A test device for detecting the force of bulletproof vests in a damp and hot environment according to claim 1, 2, 3, or 4, characterized in that: The elastic reset assembly (93) includes a fixed mounting sleeve (931), a telescopic block (932), a connecting pull rope (933), and a second reset spring (934); the fixed mounting sleeve (931) is fixedly installed inside the fixed mounting block (91); the telescopic block (932) is slidably installed on the fixed mounting sleeve (931); one end of the connecting pull rope (933) is fixedly connected to the telescopic block (932), and the other end is connected to the human-shaped movable block (92); the second reset spring (934) is disposed between the telescopic block (932) and the fixed mounting sleeve (931).

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