A bulletproof mask performance testing device

Abstract

The invention relates to the technical field of bulletproof masks, in particular to a performance testing device for bulletproof masks, comprising two brackets, wherein a pendulum impact testing machine body is arranged on the inner sides of the two brackets, a motor is fixedly passed through the side of one bracket away from the other bracket, a conduction rod is passed through and rotatably connected between the two brackets, a transmission member is arranged on the outer side of the conduction rod, a rotating shaft is arranged on the inner side of the other end of the transmission member, a clamp is fixedly disposed on the outer side of the top end of the rotating shaft, a sample is clamped on the inner side of the clamp, three vertical bands are fixedly disposed on the bottom of the clamp, a reflective rod is fixedly disposed on the side of the three vertical bands away from the sample, and an infrared ranging sensor is arranged on the bottom of the clamp. The invention adopts the clamp, the vertical bands, the reflective rod and the infrared ranging sensor, and cooperates with the pendulum impact testing machine body to impact the sample, so as to intuitively reflect the overall displacement of the mask during the impact and recovery process, thereby judging the degree of deformation and the degree of deformation recovery, and then performing a rapid evaluation.

Description

Technical Field

[0001] The invention relates to the technical field of bulletproof masks, in particular to a performance testing device for bulletproof masks. Background Art

[0002] The performance test device for bulletproof masks uses a pendulum impact tester, which plays an important role in the research and development, production and quality inspection of bulletproof masks. The pendulum impact tester can simulate the impact of bullets, shrapnel and other objects on the mask by controlling parameters such as the mass and impact speed of the pendulum, so as to intuitively detect whether the bulletproof mask can effectively block the penetration of the impact object, which is a key indicator for measuring the performance of the bulletproof mask. Different application scenarios have different protection requirements for bulletproof masks. By adjusting the impact energy of the pendulum impact tester and conducting impact tests of different intensities on the mask, the maximum impact energy it can withstand can be determined, and then its protection level can be clarified, providing accurate product performance information for users with different needs.

[0003] When a bulletproof mask is impacted, the most intuitive manifestation of energy absorption is deformation. The mask will dent or bend around the impact point. The recovery of deformation can also reflect the energy absorption characteristics. When the purpose of the test is to find out the specific weak links of the product for improvement, even if one point fails the impact, continue to test other points. This can fully understand the performance differences of the mask at different positions, provide more data support for product design optimization, and better evaluate the overall potential and improvement direction of the product.

[0004] The testing device in the prior art generally detects whether the bulletproof mask is invalid or qualified, but only detects whether it is invalid or qualified, but does not fully consider the detection of deformation and deformation recovery, which is not conducive to in-depth research on the changes in the mechanical properties of the materials constituting the mask during the impact process. It is impossible to accurately know the specific deformation degree of the bulletproof mask under impact and the deformation differences of various parts, and cannot comprehensively evaluate its impact resistance. It is difficult to evaluate whether the mask will affect the comfort of the wearer due to deformation after being impacted, which is not conducive to the optimization and improvement of product structure and materials. In addition, the infrared ranging sensor and other components of the existing device are generally arranged on the back of the mask sample, which is not easy to locate the deformation position, and after the bulletproof mask fails and is damaged, the impact residue is easy to damage the infrared ranging sensor and other components.

[0005] Therefore, the present invention provides a bulletproof mask performance testing device which can not only detect whether the bulletproof mask is invalid or qualified, but also fully consider the deformation and deformation recovery of the bulletproof mask and can effectively detect the efficiency. Summary of the invention

[0006] A bullet-proof mask performance testing device is designed to solve the problem that traditional bullet-proof mask testing devices in the prior art only detect whether they are failed or qualified, but do not fully consider the deformation and deformation recovery.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a bullet-proof mask performance testing device, comprising two brackets, a pendulum impact testing machine body is arranged on the inner side of the two brackets, a motor is fixed through the side of one bracket away from the other bracket, a conduction rod is rotatably connected through the two brackets, a transmission member is sleeved on the middle part of the conduction rod, a rotating shaft is sleeved on the other end of the transmission member, a clamp is fixed on the outer side of the top end of the rotating shaft, a sample is clamped on the inner side of the clamp, three vertical bands are fixed on the bottom of the clamp, a reflective rod is fixed on the side of the three vertical bands away from the sample, and an infrared ranging sensor is arranged on the bottom of the clamp; the transmission member is equipped to transmit the power of the pendulum of the pendulum impact testing machine body to the rotating shaft; the rotating shaft is equipped to transmit the force transmitted by the transmission member to the clamp; the clamp is equipped to clamp the sample and cooperate with the rotating shaft to drive the test rotation.

[0008] Furthermore, the output end of the motor is fixedly connected to the main body of the pendulum impact testing machine.

[0009] Furthermore, two pulleys are fixed on the outside of the pendulum impact testing machine body, and the outsides of the two pulleys are equipped with transmission belts. Another pulley is installed on the other end of the two transmission belts, and the other two pulleys are fixed on the outside of the conduction rod, which is rotatably connected to the bottom ends of the two brackets.

[0010] Furthermore, the transmission member includes an outer shell, which is fixed to one side of the base, and the base is fixed to one side of the bracket. A bevel gear 2 is rotatably installed on the top of the bottom wall of the outer shell, a small sprocket is fixed to the bottom of the bevel gear 2, a toothed chain is sleeved on the outer side of the small sprocket, a large sprocket is clamped on the inner side of the other end of the toothed chain, the large sprocket is fixed to the outside of the rotating shaft, the rotating shaft is rotatably installed on the inner side of the base, a bevel gear 1 is fixed to the outside of the transmission rod, and the bevel gear 1 is meshed with the bevel gear 2.

[0011] Furthermore, the fixture includes a support plate, which is fixedly connected to the outer side of the top end of the rotating shaft, a base is fixed to the side of the support plate away from the rotating shaft, a rubber pad is fixed to the side of the base away from the rotating shaft, three hydraulic cylinders are fixed through the side of the base away from the rotating shaft, a pressure plate is fixed to the outer side of the output ends of the three hydraulic cylinders, and the inner sides of the pressure plate and the base are detachably clamped to hold the sample.

[0012] Furthermore, two link plates are fixed to the outside of the rotating shaft, a side shell is fixed to one side of the two link plates, a back shell is fixed to the inner side of the two link plates, a limiting plate is fixed to the side of the side shell close to the back shell, three infrared ranging sensors are fixed to the inner side of the limiting plate, three protective strips are fixed to the inner side of the limiting plate, and the three protective strips are all connected to the side of the three infrared ranging sensors close to the side shell, and three vertical grooves are opened through the side of the side shell close to the limiting plate.

[0013] Furthermore, three vertical strips are fixed to the bottom of the two bases, reflective rods are fixed to the bottom of the three vertical strips, and the three reflective rods are located below the three infrared ranging sensors.

[0014] Furthermore, a controller is fixed on the top of the base, and the pendulum impact tester body, the motor, the three hydraulic cylinders, and the three infrared ranging sensors are all electrically connected to the controller.

[0015] The beneficial effects of the present invention are as follows:

[0016] (1) The performance test device for a bulletproof mask described in the present invention uses a fixture, a vertical strap, a reflective rod and an infrared ranging sensor, and cooperates with a pendulum impact tester body to impact a sample. Compared with the prior art, when the bulletproof mask sample is deformed by impact, the vertical strap fitted therewith will produce a corresponding displacement as the mask is deformed. During the process from the beginning to the end of the impact and the mask begins to recover its deformation, the position of the vertical strap and the length between the reflective rod and the infrared ranging sensor will also change accordingly. Therefore, the change in the length between the reflective rod and the infrared ranging sensor can intuitively reflect the overall displacement of the mask during the impact and recovery process, thereby determining the degree of deformation and the degree of deformation recovery, thereby achieving a more effective and comprehensive evaluation.

[0017] (2) The performance testing device for a bulletproof mask described in the present invention adopts a vertical belt to convert the deformation of the mask sample into the distance moved by the reflective rod, and uses an infrared ranging sensor to measure the distance moved by the reflective rod for testing. This not only helps to analyze the performance of the mask under impact in a more in-depth manner, but also, compared with the prior art, the infrared ranging sensor of the device is arranged at the bottom of the bulletproof mask sample and is isolated by a link plate, thereby avoiding the problem of damage to components such as the infrared ranging sensor after the bulletproof mask fails.

[0018] (3) The bulletproof mask performance testing device described in the present invention comprises a motor, a transmission part, a rotating shaft and a clamp. The motor can quickly and accurately adjust the pendulum to a specified impact angle and change the angle of the sample by simply controlling the motor through a controller, thereby greatly reducing the test preparation time and labor costs and improving the overall efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the housing of the present invention;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the transmission member of the present invention;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the clamp of the present invention;

[0024] Figure 5 is a schematic cross-sectional view of the clamp of the present invention;

[0025] Figure 6 is a schematic cross-sectional view of a vertical band of the present invention;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the link plate of the present invention;

[0027] Figure 8 is a schematic cross-sectional view of a side shell of the present invention;

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the vertical slot of the present invention;

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the main body of the pendulum impact testing machine of the present invention.

[0030] In the figure: 1. bracket; 2. pendulum impact tester body; 3. motor; 4. conduction rod; 41. pulley; 42. transmission belt; 5. transmission member; 51. housing; 52. bevel gear 2; 53. small sprocket; 54. large sprocket; 55. tooth chain; 56. bevel gear 1; 6. base; 7. controller; 8. specimen; 9. side shell; 10. rotating shaft; 11. fixture; 111. support plate; 112. base; 113. rubber pad; 114. hydraulic cylinder; 115. pressure plate; 12. back shell; 13. vertical belt; 14. reflective rod; 15. infrared ranging sensor; 16. limiting plate; 161. protective strip; 17. link plate; 18. vertical groove. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] Embodiment 1: Figures 1 to 9As shown, a bulletproof mask performance testing device described in the present invention comprises two brackets 1, a pendulum impact test machine body 2 is arranged on the inner side of the two brackets 1, a motor 3 is fixed through one side of one bracket 1 away from the other bracket 1, a conduction rod 4 is rotatably connected through the two brackets 1, a transmission member 5 is sleeved on the middle part of the conduction rod 4, a rotating shaft 10 is sleeved on the other end of the transmission member 5, a clamp 11 is fixed on the outer side of the top end of the rotating shaft 10, a sample 8 is clamped on the inner side of the clamp 11, three vertical bands 13 are fixed on the bottom of the clamp 11, a reflective rod 14 is fixed on the side of the three vertical bands 13 away from the sample 8, and an infrared ranging sensor 15 is arranged on the bottom of the clamp 11; the transmission member 5 is equipped to transmit the power of the pendulum of the pendulum impact test machine body 2 to the rotating shaft 10; the rotating shaft 10 is equipped to transmit the force transmitted by the transmission member 5 to the clamp 11; the clamp 11 is equipped to clamp the sample 8 and cooperate with the rotating shaft 10 to drive the test rotation.

[0033] In this embodiment, the vertical strips 13 are difficult to be stretched and deformed.

[0034] Furthermore, the output end of the motor 3 is fixedly connected to the pendulum impact tester body. In the present embodiment, the motor 3 used in the pendulum impact tester body 2 is usually unidirectionally rotating, and the pendulum impact tester body 2 makes a heavy hammer of a certain mass fall freely from different heights to hit the bulletproof mask sample placed below, thereby generating impact forces of different magnitudes. This method can simulate the impact of blunt objects such as stones and sticks on the mask, and is mainly used to test the energy absorption and deformation resistance of the mask under non-penetrating impact. By changing the mass and falling height of the heavy hammer, the magnitude of the impact force can be easily adjusted to meet different test standards and requirements.

[0035] Furthermore, two pulleys 41 are fixed to the outside of the pendulum impact testing machine body 2, and the outsides of the two pulleys 41 are each equipped with a transmission belt 42. Another pulley 41 is installed at the other end of the two transmission belts 42, and the other two pulleys 41 are fixed to the outside of the conduction rod 4, and the conduction rod 4 is rotatably connected to the bottom ends of the two brackets 1.

[0036] Furthermore, the transmission member 5 includes a shell 51, which is fixed to one side of the base 6, and the base 6 is fixed to one side of the bracket 1. A bevel gear 2 52 is rotatably mounted on the top of the bottom wall of the shell 51, and a small sprocket 53 is fixed to the bottom of the bevel gear 2 52. A toothed chain 55 is sleeved on the outer side of the small sprocket 53, and a large sprocket 54 is clamped on the inner side of the other end of the toothed chain 55. The large sprocket 54 is fixed to the outside of the rotating shaft 10, and the rotating shaft 10 is rotatably mounted on the inner side of the base 6. A bevel gear 1 56 is fixed to the outside of the conduction rod 4, and the bevel gear 1 56 is meshed with the bevel gear 2 52.

[0037] In this embodiment, the staff controls the motor 3 to rotate, and the output end of the motor 3 drives the pendulum inside the pendulum impact testing machine body 2 to rotate ninety degrees with the motor 3 as the center to the side away from the base 6. In this process, the pendulum impact testing machine body 2 drives the transmission rod 4 to rotate through the pulley 41 and the transmission belt 42, the transmission rod 4 drives the bevel gear 2 52 to drive the bevel gear 1 56 to rotate, the bevel gear 1 56 drives the small sprocket 53 to rotate, the small sprocket 53 drives the large sprocket 54 to rotate through the tooth chain 55, the large sprocket 54 drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the two link plates 17 and the clamp 11 to rotate with the rotating shaft 10 as the center to the side close to the bracket 1, the clamp 11 drives the sample 8 to rotate to the side close to the bracket 1, when the pendulum is lifted to ninety degrees for the first time, the middle part of the part where the sample 8 is in contact with the vertical belt 13 close to the bracket 1 is aligned with the original position of the pendulum, and then the pendulum impact testing machine body 2 controls the pendulum to fall and impact the sample 8 to perform the first point test.

[0038] Furthermore, two link plates 17 are fixed to the outside of the rotating shaft 10, a side shell 9 is fixed to one side of the two link plates 17, a back shell 12 is fixed to the inner side of the two link plates 17, a limiting plate 16 is fixed to the side of the side shell 9 close to the back shell 12, three infrared ranging sensors 15 are fixed to the inner side of the limiting plate 16, three protective strips 161 are fixed to the inner side of the limiting plate 16, and the three protective strips 161 are all connected to the side of the three infrared ranging sensors 15 close to the side shell 9, and three vertical grooves 18 are opened through the side of the side shell 9 close to the limiting plate 16.

[0039] Furthermore, three vertical strips 13 are fixed to the bottom of the two bases 112 , and reflective rods 14 are fixed to the bottom of the three vertical strips 13 . The three reflective rods 14 are located below the three infrared ranging sensors 15 .

[0040] In this embodiment, when the pendulum strikes the sample 8, the sample 8 is deformed by the impact, and the sample 8 drives the vertical band 13 on the back of the sample 8 to bulge, and the vertical band 13 drives the reflective rod 14 to move toward the side close to the infrared ranging sensor 15. The data detected by the infrared ranging sensor 15 is transmitted to the processor. When the impact is over, the processor controls the motor 3 again to drive the pendulum inside the pendulum impact test machine body 2 to rotate ninety degrees toward the side away from the base 6 with the motor 3 as the center, so that when the pendulum is lifted to ninety degrees for the second time, the middle part of the sample 8 that is in contact with the vertical band 13 located between the three vertical bands 13 is aligned with the original position of the pendulum. In this process, the deformation and recovery of the first impact are basically completed, and the data detected by the infrared ranging sensor 15 is transmitted to the processor.

[0041] In summary, when the bulletproof mask sample is deformed by impact, the vertical band 13 fitted therewith will produce corresponding displacement as the mask is deformed. In the process from the beginning to the end of the impact when the mask begins to recover its deformation, the position of the vertical band 13 and the length between the reflective rod 14 and the infrared ranging sensor 15 will also change accordingly. Therefore, the change in the length between the reflective rod 14 and the infrared ranging sensor 15 can intuitively reflect the overall displacement of the mask during the impact and recovery process, thereby judging the degree of deformation recovery and conducting a rapid evaluation.

[0042] Furthermore, a controller 7 is fixed on the top of the base 6 , and the pendulum impact tester body 2 , the motor 3 , the three hydraulic cylinders 114 , and the three infrared ranging sensors 15 are all electrically connected to the controller 7 .

[0043] In this embodiment, except for one side of the base 6 close to the two brackets 1, the other three sides of the base 6 can be protected and isolated by installing tempered glass or metal plates.

[0044] Embodiment 2: Furthermore, the fixture 11 includes a support plate 111, which is fixedly connected to the outer side of the top end of the rotating shaft 10, a base 112 is fixed to the side of the support plate 111 away from the rotating shaft 10, a rubber pad 113 is fixed to the side of the base 112 away from the rotating shaft 10, three hydraulic cylinders 114 are fixed through the side of the base 112 away from the rotating shaft 10, a pressure plate 115 is fixed to the outer side of the output end of the three hydraulic cylinders 114, and the pressure plate 115 and the inner side of the base 112 are detachably clamped to hold the sample 8.

[0045] In this embodiment, the staff controls the hydraulic cylinder 114 to extend through the controller 7, and the output end of the hydraulic cylinder 114 drives the pressing plate 115 to move to the side away from the rubber pad 113. When the output end of the hydraulic cylinder 114 is extended to the limit, the staff manually fits the top of the sample 8 with the bottom of the rubber pad 113, and fits the inner side of the sample 8 with the base 112. Then, the controller 7 controls the output end of the hydraulic cylinder 114 to contract, and the output end of the hydraulic cylinder 114 drives the pressing plate 115 to move to the side close to the base 112, and then the test is clamped and fixed. At this time, the inner side of the sample 8 fits with the vertical belt 13, as shown in FIG. Figure 1-Figure 9 shown.

[0046] Working principle: The staff controls the fixture 11 through the controller 7 to fix the test clamp. Figure 1-Figure 9As shown; then the staff controls the motor 3 to rotate ninety degrees. During this process, the pendulum impact test machine body 2 drives the transmission rod 4 to rotate through the pulley 41 and the belt transmission. The transmission rod 4 drives the fixture 11 and the sample 8 to rotate toward the side close to the bracket 1 through the transmission member 5. When the pendulum is lifted to ninety degrees for the first time, the middle part of the part where the sample 8 and the vertical belt 13 close to the bracket 1 are in contact with the original position of the pendulum. Then the pendulum impact test machine body 2 controls the pendulum to fall and impact the sample 8 to perform the first point test.

[0047] When the pendulum hits the sample 8, the sample 8 is deformed by the impact, and the sample 8 drives the vertical band 13 on the back of the sample 8 to bulge, and the vertical band 13 drives the reflective rod 14 to move. The data detected by the infrared ranging sensor 15 is transmitted to the processor. When the impact is over, the pendulum is lifted to ninety degrees for the second time, and the middle part of the sample 8 that is in contact with the vertical band 13 located between the three vertical bands 13 is aligned with the original position of the pendulum. In this process, the deformation and recovery of the first impact are basically completed, and the data detected by the infrared ranging sensor 15 is transmitted to the processor, and then the pendulum impact tester body 2 controls the pendulum to fall and hit the sample 8, and performs the second point test and the third point test, and transmits the data to the processor for processing.

[0048] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bulletproof mask performance testing device, comprising two brackets (1), characterized in that: A pendulum impact tester body (2) is arranged inside the two brackets (1), a motor (3) is fixedly passed through the side of one of the brackets (1) away from the other bracket (1), a conduction rod (4) is passed through and rotatably connected between the two brackets (1), a transmission member (5) is sleeved on the middle of the conduction rod (4), a rotating shaft (10) is sleeved on the other end of the transmission member (5), a clamp (11) is fixedly arranged on the outside of the top end of the rotating shaft (10), a sample (8) is clamped on the inside of the clamp (11), three vertical strips (13) are fixedly arranged on the bottom of the clamp (11), a reflective rod (14) is fixedly arranged on the side of the three vertical strips (13) away from the sample (8), and an infrared distance sensor (15) is arranged on the bottom of the clamp (11); A transmission member (5) is configured to transmit the power of the pendulum impact testing machine body (2) to lift the falling hammer to the rotating shaft (10); A rotating shaft (10) configured to transmit the force transmitted by the transmission member (5) to the clamp (11); Two link plates (17) are fixed to the outside of the rotating shaft (10), a side shell (9) is fixed to one side of the two link plates (17), a back shell (12) is fixed to the inner side of the two link plates (17), a limiting plate (16) is fixed to the side of the side shell (9) close to the back shell (12), three infrared distance measuring sensors (15) are fixed to the inner side of the limiting plate (16), three protective strips (161) are fixed to the inner side of the limiting plate (16), and the three protective strips (161) are all connected to the side of the three infrared distance measuring sensors (15) close to the side shell (9), and three vertical grooves (18) are formed through the side of the side shell (9) close to the limiting plate (16); three vertical strips (13) are fixed to the bottom of the two bases (112), and reflective rods (14) are fixed to the bottom of the three vertical strips (13), and the three reflective rods (14) are located below the three infrared distance measuring sensors (15); The fixture (11) is configured to clamp the test specimen (8) and cooperate with the rotating shaft (10) to drive the test specimen to rotate.

2. The bulletproof mask performance testing device according to claim 1, characterized in that: The output end of the motor (3) is fixedly connected to the pendulum impact testing machine body (2).

3. The bulletproof mask performance testing device according to claim 1, characterized in that: Two pulleys (41) are fixed on the outside of the pendulum impact testing machine body (2), and transmission belts (42) are mounted on the outside of the two pulleys (41). Another pulley (41) is mounted on the other end of the two transmission belts (42), and the other two pulleys (41) are fixed on the outside of a transmission rod (4), and the transmission rod (4) is rotatably connected to the bottom ends of the two brackets (1).

4. The bulletproof mask performance testing device according to claim 3, characterized in that: The transmission member (5) comprises a housing (51), the housing (51) being fixed to one side of a base (6), the base (6) being fixed to one side of a bracket (1), a bevel gear 2 (52) being rotatably mounted on the top of the bottom wall of the housing (51), a small sprocket (53) being fixed to the bottom of the bevel gear 2 (52), a toothed chain (55) being sleeved on the outer side of the small sprocket (53), a large sprocket (54) being clamped on the inner side of the other end of the toothed chain (55), the large sprocket (54) being fixed to the outside of a rotating shaft (10), the rotating shaft (10) being rotatably mounted on the inner side of the base (6), a bevel gear 1 (56) being fixed to the outside of the transmission rod (4), and the bevel gear 1 (56) being meshed with the bevel gear 2 (52).

5. The bulletproof mask performance testing device according to claim 4, characterized in that: The clamp (11) comprises a support plate (111), the support plate (111) being fixedly connected to the outer side of the top end of the rotating shaft (10), a base (112) being fixed to the side of the support plate (111) away from the rotating shaft (10), a rubber pad (113) being fixed to the side of the base (112) away from the rotating shaft (10), three hydraulic cylinders (114) being fixed through the side of the base (112) away from the rotating shaft (10), a pressing plate (115) being fixed to the outer side of the output ends of the three hydraulic cylinders (114), and the inner side of the pressing plate (115) and the base (112) being detachably clamped to hold the sample (8).

6. The bulletproof mask performance testing device according to claim 5, characterized in that: A controller (7) is fixed on the top of the base (6); the pendulum impact test machine body (2), the motor (3), the three hydraulic cylinders (114), and the three infrared distance measuring sensors (15) are all electrically connected to the controller (7).

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