Device for testing stab-resistant performance of police stab-resistant clothing

Abstract

The utility model provides a police stab-resistant clothing stab-resistant performance test device, and relates to the police stab-resistant clothing technology field, the police stab-resistant clothing stab-resistant performance test device comprises a first main body frame and an operation device, the upper surface of the first main body frame is fixedly connected with a second main body frame, and the first main body frame is internally provided with a sample clamp assembly; the sample clamp assembly comprises a lifting plate and a fixing seat fixedly connected to the inner bottom wall of the first main body frame, an encoder is installed on the fixing seat, two up-down lifting lead screws are arranged between the fixing seat and the lifting plate, and a left hand-cranking lead screw and a right hand-cranking lead screw are arranged above the lifting plate. According to the device for testing the stab-resistant performance of the police stab-resistant clothing, through the arrangement of the sample clamp assembly, the police stab-resistant clothing can be horizontally fixed or inclined by 45 degrees to be fixed, whether a backing material is placed on the back face of the stab-resistant clothing or not can be selected, compared with the prior art, the device can be used for testing more close to the real use condition, the test result is more comprehensive, and the test efficiency is improved. And the test accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to a stab-resistant performance testing device for police stab-resistant vests, specifically a stab-resistant performance testing device for police stab-resistant vests, belonging to the technical field of police stab-resistant vests. Background Technology

[0002] Police stab-resistant vests are specially designed garments for police use to protect against stabs and knives. Also known as knife-proof vests, blade-proof vests, or blade-proof clothing, they offer protection against cuts, slashes, and stabs, as well as protection against scratches from sharp objects, abrasion resistance, and theft prevention. When wearing a stab-resistant vest, it protects the wearer from cuts, slashes, scrapes, and cuts caused by abrasions or sharp objects (blades, pointed objects, etc.). During the production of police stab-resistant vests, stab-resistant performance tests are conducted to ensure their effectiveness.

[0003] Current stab-resistant performance tests involve securing a police stab-resistant vest, then using a hammer to drop a knife onto the vest and observing the stab-resistant effect. However, existing testing equipment can only lay the vest flat and cannot secure it at a 45-degree angle. In real-world use, the vest may be subjected to stabs at an angle, and a horizontally placed vest cannot accurately determine the stab-resistant effect at an angle. Furthermore, current tests do not consider whether the vest has a backing material, making the stab-resistant test incomplete. Utility Model Content

[0004] The purpose of this invention is to provide a stab-proof performance testing device for police stab-proof vests in order to solve the above-mentioned problems.

[0005] This utility model is achieved through the following technical solution: a stab-resistant performance testing device for police stab-resistant vests, comprising a first main frame and an operating device, wherein a second main frame is fixedly connected to the upper surface of the first main frame, and a sample clamp assembly is provided inside the first main frame, the sample clamp assembly comprising a lifting plate and a fixed seat fixedly connected to the bottom wall of the first main frame, an encoder is installed on the fixed seat, two up-and-down lifting screws are provided between the fixed seat and the lifting plate, left and right hand crank screws are provided above the lifting plate, and an inclined support plate is provided above the left and right hand crank screws.

[0006] Preferably, the second main frame is provided with a hammer lifting assembly inside, and two symmetrical guide rods are fixedly connected to the inner wall of the second main frame. The guide rods can guide the hammer lifting assembly and the hammer body assembly.

[0007] Furthermore, the second main frame is equipped with a gripping hammer assembly, which is adapted to the lifting hammer assembly, and the lifting hammer assembly can lift the gripping hammer assembly.

[0008] Specifically, the grabbing hammer assembly includes a movable beam, and two guide sleeves are fixedly connected to the inner wall of the movable beam. Both guide sleeves are adapted to guide rods. A detection switch is installed on the bottom surface of the movable beam, which can detect whether the main hammer body can be grabbed.

[0009] Preferably, a hammer assembly is provided inside the second main frame. The hammer assembly includes a main hammer body, a force sensor is installed below the main hammer body, a buffer is installed below the force sensor, a clamping assembly is installed below the buffer, and a cutting tool is installed on the inner wall of the clamping assembly. The cutting tool can be replaced through the clamping assembly.

[0010] Furthermore, a speed measuring component is fixedly connected to the upper surface of the first main frame, an anti-double impact component is provided above the first main frame, and an anti-double impact detection component is provided above the first main frame. The speed measuring component can detect the speed of the hammer assembly.

[0011] This utility model provides a stab-resistant performance testing device for police stab-resistant vests, which has the following beneficial effects:

[0012] 1. The police stab-proof vest stab-proof performance testing device, through the setting of the sample clamp assembly, can fix the police stab-proof vest horizontally or at a 45-degree angle, and can choose whether to place backing material on the back of the stab-proof vest. Compared with the existing technology, it can conduct tests that are closer to real use conditions, and the test results are more comprehensive, ensuring the accuracy of the test. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of the first main frame and the second main frame of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the gripping hammer assembly and hammer body assembly of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the fixed base and tiltable support plate of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the movable beam and main hammer body of this utility model;

[0018] Figure 6 This is a three-dimensional structural diagram of the second main frame and the lifting hammer assembly of this utility model;

[0019] Figure 7 This is a three-dimensional structural diagram of the speed measuring component and the anti-double-impact component of this utility model.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. The primary framework;

[0022] 2. Operate the equipment;

[0023] 3. Second main frame; 31. Guide rod;

[0024] 4. Sample clamp assembly; 41. Fixture; 42. Encoder; 43. Up and down lifting screw; 44. Lifting plate; 45. Left and right hand crank screw; 46. Tilting support plate;

[0025] 5. Hammer lifting assembly;

[0026] 6. Grab and release hammer assembly; 61. Moving beam; 62. Guide sleeve; 63. Detection switch;

[0027] 7. Hammer body assembly; 71. Main hammer body; 72. Cutting tool; 73. Force sensor; 74. Buffer component; 75. Clamping assembly;

[0028] 8. Speed ​​measuring component; 9. Anti-double-impact component; 10. Anti-double-impact detection component. Detailed Implementation

[0029] This utility model provides a device for testing the stab resistance performance of police stab-proof vests.

[0030] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a first main frame 1 and an operating device 2. A second main frame 3 is fixedly connected to the upper surface of the first main frame 1. A sample clamp assembly 4 is provided inside the first main frame 1. The sample clamp assembly 4 includes a lifting plate 44 and a fixed seat 41 fixedly connected to the bottom wall of the first main frame 1. An encoder 42 is installed on the fixed seat 41. Two vertical lifting screws 43 are provided between the fixed seat 41 and the lifting plate 44. A left and right hand crank screw 45 is provided above the lifting plate 44. An inclined support plate 46 is provided above the left and right hand crank screw 45.

[0031] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 6 The second main frame 3 is equipped with a lifting hammer assembly 5 inside. The inner wall of the second main frame 3 is fixedly connected with two symmetrical guide rods 31, which can guide the gripping hammer assembly 6 and the hammer body assembly 7.

[0032] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 5 The second main frame 3 is equipped with a gripping hammer assembly 6 inside. The gripping hammer assembly 6 is adapted to the lifting hammer assembly 5, and the lifting hammer assembly 5 can lift the gripping hammer assembly 6.

[0033] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 5 The grabbing hammer assembly 6 includes a movable beam 61, with two guide sleeves 62 fixedly connected to the inner wall of the movable beam 61. Both guide sleeves 62 are adapted to the guide rod 31. A detection switch 63 is installed on the bottom surface of the movable beam 61, which can detect whether it can grab the main hammer body 71.

[0034] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 5 The second main frame 3 has a hammer assembly 7 inside. The hammer assembly 7 includes a main hammer 71. A force sensor 73 is installed below the main hammer 71. A buffer 74 is installed below the force sensor 73. A clamping assembly 75 is installed below the buffer 74. A cutting tool 72 is installed on the inner wall of the clamping assembly 75. The cutting tool 72 can be replaced through the clamping assembly 75.

[0035] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 7 A speed measuring component 8 is fixedly connected to the upper surface of the first main frame 1, an anti-double impact component 9 is provided above the first main frame 1, and an anti-double impact detection component 10 is provided above the first main frame 1. The speed measuring component 8 can detect the speed of the hammer assembly 7.

[0036] Working principle: Select and install the appropriate cutting tool 72 according to the test requirements, input the main hammer body 71, and fix the police protective suit on the tiltable support plate 46 with straps. You can choose whether to put it on the backing material. Adjust the tiltable support plate 46 to a horizontal or 45-degree tilt position according to the test requirements. Finally, adjust the impact position of the protective suit to be directly below the cutting tool 72. After clamping, select the corresponding mode according to the clamping requirements. Since the sample may be padded with backing material, it can also be left unpadded. There are two angles: horizontal and 45-degree tilt. There are a total of 4 modes. The tiltable support plate 46 automatically rises and falls to the corresponding height. The corresponding height has been set according to the 4 modes during the debugging.

[0037] According to the test requirements, a fixed height is selected and entered into the test software. Clicking the "Prepare" button in the software, the equipment automatically lowers the main hammer 71 until the bottom cutter 72 of the main hammer 71 contacts the protective clothing and stops at the zero point. Then, according to the test requirements, it is raised to the set height. Clicking the "Run" button, the main hammer 71 falls freely and impacts the protective clothing. Then clicking the "Grab Hammer" button, the hammer grabbing assembly 6 lowers and grabs the hammer, raising the main hammer 71 to the set waiting position, waiting for the next "Prepare" and "Run". After each impact, the position of the tiltable support plate 46 is moved to change the impact position or change the clamping angle to continue the impact until 5 impacts are completed. Then the sample is replaced and the drop hammer test is repeated. After each impact, the test software interface will display parameters such as force, displacement and velocity during the impact process, realizing instrumented impact.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stab-resistant performance testing device for police stab-resistant vests, comprising a first main frame (1) and operating equipment (2), characterized in that: A second main frame (3) is fixedly connected to the upper surface of the first main frame (1). A sample clamp assembly (4) is provided inside the first main frame (1). The sample clamp assembly (4) includes a lifting plate (44) and a fixed seat (41) fixedly connected to the bottom wall of the first main frame (1). An encoder (42) is installed on the fixed seat (41). Two up-and-down lifting screws (43) are provided between the fixed seat (41) and the lifting plate (44). A left and right hand crank screw (45) is provided above the lifting plate (44). An inclined support plate (46) is provided above the left and right hand crank screws (45).

2. The stab-resistant performance testing device for police stab-resistant vests according to claim 1, characterized in that: The second main frame (3) is equipped with a lifting hammer assembly (5) inside, and two symmetrical guide rods (31) are fixedly connected to the inner wall of the second main frame (3).

3. The stab-resistant performance testing device for police stab-resistant vests according to claim 2, characterized in that: The second main frame (3) is provided with a gripping hammer assembly (6) inside, which is adapted to the lifting hammer assembly (5).

4. The stab-resistant performance testing device for police stab-resistant vests according to claim 3, characterized in that: The grab hammer assembly (6) includes a movable beam (61), and two guide sleeves (62) are fixedly connected to the inner wall of the movable beam (61). Both guide sleeves (62) are adapted to the guide rod (31). A detection switch (63) is installed on the bottom surface of the movable beam (61).

5. The stab-resistant performance testing device for police stab-resistant vests according to claim 1, characterized in that: The second main frame (3) is provided with a hammer assembly (7) inside. The hammer assembly (7) includes a main hammer body (71). A force sensor (73) is installed below the main hammer body (71). A buffer (74) is installed below the force sensor (73). A clamping assembly (75) is installed below the buffer (74). A cutting tool (72) is installed on the inner wall of the clamping assembly (75).

6. The stab-resistant performance testing device for police stab-resistant vests according to claim 1, characterized in that: A speed measuring component (8) is fixedly connected to the upper surface of the first main frame (1), an anti-double impact component (9) is provided above the first main frame (1), and an anti-double impact detection component (10) is provided above the first main frame (1).

Images