Helmet impact testing machine

Abstract

The utility model relates to the technical field of helmet production, in particular to a helmet impact testing machine. The helmet impact testing machine comprises a lifting frame, and the top of the lifting frame is arranged away from the ground; the two guide columns are located in the lifting frame, one ends of the two guide columns are fixed to the two sides of the bottom of the lifting frame respectively, and the other ends of the two guide columns are fixed to the top of the lifting frame; the moving assembly slides on the two guide columns; the driving part is arranged on the moving assembly; the rotating disc is arranged at the driving end of the driving piece. The helmet impact testing machine has the beneficial effects that the impact testing machine can simulate impact objects with different shapes and sharpness, so that the performance of the helmet under various real impact conditions can be evaluated more accurately, the defects of the existing helmet impact testing machine in the aspect of simulating the impact objects are overcome, and therefore, the impact testing machine can be used for testing the performance of the helmet. According to the device, the helmet safety performance evaluation is more comprehensive and accurate, and more reliable data support is provided for helmet design and improvement.

Description

Technical Field

[0001] The utility model relates to the technical field of helmet production, in particular to a helmet impact testing machine. Background Art

[0002] The traditional helmet safety performance test relies on static tests or simple simulated impact tests, and these methods cannot comprehensively simulate the performance of helmets in real-world impact situations. Since in real impact situations, helmets may encounter impacted objects with different shapes and various sharpness levels,

[0003] and currently available helmet impact testing machines usually cannot simulate multiple impacted objects with different shapes and sharpness levels, resulting in incomplete test results and loopholes in impact tests. Summary of the Utility Model

[0004] Aiming at the technical problems existing in the prior art, the utility model provides a helmet impact testing machine to solve the problem that currently available helmet impact testing machines usually cannot simulate multiple impacted objects with different shapes and sharpness levels, resulting in incomplete test results and loopholes in impact tests.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A helmet impact testing machine, comprising:

[0006] A lifting frame, the top of the lifting frame is arranged away from the ground;

[0007] Two guide columns, the two guide columns are located inside the lifting frame. Among them, one end of each of the two guide columns is fixed on both sides of the bottom of the lifting frame, and the other end is fixed on the top of the lifting frame;

[0008] A moving component, the moving component slides on the two guide columns;

[0009] A driving member, the driving member is arranged on the moving component;

[0010] A turntable, the turntable is arranged on the driving end of the driving member;

[0011] Multiple impact bodies with different tapers, the multiple impact bodies are arranged along the circumferential direction of the turntable and surround and are arranged at the bottom of the turntable;

[0012] A fixing structure for placing a helmet, the fixing structure is arranged at the bottom of the lifting frame and corresponds vertically to one of the impact bodies at the bottom of the turntable.

[0013] The beneficial effects of the utility model are:

[0014] 1). By arranging a plurality of impact bodies with different tapers at the bottom of the turntable, the device realizes simulating different-shaped impacted objects that a helmet may encounter under real impacts. During the impact test, a driving member drives an impact body at the bottom of the turntable to correspond to the helmet on the fixed structure, so that while the moving component slides downward along the guide posts, the impact body freely falls and impacts the helmet, enabling the impact testing machine to simulate impact objects with different shapes and sharpness, thereby more accurately evaluating the performance of the helmet under various real impact conditions and making up for the deficiencies of existing helmet impact testing machines in simulating impact objects. Therefore, this device makes the evaluation of the helmet's safety performance more comprehensive and accurate, providing more reliable data support for helmet design and improvement.

[0015] Based on the above technical solution, the present utility model can be further improved as follows.

[0016] Further, the moving component includes a carrier plate and two sliders. The two sliders are respectively embedded in the carrier plate, and the carrier plate can slide outside the two guide posts through the two sliders.

[0017] Further, the driving member is set as a servo motor. The servo motor is fixed on the carrier plate, and the driving end of the servo motor penetrates through the carrier plate and is coaxially fixed with the turntable.

[0018] Further, the impact body is set as a frustum.

[0019] Further, the fixed structure includes a fixing plate and a boss. The fixing plate is fixed at the bottom of the lifting frame, and the boss is fixed on the top of the fixing plate.

[0020] Further, the boss is coaxially arranged with one of the frustums at the bottom of the turntable.

[0021] The beneficial effect of adopting the above further solution is that the boss is coaxially arranged with one of the frustums at the bottom of the turntable, ensuring that after the moving component slides downward along the guide posts through the sliders, the frustum on the carrier plate that is coaxially arranged with the boss can accurately impact the helmet on the boss. At the same time, after driving the turntable to rotate by using the servo motor, each frustum with a different taper at the bottom of the turntable can be coaxially arranged with the boss, thereby simulating the performance of the helmet facing different-shaped impacted objects under real impact conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is a schematic diagram of the overall structure of another perspective of the present utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 10. Lifting frame, 20. Guide post, 30. Moving component, 31. Slide block, 32. Bearing plate, 40. Driving member, 50. Turntable, 60. Impact body, 70. Fixing structure, 71. Fixing plate, 72. Boss. Detailed implementation mode

[0026] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0027] Traditional helmet safety performance tests rely on static tests or simple simulated impact tests, and these methods cannot comprehensively simulate the performance of helmets in impact situations in the real world. Since in real impact situations, helmets may encounter impacted objects with different shapes and various sharpness degrees,

[0028] and current helmet impact testing machines usually cannot simulate multiple impacted objects with different shapes and sharpness degrees, resulting in incomplete test results and there being loopholes in the impact test. In response to this, the inventor has proposed a helmet impact testing machine to solve the above problems.

[0029] The present utility model provides the following preferred embodiments

[0030] As Figure 1 shown in Figure 2 a helmet impact testing machine includes:

[0031] A lifting frame 10, the top of the lifting frame 10 is arranged away from the ground;

[0032] Two guide posts 20, the two guide posts 20 are located inside the lifting frame 10. Among them, one end of each of the two guide posts 20 is respectively fixed on both sides of the bottom of the lifting frame 10, and the other end is fixed on the top of the lifting frame 10;

[0033] A moving component 30, the moving component 30 slides on the two guide posts 20;

[0034] A driving member 40, the driving member 40 is arranged on the moving component 30;

[0035] A turntable 50, the turntable 50 is arranged on the driving end of the driving member 40;

[0036] Multiple impact bodies 60 with different tapers, the multiple impact bodies 60 are arranged along the circumferential direction of the turntable 50 and surround and are arranged at the bottom of the turntable 50;

[0037] A fixing structure 70 for placing a helmet, the fixing structure 70 is arranged at the bottom of the lifting frame 10 and is vertically corresponding to one of the impact bodies 60 at the bottom of the turntable 50;

[0038] By arranging a plurality of impact bodies 60 with different tapers at the bottom of the turntable 50, different shapes of objects to be impacted that the simulated helmet may encounter under real impacts are realized. During the impact test, a driving member 40 drives an impact body 60 at the bottom of the turntable 50 to correspond to the helmet on the fixed structure 70, so that while the moving assembly 30 slides downward along the guide posts 20, the impact body 60 freely falls and impacts the helmet, enabling the impact testing machine to simulate impact objects with different shapes and sharpness, thereby more accurately evaluating the performance of the helmet under various real impact conditions and making up for the deficiencies of existing helmet impact testing machines in simulating impact objects. Therefore, this device makes the evaluation of the helmet safety performance more comprehensive and accurate, providing more reliable data support for helmet design and improvement.

[0039] In this embodiment, as Figure 1 shown in Figure 2 , the moving assembly 30 includes a bearing plate 32 and two sliders 31. The two sliders 31 are respectively embedded in the bearing plate 32. Among them, the bearing plate 32 can slide outside the two guide posts 20 through the two sliders 31, ensuring that the impact body 60 at the bottom of the bearing plate 32 can freely and accurately fall along the path of the guide posts 20 to ensure that it can accurately impact the helmet.

[0040] In this embodiment, as Figure 1 shown in Figure 2 , the driving member 40 is set as a servo motor. The servo motor is fixed on the bearing plate 32, and the driving end of the servo motor penetrates through the bearing plate 32 and is coaxially fixed with the turntable 50. The impact body 60 is set as a frustum (the impact body 60 includes, but is not limited to, frustums with different tapers such as 8°, 10°, 15°, 18°, etc.). The fixed structure 70 includes a fixing plate 71 and a boss 72. The fixing plate 71 is fixed at the bottom of the lifting frame 10, and the boss 72 is fixed at the top of the fixing plate 71. The boss 72 is coaxially arranged with one of the frustums at the bottom of the turntable 50.

[0041] The boss 72 is coaxially arranged with one of the frustums at the bottom of the turntable 50, ensuring that after the moving assembly 30 slides downward along the guide posts 20 through the sliders 31, the frustum on the bearing plate 32 that is coaxially arranged with the boss 72 can accurately impact the helmet on the boss 72. At the same time, after the turntable 50 is driven to rotate by the servo motor, each frustum with a different taper at the bottom of the turntable 50 can be coaxially arranged with the boss 72, thereby simulating the performance of the helmet facing different shapes of objects to be impacted under real impact conditions.

[0042] The specific working process of the present utility model is as follows:

[0043] When conducting the impact test, first put the helmet to be tested on the boss 72. At the same time, drive a frustum impact body 60 at the bottom of the turntable 50 to be coaxial with the boss 72 through the driving member 40. After the bearing plate 32 slides down along the guide post 20 through the slider 31, the frustum coaxial with the boss 72 on the bearing plate 32 can accurately impact the helmet on the boss 72. When it is desired to simulate the situation of a real impact, when the helmet faces impacted objects of different shapes, it is only necessary to drive other frustum impact bodies 60 with different tapers at the bottom of the turntable 50 to be coaxial with the boss 72 through the driving member 40.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Helmet impact test machine, characterized in that, include: A lifting frame, wherein the top of the lifting frame is arranged away from the ground; Two guide posts, the two guide posts are located in the lifting frame, wherein one end of the two guide posts is respectively fixed to two sides of the bottom of the lifting frame, and the other end is fixed to the top of the lifting frame; A moving assembly, the moving assembly slides on the two guide pillars; A driving member, wherein the driving member is arranged on the moving component; A rotating disk, the rotating disk being arranged on a driving end of the driving member; A plurality of impact bodies with different tapers, wherein the plurality of impact bodies are arranged along the circumference of the rotating disk and surround the bottom of the rotating disk; A fixing structure for placing a helmet is arranged at the bottom of the lifting frame and corresponds up and down to one of the impact bodies at the bottom of the turntable.

2. The helmet impact tester according to claim 1, characterized in that: The moving assembly comprises a bearing plate and two sliders, wherein the two sliders are respectively embedded in the bearing plate, wherein the bearing plate can slide outside the two guide pillars through the two sliders.

3. The helmet impact tester according to claim 2, characterized in that: The driving component is configured as a servo motor, which is fixed on a bearing plate, and a driving end of the servo motor penetrates the bearing plate and is coaxially fixed to the turntable.

4. The helmet impact tester according to claim 3, characterized in that: The impact body is configured as a frustum.

5. The helmet impact tester according to claim 4, characterized in that: The fixing structure comprises a fixing plate and a boss, wherein the fixing plate is fixed to the bottom of the lifting frame, and the boss is fixed to the top of the fixing plate.

6. The helmet impact tester according to claim 5, characterized in that: The boss is coaxially arranged with one of the frustums at the bottom of the rotating disk.

Images