High temperature resistance test structure of safety helmet

Abstract

The utility model relates to the technical field of safety helmets, in particular to a high-temperature-resistant test structure of a safety helmet. A high temperature resistance test structure of a safety helmet comprises a housing; the roller assembly is arranged in the machine shell, and the roller assembly comprises an inner container; the driving part is arranged on the machine shell and used for driving the inner container to rotate; the collision bodies are different in taper, and the collision bodies are arranged on the inner wall of the inner container in a surrounding mode in the circumferential direction of the inner container; the heating assembly is arranged on the outer side of the machine shell and used for providing heat flow into the inner container. The beneficial effects of the utility model are that the device not only can test the protection performance of the safety helmet under the conventional condition, but also can fully consider the influence of the high temperature environment on the material and structure of the helmet, thereby comprehensively evaluating the anti-collision performance of the safety helmet under the high temperature condition, and enabling the performance detection to be more comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of safety helmets, in particular to a high-temperature resistance test structure for safety helmets. Background Art

[0002] There are certain limitations in the traditional safety performance test methods of safety helmets, mainly manifested in the inability to fully simulate the collision situation of safety helmets in a high-temperature environment in the real world.

[0003] The currently commonly used static tests or simple simulated impact tests cannot comprehensively consider the performance of helmets under high-temperature conditions. Especially in high-temperature environments such as summer, the temperature of the helmet may affect its material properties and structural stability. Summary of the Utility Model

[0004] In view of the technical problems existing in the prior art, the utility model provides a high-temperature resistance test structure for safety helmets to solve the problem that the currently commonly used static tests or simple simulated impact tests cannot comprehensively consider the performance of helmets under high-temperature conditions. Especially in high-temperature environments such as summer, the temperature of the helmet may affect its material properties and structural stability.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: A high-temperature resistance test structure for safety helmets, comprising:

[0006] A housing;

[0007] A roller assembly, the roller assembly is arranged inside the housing, wherein the roller assembly includes an inner liner;

[0008] A driving member, the driving member is arranged on the housing for driving the inner liner to rotate;

[0009] A plurality of collision bodies with different tapers, the plurality of collision bodies are arranged along the circumferential direction of the inner liner and surround the inner wall of the inner liner;

[0010] A heating assembly, the heating assembly is arranged outside the housing for providing heat flow into the inner liner.

[0011] The beneficial effects of the utility model are:

[0012] 1) By providing heat flow into the inner liner through the heating assembly, the safety helmet is heated to a high-temperature state. At the same time, a plurality of collision bodies with different tapers are designed in the inner liner, and the driving member is combined to drive the inner liner to rotate, so that the collision test is closer to the collision situation under high-temperature conditions in the real world, and the authenticity and reliability of the test are improved.

[0013] 2) In summary, this device can not only test the protective performance of safety helmets under normal conditions, but also fully consider the influence of high-temperature environment on the helmet materials and structures, so as to comprehensively evaluate the anti-collision performance of safety helmets under high-temperature conditions, making the performance detection more comprehensive.

[0014] Based on the above technical solutions, the present utility model can be further improved as follows.

[0015] Furthermore, the drum further includes two axles, and the two axles are respectively sleeved on the outer sides of both sides of the inner container.

[0016] Furthermore, the driving member includes a servo motor, two linkage shafts, and four rollers. Among them, the four rollers are arranged in two pairs opposite to each other. The two rows of rollers are respectively arranged at the bottoms of the two axles, and each row of two rollers abuts against both sides of the bottom of one axle. Each roller is rotatably connected to the machine shell through a rotating shaft.

[0017] Furthermore, the two linkage shafts respectively penetrate through the two columns of rollers. The servo motor is arranged on the machine shell, and the driving end of the servo motor is connected to one of the linkage shafts.

[0018] Furthermore, the heating component includes an air supply pipe. One end of the air supply pipe is connected to the output end of an external air heater, and the other end penetrates through the machine shell and extends into the inner container.

[0019] The beneficial effect of adopting the above further scheme is that through the drive of the servo motor, the linkage shaft drives the rollers to rotate, thereby using the friction force between the axle and the rollers to drag the axle to rotate, and then driving the inner container to rotate, so that the inner container can rotate, enabling the collision bodies on the inner wall to contact the safety helmets in the inner container, realizing a real collision simulation. At the same time, by blowing hot air into the inner container through the air supply pipe by an external air heater, the safety helmets in the inner container can be heated, realizing a more realistic simulation of the collision scenario under high-temperature environment, and improving the authenticity and reliability of the test.

[0020] Furthermore, the collision body is set as a frustum of a cone.

[0021] Furthermore, one side of the inner container is provided with a feed inlet, and a feed cover is rotatably connected to the machine shell on one side of the feed inlet. 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 with the machine shell of the present utility model partially exploded;

[0024] Figure 3 is a side cross-sectional view of the present utility model.

[0025] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0026] 100, housing; 200, drum assembly; 201, inner container; 202, axle; 300, driving member; 301, servo motor; 302, linkage shaft; 303, roller; 400, collision body; 500, heating assembly; 501, air supply duct; 600, feed cover. Detailed implementation manners

[0027] The principles and features of the present utility model will be described below with reference to the attached drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0028] There are certain limitations in traditional helmet safety performance testing methods, which are mainly manifested in the inability to fully simulate the collision situation of helmets in a high-temperature environment in the real world.

[0029] Currently, commonly used static tests or simple simulated impact tests cannot comprehensively consider the performance of helmets under high-temperature conditions. Especially in high-temperature environments such as summer, the temperature of the helmet may affect its material properties and structural stability. For this reason, the inventor of the present utility model has proposed a high-temperature resistance test structure for safety helmets to solve the above problems.

[0030] The present utility model provides the following preferred embodiments

[0031] As shown in Figure 1 , Figure 2 and Figure 3 , a high-temperature resistance test structure for a safety helmet includes:

[0032] A housing 100;

[0033] A drum assembly 200, the drum assembly 200 is arranged inside the housing 100, wherein the drum assembly 200 includes an inner container 201;

[0034] A driving member 300, the driving member 300 is arranged on the housing 100 for driving the inner container 201 to rotate;

[0035] A plurality of collision bodies 400 with different tapers, the plurality of collision bodies 400 are arranged along the circumferential direction of the inner container 201 and surround the inner wall of the inner container 201;

[0036] A heating assembly 500, the heating assembly 500 is arranged outside the housing 100 for providing heat flow into the inner container 201;

[0037] A heat flow is provided to the inner container 201 through the heating component 500 to heat the safety helmet to a high temperature state. At the same time, a plurality of collision bodies 400 with different tapers are designed in the inner container 201, and the driving member 300 is combined to drive the inner container 201 to rotate, so that the collision test is closer to the collision situation under high temperature conditions in the real world, improving the authenticity and reliability of the test;

[0038] In summary, this device can not only test the protective performance of the safety helmet under normal conditions, but also fully consider the influence of high temperature environment on the helmet material and structure, so as to comprehensively evaluate the anti-collision performance of the safety helmet under high temperature conditions and make the performance detection more comprehensive.

[0039] In this embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, the drum further includes two wheel axles 202, and the two wheel axles 202 are respectively sleeved on the outer sides of both sides of the inner container 201. The driving member 300 includes a servo motor 301, two linkage shafts 302, and four rollers 303. Among them, the four rollers 303 are arranged in two opposite rows, and the two rows of rollers 303 are respectively arranged at the bottoms of the two wheel axles 202. Moreover, two rollers 303 in each row abut against both sides of the bottom of one wheel axle 202. Each roller 303 is rotatably connected to the machine shell 100 through a rotating shaft. The two linkage shafts 302 respectively penetrate through the two columns of rollers 303. The servo motor 301 is arranged on the machine shell 100, and the driving end of the servo motor 301 is connected to one of the linkage shafts 302. The heating component 500 includes an air supply pipe 501. One end of the air supply pipe 501 is communicated with the output end of an external air heater, and the other end penetrates through the machine shell 100 and extends into the inner container 201;

[0040] Driven by the servo motor 301, the linkage shaft 302 drives the rollers 303 to rotate, so as to utilize the friction force between the wheel axle 202 and the rollers 303 to drag the wheel axle 202 to rotate, and then drive the inner container 201 to rotate, enabling the inner container 201 to rotate and making the collision bodies 400 on the inner wall contact the safety helmet in the inner container 201 to achieve real collision simulation. At the same time, by blowing a heat flow into the inner container 201 through the air supply pipe 501 by an external air heater, the safety helmet in the inner container 201 can be heated to more realistically simulate the collision scenario under high temperature conditions, improving the authenticity and reliability of the test.

[0041] In this embodiment, as Figure 1 、 Figure 2 and Figure 3As shown, the collision body 400 is set as a frustum of a cone. Among them, the taper of the frustum of the cone includes but is not limited to 8°, 10°, 15°, etc. By using the collision bodies 400 with different tapers, it is possible to simulate the collision bodies 400 that a safety helmet may encounter in real situations, so as to more realistically reflect the protective performance of the safety helmet.

[0042] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, one side of the inner liner 201 is provided with a feed inlet, and on one side of the feed inlet and rotatably connected to the machine shell 100 is a feed cover 600. Through the feed inlet, it is convenient to put the safety helmet into the inner liner 201 from the feed inlet, and through the feed cover 600, the heat loss in the inner liner 201 can be prevented.

[0043] The specific working process of the present utility model is as follows:

[0044] Driven by the servo motor 301, the linkage shaft 302 drives the roller 303 to rotate. Thus, by using the frictional force between the wheel shaft 202 and the roller 303, the wheel shaft 202 is dragged to rotate, and then the inner liner 201 is driven to rotate, so that the inner liner 201 can rotate, enabling the collision body 400 on the inner wall to contact the safety helmet in the inner liner 201, realizing a real collision simulation. At the same time, by blowing hot air into the inner liner 201 through the air supply pipe 501 by an external hot air blower, the safety helmet in the inner liner 201 can be heated, realizing a more realistic simulation of the collision scenario under high-temperature environment.

[0045] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high temperature resistance test structure for a safety helmet, characterized in that: include: chassis; A drum assembly, the drum assembly is arranged in the housing, wherein the drum assembly includes an inner container; A driving member, the driving member is arranged on the casing to drive the inner container to rotate; A plurality of collision bodies with different tapers, wherein the plurality of collision bodies are arranged along the circumference of the inner container and surround the inner wall of the inner container; A heating component is arranged outside the casing and is used to provide heat flow to the inner pot.

2. A high temperature resistance test structure for a safety helmet according to claim 1, characterized in that: The drum also includes two axles, and the two axles are respectively sleeved on the outside of two sides of the inner container.

3. A high temperature resistance test structure for a safety helmet according to claim 2, characterized in that: The driving member includes a servo motor, two linkage shafts, and four rollers, wherein the four rollers are arranged opposite to each other in pairs, two rows of rollers are respectively arranged at the bottom of two wheel axles, and two rollers in each row are abutted against two sides of the bottom of one wheel axle, and each roller is rotatably connected to the casing via a rotating shaft.

4. A high temperature resistance test structure for a safety helmet according to claim 3, characterized in that: The two linkage shafts respectively penetrate the two rows of rollers, the servo motor is arranged on the housing, and the driving end of the servo motor is connected to one of the linkage shafts.

5. A high temperature resistance test structure for a safety helmet according to claim 1, characterized in that: The heating component comprises an air supply pipe, one end of which is connected to the output end of the external heater, and the other end of which penetrates the casing and extends into the inner tank.

6. A high temperature resistance test structure for a safety helmet according to claim 1, characterized in that: The collision body is set as a frustum.

7. A high temperature resistance test structure for a safety helmet according to claim 1, characterized in that: A feed inlet is provided on one side of the inner container, and a feed cover is located on one side of the feed inlet and is rotatably connected to the casing.

Images