Helmet plays a crucial role in ensuring the safety of users, especially in high-risk environments such as construction sites, industrial areas, and emergency response operations. Each component of the helmet is designed with a specific function in mind, and its overall quality is thoroughly tested using specialized helmet detection instruments. Below is a detailed introduction to the key structures and their respective testing procedures:
**Cap:** The cap serves as the primary protective layer, acting as a barrier between the user's head and any falling objects. It absorbs and distributes impact forces to minimize injury risk.
**Hood:** The hood ensures that the helmet remains properly positioned on the head, preventing it from shifting during use, which could compromise protection.
**Top Strap:** This strap helps disperse the force of an impact and keeps the cap shell in a floating position, further enhancing the helmet’s ability to absorb shocks.
**Cushion:** The cushioning material inside the helmet reduces the direct impact on the head, providing additional comfort and protection.
*(All these components are tested for their impact absorption and puncture resistance using the ZM-811 Helmet Impact Puncture Tester, part of our comprehensive helmet detection system.)*
**Rear Hoop:** This structure acts as a locking mechanism, securing the helmet in place and ensuring it stays firmly on the head during movement or impact.
**Lower Chin Strap:** The chin strap helps maintain the helmet’s position, preventing it from slipping off, especially during sudden movements or falls.
*(The strength of the chin straps is evaluated using the ZM-813 Helmet Chin Strap Strength Tester, another essential tool in our testing equipment range.)*
**Sweatband:** Designed to wick away sweat and improve comfort, the sweatband also contributes to the overall fit and wearability of the helmet.
**Wearing Height:** This refers to the vertical distance from the forehead to the top of the head. If this measurement is incorrect, the helmet may not sit properly, affecting both comfort and safety. A proper wearing height ensures that the helmet remains stable and secure.
*(The wearing height is measured using the ZM-816 Helmet-Mounted Height Gauge, a precise instrument used in our testing process.)*
**Vertical Spacing:** This measures the gap between the inner lining of the helmet and the top of the head. Proper vertical spacing is essential for both ventilation and stability—too little can restrict airflow, while too much can make the helmet unstable.
*(This measurement is taken using the ZM-816 Helmet Vertical Distance Gauge, ensuring accurate results.)*
**Horizontal Spacing:** This provides necessary clearance when lateral forces are applied during an impact, offering additional protection and serving as a cooling channel for better breathability.
In addition to structural testing, helmets must also meet special performance requirements, such as flame resistance, anti-static properties, and electrical insulation. These are tested using advanced equipment like the ZM-817 Helmet Fire Resistance Tester, ZM-818 Safety Cap Anti-Static Tester, and ZM-819 Hard Hat Electrical Insulation Tester.
Before conducting impact absorption and puncture tests, helmets undergo pretreatment procedures to simulate real-world conditions. Common pretreatment equipment includes the ZM-820 Helmet UV Irradiating Box, ZM-821 Helmet High Temperature Pretreatment Box, and ZM-822 Helmet Cryogenic Water Immersion Pretreatment Tank.
This content is provided by Qingdao Zhongbang Instrument Co., Ltd. If you wish to reproduce this article, please ensure that the source is clearly cited. Unauthorized reproduction is prohibited.
Garden Light,Outdoor Garden Landscape Lights,Outdoor Led Lighting,Garden Courtyard Light
Changzhou Jingui Lighting Technology Co., Ltd , https://www.czjglighting.com