News Education: Understanding the Basic Knowledge of Hard hats, Don't Let Protective Equipment Become Useless
In numerous work sites such as construction and mining operations, hard hats are the most crucial barrier protecting the head. However, many workers still have a very limited understanding of hard hats, not knowing their protective principles, construction standards, and correct selection requirements. This issue of popular science news, in combination with accident lessons, systematically sorts out the basic knowledge related to hard hats to help everyone scientifically understand and properly use hard hats.
I. The tragic accident serves as a wake-up call, highlighting the necessity of wearing hard hats.
The consequences of head injury accidents are often unimaginable. Previously, at a construction site in Yongjia, Zhejiang Province, a worker was not wearing a hard hats while working. A 3-meter-long, thumb-sized steel bar fell from a height and directly pierced the worker's head. The injured person was unable to move on his own, in great pain, and the on-site workers were unable to deal with the situation urgently. The terrifying scene was heart-wrenching.
In scenarios such as construction, mining, metallurgy, oil exploration, tunnel construction, and forestry logging, there is a widespread risk of materials and tools falling, and the probability of head injuries from impacts and punctures is relatively high. Such accidents are highly likely to cause brain injuries. In mild cases, they can lead to lifelong disabilities; in severe cases, they can directly result in death. A large number of accident cases have confirmed that in related high-risk areas, wearing hard hats in accordance with regulations is an indispensable and mandatory requirement.
II. Comprehensively understand the basic information of hard hats
Basic Structure of Hard Hats
Hard hats are specialized protective gear designed to cushion the impact of falling objects and reduce the harm caused by specific external forces to the human head. They are composed of a helmet shell, a liner, an underjaw strap, and various accessories.
- Cap Shell: Consists of the shell body, brim, brim edge, top reinforcement, etc., which are the external structures;
- Cap Liner: The entire set of protective components inside the cap shell, including the cap strap, sweat-absorbing band, lining, and cushioning device;
- Lower Jaw Strap: Fixed at the lower jaw position during wearing, composed of a tie and a locking buckle, it is a key component for preventing the hard hats from falling off.
(2) Little-known Fact: Civilian Hard hats Originate from Writer Kafka
Many people are unaware that the world's first civilian hard hats was invented by the writer Kafka. At that time, Kafka worked for a work injury insurance agency and frequently came into contact with various work injury cases. He witnessed a large number of workers getting head injuries from falling objects from heights. Inspired by the helmets worn by ancient soldiers, he proposed to apply protective helmets to industrial operations and successfully developed the civilian hard hats. After this protective equipment was put into use, the number of work-related deaths in factories dropped to less than 0.25% for the first time.
(3) How do hard hats achieve their protective effect?
When an object falls and strikes the head, the hard hats uses the helmet shell and liner to immediately distribute the impact force over the entire contact surface of the skull. Subsequently, through the elastic and plastic deformation of the helmet structure and inner lining materials, most of the impact energy is consumed and absorbed, ultimately reducing the impact force transmitted to the human head to within 4900N, minimizing the risk of severe brain injury and reducing the severity of the accident injury.
III.How to Choose a Hard Hats? Remember to Keep in Mind the Standards and Job Requirements
According to the "Labor Protective Equipment Allocation Standard (Trial)", 25 typical job types such as foundry workers, electricians, foremen, road builders, oil drilling workers, and coal miners are required to be equipped with hard hats. Each typical job type also includes multiple similar job types. For example, electricians correspond to 32 similar positions, and the related job types for foremen amount to as many as 145. Enterprises must fully allocate hard hats in accordance with the standards, and employees can also proactively propose their own requirements for protective equipment allocation in accordance with the regulations.
The selection and use of hard hats cannot be generalized. Two major principles need to be followed:
First, prioritize the purchase of products that meet national standards, have complete labels, and have passed inspections. Actively verify the product test reports and refuse products without labels, certificates of conformity, or of poor quality.
Second, select models based on the specific working environment. For live-line operations, insulated hard hats should be chosen; for construction in low-temperature areas, products with low-temperature resistance capabilities should be equipped. If the environmental compatibility is insufficient, safety helmets will be unable to achieve the expected protective effect.
Conclusion
Hard hats are not just items for passing inspections; they are the lifeline that protects us from harm in case of danger. To truly realize the value of hard hats and reduce the probability of head injuries, one must understand their basic structure and protective principles, select the appropriate type based on job requirements, wear them correctly in accordance with regulations, and abandon any fluke mentality psychology.