The driver was hit by a metal block. The fatal accident was initially identified as a traffic accident.

An open letter from Wu Bin's family:

Thank you, we cannot accept donations

We are grateful for so many people who have never met each other. We have given us a deep love when we face the great grief of our dear ones.

These love will inspire us to face the sadness and bravely move forward. However, we really cannot accept your gifts for no reason. We don’t really accept any form of donation, donation, or donation foundation established under this name.

We will be self-reliant, take good care of our family and ourselves, and live well. Thanks again to the people of the country for their concern for Wu Bin.

At noon on May 29th, at the Yangshan section of Huyi Expressway, “the metal block blew through the front windshield of a long-distance passenger bus and caused severe injury and death to the driver Wu Bin”. Initial investigations by the Wuxi police confirmed that the accident was accidental and the metal block system was used. Dynamic hub debris. After the incident, the Wuxi police formed a special investigation team to fully carry out the work and has now clearly identified the investigation priorities. On the morning of June 4th, the Wuxi Municipal Public Security Bureau and the Wuxi City Yongyi Foundation sent a special trip to Wu Bin, Hangzhou, Zhejiang Province to visit and condolence their families and sent him 50,000 yuan for condolences. (Reporter Ding Po Jin Nana)

"Weapon" weight 3.5 kg is a vehicle brake hub debris

At 11:40 on May 29th, Wu Bin, a driver of the passenger transportation company No.2 of Hangzhou Changyun Transportation Group, drove a large ordinary passenger car. When the Shanghai-Yi Expressway moved from Wuxi to Yixing towards Yangshan, a metal suddenly appeared in the opposite lane. Block, penetrated the front windshield of Wu Bin's passenger bus, and Wu Zhong in the chest and abdomen. In the case of serious injuries, Wu Bin tried hard to stop the car with a strong will, started a double-jump warning light, and reminded the 24 passengers on the car to pay attention to safety and hurry up the alarm. Wu Bin was fully rescued by the hospital and died on June 1.

Yesterday, the police informed that the weight of the metal block hitting Wu Bin was 3.5 kilograms, which was confirmed by the experts of the organization, auto parts stores, and auto repair factories, and confirmed that it was a fragment of the vehicle brake hub.

Determined that 9 suspicious vehicles have been investigated across the country

As of the press release, the police have checked the video surveillance records of nearly 20 toll stations, service areas, highway sections and other places during the relevant period, and screened more than 3,000 relevant vehicles passing through Huyi Expressway during the incident period to determine a batch of key vehicles. And nine key suspect vehicles were screened out, and more people were sent to investigate across the country.

Investigation of the screening work is still under way. The Wuxi police said that they will certainly find out the incident and give an account to the deceased and his family, giving an account of the society.

Police notification

Dive into 1

Yesterday, the police informed that it had been determined that Wu Bin's 3.5 kilograms of heavy metal was the vehicle brake hub debris. So, what's the name of the "brake hub" that sounds strange?

What is a brake hub? How can you fly out?

The brake hub also called the brake drum looks like a basin

Mr. Jia, an auto parts store owner in an auto parts market in Nanjing, told the Yangzi Evening News that the brakes were divided into “drum brakes” and “disc brakes” according to the working principle. The brake drums are the components of the drum brakes. Large vehicles use drum brakes, Wu Binkai. The bus is using a drum brake.

"The 'hub' and 'drum' are all homonyms, and the 'brake hub' is also often called the 'brake drum'". Mr. Jia took a brake drum with a diameter of 60 cm or more like a washbasin to reporters. He introduced that the brake hub is made of metal with good heat dissipation and rotates with the wheel. The reporter saw that the thickness of the brake hub is about 3 centimeters, weighing about 60 pounds, and it is quite thick from the outside.

The braking principle is like a hand reaching in and stopping a rotating bucket

However, the brake light can not brake the hub, but also rely on the brake shoe in the brake hub.

The brake shoe is mounted on a stationary brake shoe. The two curved brake shoes form a circle with a diameter slightly smaller than the brake drum and extend into the brake hub. When the brakes are applied, the drive mechanism will open up the circular brake shoe, and the surface of the brake pad with high friction performance (the main component is asbestos) will be in violent friction with the inner surface of the brake hub, forcing the brake hub to rotate. Slow down until it stops rotating.

Tian Weitong, head of the Nanjing New Focus Automotive Hospital, told reporters, “If you have something to say, you can use a bucket to demonstrate.” Tian said, the brake hub is like a bucket, when the hand reaches into the rotating bucket, Equivalent to the brake shoe, as long as the arm is supported on the inner wall of the bucket, the rotating bucket can be stopped by friction.

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