Hearing Xu Lin say that he wanted to find the engineering team, President Jiang's expression immediately became surprised.
He heard a hint of excitement from the team leader's tone. Could it be that the case was about to be solved.
If such a case is solved during his tenure, even if the investigators are not him, it would be a glorious political achievement for him to cooperate with them in handling the case.
He said hurriedly: "I'll look for him right away."
Then he was about to leave, but suddenly thought that Xu Lin was still in the elevator shaft, and immediately shouted: "Team Leader Xu, I want to use the elevator first, there is no signal down there."
When Xu Lin heard this, he immediately came out of the elevator shaft.
Everyone entered the elevator again and watched the elevator floor rise. Xu Lin silently counted the seconds in his heart.
The speed of the elevator seems to be faster than ordinary elevators.
When he checked with the repairman before, he took the opportunity to learn about the brand of the elevator and the parameters of the elevator model.
The comprehensive data has long been memorized in my mind.
So after coming up, he decisively discovered the problem.
According to the normal usage parameters of the elevator, it should take about 8 seconds for it to travel 12 meters.
The up and down speeds of this elevator are both 10 seconds.
In just two seconds, even people who take this elevator every day can't notice it.
After all, this time difference is too small. It will pass in just one breath. Who can pay attention?
But Xu Lin noticed it. Not only did he notice it, he also calculated the time difference.
"Two seconds is enough to hide a floor."
Xu Lin secretly thought that he was more confident at this moment.
Soon, an engineering team consisting of five people arrived at the Industrial and Savings Bank.
A leader of the engineering team looked at Xu Lin and the other four policemen in police uniforms with a suspicious look on his face, and then at President Jiang and two bank employees beside him.
He opened his mouth and asked President Jiang: "Comrade, are you going to do some decoration?"
Xu Lin stepped forward directly and said: "Master, do you have electric picks or impact drills or other equipment?"
"Well……"
The people in the engineering team were confused by the question.
Then he shook his head and said: "No, we also said that we would come and have a look on site. We have to make a decision after seeing what we are going to do specifically!"
Xu Lin patted his head and said: "I didn't make it clear. We need to open a cement pouring channel, which may be more than one meter thick, so master, please think of a way."
"What's so difficult about this? Just wait." The engineer said, turning around and saying something to the two people behind him. The two men immediately nodded and went back to get the tools.
Xu Lin took Wu Xiaofeng, Han Xing, and Xiao Xue back to the third underground floor.
All four people climbed to the elevator. Xu Lin pointed to the two elevator door frames and asked, "Did you find anything?"
The three of them were stunned. Aren't these just three elevator door frames?
What did you find?
They had no idea what Xu Lin had discovered?
"Is there any slight wear on the inside of the door frame on the second floor?" Xu Lin asked.
"It seems a little bit." Xiao Xue said.
Xu Lin took a pair of gloves, put them on, grabbed a steel cable, and pulled it downwards. They suddenly discovered that the elevator door frame on the second floor had moved upwards by about two or three centimeters.
"Hiss! What's going on?" Wu Xiaofeng took a breath of cold air.
Everyone was stunned, and Han Xing even exclaimed: "Master, this elevator door frame can move, shouldn't it be fixed?"
Xu Lin: "Who told you that the elevator door frame must be fixed? This thing is determined by the elevator shaft and floor. Elevator door frames on high floors are movable and can be used as emergency brakes to prevent the elevator from breaking down at critical times. come down."
"If my guess is correct, when the elevator starts, the elevator door frame will fall down one meter on its own, and each one will fall one meter. So from the inside of our elevator shaft, the distance between the three elevator doors is exactly Symmetrical."
"If this is the case, why do elevator manufacturers do this?" Han Xing asked.
Xiao Xue: "Idiot, master just said that this is for emergency braking."
"No, you are wrong. Only high-rise elevators are used in this way. Elevators on the ground floor generally do not have this thing. Of course, it is also possible that when the elevator was originally installed, the bank leaders installed it for safety reasons." Xu Lin said.
As soon as these words came out, the three of them looked at him.
Then wouldn't it be in vain if you said this?
Xu Lin looked at the eyes of the three people, smiled and said: "No matter which possibility it is, this can mislead our investigation. The elevator is very simple for professionals, but for unprofessional people, it The process is very complex.”
After all, considering safety, anyone would ignore this situation.
Let alone us, the bank staff will ignore it.
Even the elevator maintenance staff at the back don't care too much.
"Let's go! Let's go up and contact the elevator manufacturer. I have to confirm one thing before I can start to demolish the wall."
Xu Lin said, taking the three of them out of the elevator shaft and taking the elevator back to the ground floor.
Then he checked the elevator manufacturer's phone number. After dialing it, he immediately stated his intention and asked to contact their sales to verify the installation information at that time.
The brand of the elevator was Wogui. Fortunately, the production place was in Daxia, so Xu Lin quickly contacted their sales and found the salesman who originally sold the elevator.
The other party was in Haili City, so it took less than 20 minutes to get there.
Coincidentally, the engineering team's master's equipment also arrived, and they were preparing to carry it into the bank.
Xu Lin glanced at the bank that was still open and asked the masters to wait a moment while he took the salesperson to the elevator shaft.
"Hello, Xiaoyu, right?"
"Yes, police officer, I'm Xiao Yu." Xiao Yu was quite cautious.
There is no way around it. Anyone who is in front of a task force leader will inevitably be a little nervous.
Xu Lin asked: "Xiao Yu, let me ask you, when you were selling this elevator, did you recommend up and down sliding doors for the elevator door frame?"
Xiao Yu shook his head without hesitation: "It's impossible, police officer. We don't recommend sliding doors for users below the 6th floor. It will affect the service life. It's okay if it's not used frequently. If it's used frequently, the failure rate will increase by 40%. %above."
Xu Lin said nothing and pointed to the runners of the three sliding doors above.
Xiao Yu looked stunned when he saw it.
"Officer, I don't know about this. By the way, I brought the purchase order and invoice for the elevator sale. You see, there was no sliding door device installed."
He was a little nervous. After all, anyone in Haili City knew that the vault of the Industrial and Savings Bank of Haili City had been stolen, resulting in a loss of nearly 30 billion.
For such a large amount of money, it is safe to sit in jail, and even be shot directly is not impossible.
The amount is too large. If there is any problem, you will have to be investigated!
Xu Lin: "Don't be nervous, I know it's not you."
"By the way, let me ask you, are you familiar with Feng Kai?"
"We're familiar with him. He used to work with me. I was in the sales department and he was in the maintenance department. I heard that he had an accident after he went out in the field and was hit by a car and died. We all pooled some money to give His parents. He was a good man and it's a shame that he died young."
Xu Lin nodded: "Can I still find the list of field repairs made by Feng Kai before his death?"
"We don't have it here, but the headquarters should have it. But... they may not be able to help. Our headquarters is over there with the Japanese ghosts." Xiao Yu sighed.
Xu Lin: "Have your sliding door operators and related accessories been stolen before?"
"Yes! This one does exist, and there are more than one."
"At that time, our logistics maintenance warehouse manager also said that the missing parts can be used to make two sliding door operators... sliding door operators!" Xiao Yu's eyes widened for a moment, staring at the elevator door frame above.
