The most important thing for the elderly when traveling by car is safety, followed by comfort, and thirdly convenience. Here is a comparison between three-wheeled scooters and four-wheeled scooters:
1. Safety:
Many people who want to buy four-wheeled electric scooters think that four-wheeled electric scooters are more stable. , safe, but actually not.
We learned in middle school: two points form a straight line, and three points form a plane. It is difficult to form a plane with four points.
For example: the stool at home has four legs, as shown in the picture:
If the floor at home is uneven, it is often found that the stool will tilt its legs and sit on it. It will sway, so be sure to put something under one foot so that the fulcrums of the four feet are on the same plane, so that the stool is stable.
For the same reason, a four-wheeled scooter, as shown in the picture:
If the ground on which it is driven is not very flat, the same shaking situation as a stool at home will occur. It is constantly shaking, and its stability and safety can be imagined. (As shown in the picture below)
As for the three-wheeled scooter, as shown in the picture:
From a physical point of view, the fulcrum of the three wheels is always on the same plane, even if it makes sense No longer smooth. In terms of stability, it is far superior to four-wheeled electric vehicles. Driving smoothly is the first element of safety.
In addition, from the structure of the car seat: the seats of the four-wheeled scooters are in the form of a support pole and a seat, as shown in the picture above. The old man sits on the seat. The weight was supported by a pole under the seat. The car kept bumping and shaking while driving, and the old man on the seat also swayed. Over time, the pole was easily broken at the connection with the seat due to uneven force. The moment it broke, tragedy happened. The picture shows the tragedy of a broken chair in the office.
The three-wheeled scooter has a seat as shown below. The bottom is a box design. The elderly sit on it. The weight is evenly distributed to the rear wheels of the car through the seat base. It is very stable. There is absolutely no chance of the seat breaking.
The third point: Four-wheeled scooters are small in size, generally with a body width of 60cm and a narrow wheelbase. When the car makes a sharp turn, it is easy to roll over, as shown in the picture:
The general body width of a three-wheeled scooter is 70cm, and the wheelbase width is larger than that of a four-wheeled scooter (Shanghai Siyute's three-wheeled scooter Due to its cantilevered design and the largest wheelbase among similar scooters), the possibility of rollover when turning is extremely small.
2. Comfort:
As mentioned above, four-wheel scooters often bump and shake when driving, and there is no comfort at all. Three-wheeled scooters drive smoothly, have firm seats and are extremely comfortable. At the same time, because the seats of three-wheeled electric vehicles are evenly stressed, the elderly can lean on the backrests without any danger. However, due to the structural design of the seats, the backrests of four-wheeled electric vehicles are basically useless. If the elderly rely on them, they will always be in trouble over time. One day the chair will break and the person will turn over.
3. Convenience:
The wheels of four-wheeled electric vehicles are generally small 6-inch or 9-inch wheels, which are close to the ground and have poor ability to negotiate obstacles. As shown in the picture:
It is difficult for a four-wheeled vehicle to cross potholes, slopes, and obstacles. Many times the elderly must get off the car to push. If they are disabled, they can only The convenience of asking for help from passers-by is out of the question.
Of course, the ability of three-wheeled electric vehicles to climb and overcome obstacles is not necessarily better than that of four-wheeled vehicles. Because many old-age scooters are modified from the original two-wheeled electric scooters, their configurations are the same as those of two-wheeled scooters: high speed (15-35 kilometers per hour), high center of gravity, and poor ability to negotiate obstacles.
The elderly scooter produced by Shanghai Siyute has the strongest ability to overcome obstacles and climb hills among all mobility scooters. Its speed is only 7.5 kilometers per hour, which is very safe for elderly drivers. At the same time, it has super climbing ability. Siyute can easily climb the slope of the underground garage in the community without sprinting at high speed. Even if it is stopped in the middle of the slope, it can easily climb the slope with a cold start. As shown in the picture:
Elderly people, those with inconvenient legs and feet, and disabled people drive Siyute elderly scooters. When encountering obstacles and potholes, they walk on flat ground without asking for help. Siyut's three-wheeled scooter for the elderly is known as the off-road vehicle among scooters, and it lives up to its reputation.
To sum up, when purchasing a scooter for the elderly, three-wheeled ones are safer, more comfortable and more convenient than four-wheeled ones.
Of course, the quality and performance of three-wheeled mobility scooters also have advantages and disadvantages. Therefore, only by identifying the brand of the product, comparing the performance of the product, and understanding the after-sales service of the product can you finally choose a high-quality mobility scooter for the elderly. car!
Siyute wishes all elderly friends a safe driving and a happy life!
How many kilometers can a 4-kilowatt motor of a four-wheel electric vehicle run with a 72-volt 260a lithium battery?
Additional installation is not allowed, and it is illegal to modify the vehicle without permission.
Article 16 of the "Road Traffic Safety Law of the People's Republic of China" stipulates,
No unit or individual shall engage in the following acts:?
(1) Assembling Motor vehicle or unauthorized change of the registered structure, structure or characteristics of the motor vehicle;?
(2) Changing the motor vehicle model, engine number, frame number or vehicle identification number;?
(3) Forging, altering, or using forged or altered motor vehicle registration certificates, license plates, driving licenses, inspection marks, and insurance marks;?
(4) Registration of other motor vehicles Certificate, license plate, driving license, inspection mark, insurance mark.
Extended information
According to the Ministry of Public Security's "Motor Vehicle Registration Regulations"
Article 17 of the following circumstances, in Without affecting safety and identification of number plates, motor vehicle owners can make changes on their own:
(1) Install front and rear anti-collision devices on small and micro passenger vehicles;
( 2) Freight motor vehicles are equipped with wind protectionCovers, water tanks, tool boxes, spare tire racks, etc.;
(3) Adding interior decoration to motor vehicles.
Baidu Encyclopedia - Illegal modified vehicles
Baidu Encyclopedia - Road Traffic Safety Law of the People's Republic of China
120 to 140 kilometers. The four-wheel electric vehicle's 4-kilowatt motor, 72-volt 260a lithium battery, can run 120 to 140 kilometers, depending on the weight of the vehicle and road conditions, which will affect the speed of the vehicle on the road. Four-wheel battery vehicles, also called four-wheel electric vehicles, are special vehicles for regional venues.