In recent years, the term "Caravan" appears more and more frequently. What is a caravan? According to gb7258-2017 technical conditions for safe operation of motor vehicles, caravan refers to a trailer equipped with sleeping equipment (which can be converted from tables and chairs) and other necessary living facilities and used for travel and camping. In terms of classification, it mainly includes caravan semi-trailer and center axle caravan.

At present, the vast majority of licensed residential trailers in China belong to middle axle residential trailers. In fact, the difference between the semi-trailer and the center axle trailer is still relatively large.

In terms of definition, the semi-trailer is pulled by the light truck with connecting plate and cannot be pulled by passenger cars. The automobile train composed of the truck with connecting plate and the semi-trailer is a hinged train;

Center axle caravan refers to a trailer whose center of mass of the trailer is close to the axle under uniform load, the traction device cannot move vertically relative to the trailer, and only a small vertical load acts on the tractor when connected with the tractor, which can be towed by a passenger car with traction qualification.

We don't seem to understand the picture directly:

caravan semi trailer

Center axle caravan

It can be seen from the above figure that the model towed by the pickup truck belongs to the caravan semi-trailer with gooseneck, which needs to be towed by the saddle of the pickup truck, which is similar to the principle of transporting the semi-trailer; A passenger car towing a passenger car belongs to a center axle caravan. Car owners can also compare their travel trailer license to see if there is any registration error.

In addition, there are some differences between the caravan and the center axle caravan in actual use. For example, the caravan generally has a stronger bearing capacity, and its downforce can generally exceed 10% of its own weight. Luggage can be placed at will, and the water tank can also be filled up, but the pull-out load of the flange bolt of the anti-collision beam at the tail of the tractor will increase accordingly; As for the center axle caravan, it can stand independently and stably, and the downward pressure on the tractor is small, but the instability on the lateral swing increases, and the general speed limit is within 80.

Then someone may ask: what kind of driver's license is required to drive a caravan?

According to the general understanding, whether it is a semi-trailer or a center axle trailer, as long as it needs other vehicles to tow, it belongs to the category of trailer and needs a driver's license of category A2.

However, a new driver's license code of light towing Trailer: C6 is added, which is applicable to towing trailers with a total mass of less than (excluding or equal to) 4500kg. According to the design and specifications of many light residential trailers in China, it can basically meet this requirement.

In other words, if the total mass of the caravan is less than 4500kg, you can drive it with a C6 driver's license; If it exceeds 4500kg, you can only use A2 driver's license.

It is worth mentioning that at present, only users with A2 driver's license can be directly compatible with C6 without separate application. For other types of driver's license, they need to apply for additional driving to obtain a C6 driver's license special for light towing trailers.

At present, the rise of residential trailers in China is not long. Because they are not very flexible in handling, they may be restricted on some roads. Although the caravan can enter the expressway according to the regulations, it still needs to analyze the specific problems according to the actual situation of each region. For urban areas, urban expressways, elevated roads, tunnels, etc., it also needs to follow the management norms.

With the continuous development of residential trailers, they may play an important role in tourism in the future. Darong heavy industry group is a trailer axle manufacturer that started earlier in China. For more than 20 years, it has always focused on the R & D and production of axles and axles. It has made great achievements in the fields of "one-piece" axle casting, integrated heat treatment, axle head medium frequency strengthening, precision grinding and lightweight design. With reliable quality and stable performance, it has become a fixed cooperative brand of many trailer manufacturers, logistics enterprises and retail investors. With ultra-high cost performance, Help car owners reduce the cost of comprehensive vehicles and achieve energy conservation and emission reduction.