For example, a tent pole of two meters by two meters needs at least 12 meters.
Tent, Voice: Zhang Peng is a shed supported on the ground, which is used to shelter from the wind, rain and sunshine and provide temporary shelter. What is made of canvas and supported can be removed and transferred at any time. Tents are transported in the form of parts and assembled only after they arrive at the scene, so various parts and tools are needed. Only by knowing the names and usage of each component and being familiar with the structure of the tent can we build the tent quickly and conveniently.
Fabric: mostly polyester cloth, generally 2 10T polyester cloth and 190T polyester cloth on the market. Quality is based on its thickness and warp and weft density, and the technical index of waterproof fabric is based on waterproof degree. In order to improve the appearance and feel, some manufacturers have painted silica gel on the outer account, which looks translucent, and more importantly, this tent will be lighter.
Waterproof only coated with AC or PU. Generally only used for children or game accounts.
Waterproof 300MM is generally used for dry beach tents/sunshade tents or cotton tents, and waterproof 800MM- 1200MM is used for conventional simple camping tents.
Waterproof 1500MM-2000MM is used for mid-range tents and needs to travel for many days.
Waterproof tents over 3000MM are generally professional tents, which have been treated with high temperature/cold resistance and other technologies.
Bottom material: PE is generally the most common, and the quality mainly depends on its thickness and warp and weft density. Better and more upscale Oxford fabric should be at least waterproof 1500MM.
The inner fabric is generally breathable nylon or breathable cotton cloth. Quality mainly depends on its density.
The rainproof performance of the outer tent cloth is calculated according to how many millimeters of water column it bears per square centimeter.
Generally, tents are above 1500mm water column, which can prevent moderate to heavy rain; Individual reaches 3000-4000mm, which can prevent continuous heavy rain.
High-quality rain-proof tarpaulin not only has high rain-proof index, but also has wide adhesive tape at the joints of the awning wiring to prevent water seepage at the joints.
Although the tent cloth outside has a high rain index, ventilation is a problem. Even on a sunny night without rain, after sleeping, the tent will still be covered with water droplets, especially on the wet ground such as grass. If it accumulates more, it will drip into the internal account. Relatively speaking, the water in the outer tent with low rain index is less than that with high rain index.
These are the water vapor exhaled by the residents in the tent, and the steam on the ground gathers in the water droplets inside the tarpaulin. Because the tent outside is rain-proof, the rain outside can't get in and the steam inside can't get out. So when you get up in the morning, avoid shaking the tent hard and be careful of the light rain.
However, there are several top tents, and the outer tents are made of waterproof and breathable materials such as GORE-TEX and BANTEX, which can solve this problem well, but the price is amazing. Supporting skeleton
There are four common supporting skeletons (commonly known as tent poles):
1, steel pipe: also known as high-frequency welded pipe, it is mainly used in large tents such as military tents and disaster relief tents. The surface is sprayed with plastic or galvanized, and it is divided into round pipes and square pipes. Generally, the pipe diameter is between19 and 50 mm, and the wall thickness is between 0.8 and 3 mm.
2. Flexibility: This is usually a children's account or a beach game account.
3. Glass fiber rod: 6.9/7.9/8.5/9.5/11/2.5 series. The thicker the rigidity, the stronger the flexibility. Therefore, whether the support of fiber pipe is reasonable depends on the ratio of its ground size to height, and it is easy to break if it is too thick or too thin. For example, 210 * 2/kloc-0 *130 is a classic size, and the pipeline is usually 7.9 or 8.5. 4. Aluminum alloy skeleton: it is relatively high-grade and difficult to detect according to the alloy proportion. Generally, the overall radian curve of the original bracket is calculated first, and then hot-pressed and shaped. It is light and easy to carry, not easy to fold, but it is easy to bend and deform due to poor quality.