BBQ爐保護套圖片集

防水防曬保護戶外家具

防水防曬保護戶外家具



3米X3米紅色鋁合金帳篷配圓形膠水座亦可配石座



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底面積 2米x2米 3米x3米 4米x4米 及廣告帳篷
A tent is a shelter consisting of sheets of fabric or other material draped over, attached to a frame of pole
s or attached to a supporting rope. While smaller tents may be free-standing or attached to the ground, large tents are usually anchored using guy ropes tied to stakes or tent pegs. First used as portable homes by nomadic peoples, tents are now more often used for recreational camping and temporary shelters.
Tents range in size from “bivouac” structures, just big enough for one person to sleep in, up to huge circus tents capable of seating thousands of people. The bulk of this article is concerned with tents used for recreational camping which have sleeping space for one to ten people. Larger tents are discussed in a separate section below.
Tents for recreational camping fall into two categories. Tents intended to be carried by backpackers are the smallest and lightest type. Small tents may be sufficiently light that they can be carried for long distances on a touring bicycle, a boat, or when backpacking.
The second type are larger, heavier tents which are usually carried in a car or other vehicle. Depending on tent size and the experience of the person or people involved, such tents can usually be assembled (pitched) in between 5 and 25 minutes; disassembly (striking) takes a similar length of time. Some very specialised tents have spring-loaded poles and can be ‘pitched’ in seconds, but take somewhat longer to strike.
帳篷設計要顧及多個因素,其中包括:
帳篷結構
帳篷的牆一般有以下三種類型:
組成部分:
帳篷是一種可移動的建築。骨架由帳杆、營繩來組成並固定,骨架外鋪的是外帳,可以遮擋視線以及風雨。帳篷可以很方便地搭建、拆除和運輸。有些帳篷是不固定的,直接扎在野外,有些則拴在地面的樁子上。最初使用帳篷的是遊牧民族,現在帳篷主要用於露營。現代帳篷要求帳布採用不易燃的材料。
帳篷的大小差別很大,從單人帳篷一直到可以容納上千人的大帳篷(比如馬戲團的帳篷)。
野營用的帳篷一般可以方便地運輸,小型的帳篷甚至可以當作背包、放在自行車上或者放在皮艇里。根據帳篷大小和搭帳篷的熟練程度,一般可在5至25分鐘內搭建完畢,拆帳篷一般也需要相同的時間。
大多數國家的軍隊在戰場上使用帳篷作為軍隊臨時居住和工作的建築。
帳篷面料可採用帆布、尼龍、皮毛、聚脂纖維等。由於布料吸水,在潮濕的情況下會變得非常重。但是濕布膨脹後其小孔被堵住,因此濕布比乾布的防水性更好。尼龍和聚脂纖維比布輕,基本上不吸水,覆蓋一定防水層後它們可以具有非常好的防水性能,但由於紫外線破壞,會逐漸老化。一個帳篷的接縫處更加容易漏水,因此有的將接縫處進行壓膠處理。
防水度參數給出的是在多少毫米處的水壓下依然防水。比如防水度1000毫米的材料可以抵擋陣雨,防水度1500毫米的材料可以在夏季宿營使用,終年在外的帳篷一般需要耐水度2000毫米以上,要抵檔特殊情況的探險帳篷一般需要防水度3000毫米以上。帳底的防水度一般需要在5000毫米以上。
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