| 摘要 |
<p>A spraying equipment, especially relates a water pipe which is unable to fold and damage when it is in use. The pipe is made of a material with some hardness that can support the water passage when water passing, for example, it may be rubber, nylon, metal or fire-extinguishing water pipe. A rubber layer with some hardness is adhered on the inner and outer walls of the fire-extinguishing water pipe respectively. A supporting element is provided in the middle part of the pipe, through which the pipe can stretch smoothly when the pipe is in use and is unable to fold. The supporting element may be various shapes and can be made of various materials, such as plastic piece with memorial function, steel spring or stretchable thin pipe. Since the supporting element is arranged in the middle part of the water pipe, it can keep the stream smooth, the pipe can be easily to coil on a turntable and has small volume. The invention may be employed in courtyard, cleaning agent and fire-extinguishing equipment.</p> |
