Device for spraying fluid

The invention relates to a device for spraying a fluid, the device comprising a conduit (15), a blade (20) movable in the conduit (15), and a housing (24) defining a storage volume (60) for accommodating the blade (20) in a position for storing the blade (20), the blade (20) being configured such that when the blade (20) is moved in the conduit, the blade (20) is moved in the conduit (15). And a storage volume (60) urging fluid present in the conduit (15) forward of the scraper (20), the storage volume (60) being in fluid communication with the conduit (15) and being configured such that the scraper (20) can move between the storage volume (60) and the conduit (15). The scraper (20) comprises a first magnet (50) and the housing (24) comprises a second magnet (70) capable of exerting a first force on the first magnet (50) to move the scraper (20) from the storage volume (60) to the conduit (15). 本发明涉及一种用于喷涂流体的装置，该装置包括管道(15)、刮刀(20)和外壳(24)，刮刀能够在管道(15)中移动，外壳限定存放体积(60)，存放体积用于将刮刀(20)容纳在用于存放刮刀(20)的位置中，刮刀(20)构造成当刮刀(2