地下消火栓井内空间较小,当里边淤积污泥需要清扫时,操作十分不便。日本制造了一种专门用于清扫地下消火栓井内污泥的器具,解决了这个难题。这种地下消火栓清扫器由两个部件组成,一个是带柄的方形铁铲,一个是带柄的方形铁勺。两个柄的长度约80厘米,由下往上10厘米分别为铁铲和铁勺。再往上20厘米处为一个弯形交叉点,就象一把大钳子的交叉点那样,用一个元宝螺丝固定。拆下螺丝就是 Underground fire hydrant wells within the smaller space, when silt sludge inside the need to clean, the operation is very inconvenient. Japan has created a device specifically for cleaning sludge in underground fire hydrant wells to solve this problem. This underground hydrant cleaner consists of two parts, a square shovel with a shank and a square spoon with a shank. The two handles are about 80 cm in length and 10 cm from bottom to top, respectively shovels and iron spoons. Twenty centimeters further up a beveled intersection, like a cross at a big plier, is secured with a ingot screw. Remove the screw is