Intelligent water meter external device

The utility model discloses an external device of an intelligent water meter. The water meter comprises a water meter body, a box cover, a meter cover, a protective cover, latch hooks and screws, wherein the box cover comprises a box cover clamping hook, a meter cover clamping groove, a first lock hook inserting hole, a lock hook clamping groove, a first open groove, a screw penetrating hole and aprotective cover guide groove; the meter cover comprises a cylinder and a taking part; the protective cover further comprises a covering groove, a guiding device, a second lock hook inserting hole, an anti-retreating groove and a covering plate. The lock hook comprises a hook lock clamping hook, an anti-rotation device, an easy-to-break groove and a second open groove, the box cover, the meter cover, the protective cover and the lock hook are sequentially installed on the water meter body, and the screws penetrate through the screw penetrating holes to achieve fixed connection of the box cover, the meter cover and th