Curtain locks - new patents

The utility model discloses a curtain lock, which comprises a lock shell with an inner cavity. Two lockable gears are arranged in the lock shell, one gear is rotatably arranged in the lock shell, and the other is arranged in the lock shell. The inner surface of the side wall of the lock shell has a tooth surface for the movable gear to roll up and down, the teeth of the tooth surface are matched with the teeth of the movable gear, and the movable gear has a clamped state and a loosened state, when the movable gear is clamped In the state, the movable gear is clamped between the rotating gear and the tooth surface; when the movable gear is in the released state, the movable gear is separated from the rotating gear or the tooth surface, and the side wall of the lock housing having the tooth surface is provided There are reinforcements. When the movable gear is stably caught between the tooth surface and the rotating gear, the tooth surface is easily cracked, and the reinforcing member is provided on the side wall having the tooth surface, so that the strength of the tooth surface is increased, and the force is prevented. If the part is cracked, the life of the lock is lengthened.