| 摘要 |
A water filter with filter cartridge block alerting and an alerting method. The filter main body (3) is accommodated with a filter cartridge (4) and is arranged with a before-filtering water cavity (31). A filter upper cover (1) covers a top of the filter main body (3). The before-filtering water cavity (31) is accommodated with a floating-ball-type indicating apparatus (2), which comprises a floating ball (21), a connecting rod (22) and a color scale (23). The connecting rod (22) is mounted on an inner surface of the filter upper cover (1) in a rotatable way with help of a hinge support (12). A front end of the connecting rod (22) is mounted with the floating ball (21). The connecting rod (22) is also arranged with the color scale (23). Matching the color scale (23), a transparent visual cover (11) is arranged on an upper surface of the filter upper cover (1). Advantages of the water filter are a simple structure, reminding a user to replace the filter cartridge in proper time, and saving use costs. |
