Manual anti-theft flat valve

The invention relates to a flat valve, in particular to a manual anti-theft flat valve. The manual anti-theft flat valve comprises a connecting base I, an anti-theft plate, a bending part, a vertical frame, a knocking rod, a limiting part, a compression spring II and an embedded nail, the rear end of an upper valve body is fixedly connected with the connecting base I, the anti-theft plate is slidably connected to the connecting base I, the upper end of the anti-theft plate is fixedly connected with the bending part, the vertical frame is fixedly connected to the rear end of the lower portion of the anti-theft plate, and the knocking rod is slidably connected to the vertical frame and the anti-theft plate. The knocking rod is fixedly connected with a limiting part, the lower end face of the limiting part is attached to the lower portion of the anti-theft plate, the knocking rod is sleeved with the compression spring II, the two ends of the compression spring II make contact with the anti-theft plate and the ve