Adjustable-volume metering pump automatic dispenser device

An adjustable-volume metering pump automatic dispenser device made up of two reservoirs;

• a reservoir and an auxiliary reservoir;
• comprising:
• the reservoir contains a sanitary product, and
• the adjustable-volume metering pump is mounted by a sealed assembly in the vertical cylindrical recess in the bottom of this reservoir,
• each time the toilet is used, the auxiliary reservoir releases the previously received dose of sanitary product into the water at the end of the toilet flush, and
• then receives from the adjustable-volume metering pump the dose of product required for the next use of the toilet,
• the adjustable-volume metering pump comprises a float fixed to a piston slideably mounted on the metering pump,
• at its middle it comprises a tapped through-hole into which an end-stop adjusting rod is screwed, the volume being adjusted by screwing in or out the end-stop adjusting rod, one end of which constitutes an adjustable end-stop with which the piston comes into contact, the device thus regulating and limiting the stroke and determining the volume of the dose of product entering and leaving the adjustable-volume metering pump,
• the end-stop adjusting rod is operated using an indexed knob,
• the adjustable-volume metering pump comprises:
• an inlet valve via which the sanitary product contained in the reservoir enters on top of the piston;
• an outlet valve on a carrier of this valve is connected to a duct, the other end of which duct is connected to the pouring spout that enters the auxiliary reservoir,
• the auxiliary reservoir comprises:
• a means for filling it with water from the toilet cistern;
• in its bottom part, a discharge device made up of a float mounted on an articulated lever which operates a discharge valve.