Multi-directional actuator for a pump
View Patent ↗A steam mop having a main body including a water pump for pumping water from a water tank to a steam generator in response to any movement of the mop is provided. Movement of the mop causes a pump actuator to slide within a frame. The actuator has a camming surface with a pump piston rod biased against the camming surface that causes the pump piston rod to move in and out of a pump cylinder when the actuator moves. This operates a the pump to pump water to the steam generator for feeding steam to a steam pad mounted on a mop steam frame connected to the steam generator outlet.
1. An actuator assembly including an actuator body and an actuator frame for actuating a mechanical device, comprising:
an rigid actuator body including a disk shaped section with a flange and having an outer surface with an arcuate depression forming a camming surface;
an actuator frame having a groove for receiving the flange of the actuator body and allowing the actuator flange to move in all transverse directions within the groove, when the actuator is displaced in any direction, and,
the camming surface displaces a rigid element biased towards and contacting the camming surface for activating a mechanical device connected to the mechanical device.
2. A steam mop, comprising:
a mop housing with a user handle connected to the housing at one end and a steam frame connected to the other end;
the mop housing including a water container and a water pump having a piston rod for movement to pump water;
a steam generator connected to the output of the water pump, and the output of the steam generator connected to the steam frame;
a rigid actuator body and actuator assembly seated in the housing with the actuator body connected to the mop handle,
the assembly including an actuator frame with a grove adapted to receive a flange of the actuator body and allowing the flange to move in all transverse directions within the groove when the actuator body is displaced in any direction;
the actuator body having on outer surface with a depression forming a camming surface facing the the water pump; and
the piston rod biased towards and contacting the camming surface,
whereby the piston rod moves in response to movement of the actuator within the groove to pump water to the steam generator.
3. The steam mop of claim 2 , wherein the water pump is a mechanical piston pump with at least one-way inlet valve and a one-way outlet valve.
4. The steam mop of claim 3 , wherein the valves are substantially conical in shape and made of a substantially flexible material.
5. The steam mop of claim 2 , wherein the water pump is a two-way mechanical pump, comprising:
a pump cylinder having a first end and a second end with a first unidirectional inlet valve and a second unidirectional inlet valve at the first end and a second unidirectional outlet valve and a second unidirectional outlet valve at the second end;
a piston dividing the cylinder into a first chamber and a second chamber with the respective inlet and outlet valves connected thereto with the first and second inlet valve connected to a water source and the outlet valves connected to a water receiver;
whereby movement of the piston towards the second end expels water out of the second chamber through the second outlet valve and draws water into the first chamber through the first inlet valve and movement of the piston towards the first end expels water out of the first chamber through the first outlet valve and draws water into the second chamber through the second inlet valve.
6. The steam mop of claim 2 , wherein the groove in the actuator frame is substantially parallel to the steam frame.
7. The steam mop of claim 2 , wherein the depression in the actuator body facing the water pump is substantially arcuate.
8. The actuator assembly of claim 1 , wherein the mechanical device is a pump having a piston with a piston rod and the rigid element biased toward the camming surface is the piston nod of the pump.