Portable water tank assembly for a dust emitting construction machine
A portable water tank assembly for a dust emitting construction machine, such as a machine for cutting concrete, stone, ceramic materials and the like, said assembly comprising a water container ( 1 ) and an electric pump ( 2 ) powered by a battery for pumping water from the container ( 1 ) through an outlet to the construction machine. To provide a portable water tank assembly which provides a long service life without changing battery, is easy to handle and carry and that is robust and reliable, the pump is a low pressure pump ( 2 ), of 0.1-1.5 bar, preferably of 0.3-1.2 bar, that is preferably submersible and placed inside the water container ( 1 ); and said assembly has at least 5 liter capacity. Preferably the hood member ( 3 ) has a first compartment ( 5 ) for a battery for delivering power to the pump ( 2 ) and a battery ( 6 ) located in the compartment ( 5 ), and it may have a second compartment ( 11 ) for a battery charger ( 12 ) and a third compartment ( 13 ) for a spare battery.
1. A portable water tank assembly for a dust emitting construction machine, said assembly comprising
a water container and an electric pump powered by a battery for pumping water from the container through an outlet to the construction machine,
the pump is a low pressure pump of 0.1-1.5 bar; and
said assembly has at least 5 liter capacity.
2. The portable water tank assembly as claimed in claim 1 , wherein said hood member is at least partly openable.
3. The portable water tank assembly as claimed in claim 1 , wherein said hood member has a first compartment for a battery for delivering power to the pump, and preferably a battery is located in the first compartment.
4. The portable water tank assembly as claimed in claim 3 , wherein said hood member has a second compartment for housing a battery charger for charging the battery and preferably a battery charger is located in the second compartment.
5. The portable water tank assembly as claimed in claim 4 , wherein said hood member has a third compartment for housing a spare battery and preferably a spare battery is located in the third compartment.
6. The portable water tank assembly as claimed in claim 1 , wherein said hood member includes a handle for carrying the water tank assembly.
7. The portable water tank assembly as claimed in claim 1 , wherein the water container has an upwards protruding flange to which the hood member is attached, preferably with screws.
8. The portable water tank assembly as claimed in claim 1 , wherein said electronic circuit board includes a timer function for avoiding discharging the battery by mistake and preferably includes a voltage monitor for protecting the battery by avoiding the voltage falling below a predetermined level.
9. The portable water tank assembly as claimed in claim 6 , wherein said hood member has a power switch located on the handle for starting and stopping the pump.
10. The portable water tank assembly as claimed in claim 1 , further comprising a foot member attached to a bottom portion of the water container.
11. The portable water tank assembly as claimed in claim 10 , wherein the water container has a bottom flange, around which the foot member is attached.
12. The portable water tank assembly as claimed in claim 10 , wherein the bottom portion and the foot member define a recessed annular space for housing a coiled hose, which in an uncoiled state is intended to connect the water tank assembly to the construction machine.
13. The portable water tank assembly as claimed in claim 12 , wherein the hose has a free end provided with a connector having an integrated stop valve.
14. The portable water tank assembly as claimed in claim 13 , wherein the hood member has a highly located holder for the free end of the hose.
15. The portable water tank assembly as claimed in claim 1 , wherein said low pressure pump is a non self priming pump located close to the bottom of the water container, inside or outside the water container.
16. The portable water tank assembly as claimed in claim 15 , wherein said non self priming pump is a centrifugal pump.
17. The portable water tank assembly as claimed in claim 1 , wherein said water container has a volume of at most 17 liters, and preferably with a full tank has a maximum weight of at most 20 kg.
18. The portable water tank assembly as claimed in claim 1 , wherein the pump is a low pressure pump of 0.3-1.2 bar, submersible and placed inside the water container.
19. The portable water tank as claimed in claim 17 , wherein the volume of the water container is about 10 liters and the full tank has a maximum weight of about 14 kg.