Device for sucking up liquid from the ground

Abstract

A device for sucking up liquid on a floor includes an outside wall defining a first enclosure that is open at least via openings for passing a liquid to the inside of the first enclosure and a pipe in fluid flow connection with a liquid suction pump said first enclosure. The device includes an inside wall defining a second enclosure, the second enclosure being open at least via openings formed through the inside wall so as to allow liquid to pass from the first enclosure into the second enclosure, the pipe opening out into the inside of the second enclosure.

1 . A device for sucking up liquid on a floor, the device having an outside wall defining a first enclosure that is open at least via openings formed through the outside wall so as to allow liquid to pass from outside the first enclosure to inside the first enclosure, the device having a pipe presenting a first end arranged for putting into fluid flow connection with a liquid suction pump and a second end of the pipe in fluid flow connection with said first enclosure so as to be able to suck liquid present in the first enclosure into said pipe, the device being characterized in that it includes an inside wall defining a second enclosure, the second enclosure being open at least via openings formed through the inside wall so as to allow liquid to pass from the first enclosure into the second enclosure and said second end of the pipe opening out into the inside of the second enclosure at a distance from the first enclosure and wherein:
 the openings formed through the inside wall are formed exclusively between a suction limit plane for sucking through the inside wall and a bearing plane of the inside wall; and   the openings formed through the outside wall are formed exclusively between a suction limit plane for sucking through the outside wall and a bearing plane of the outside wall, at least some of the openings formed through the outside wall being formed between the suction limit plane for sucking through the outside wall and the suction limit plane for sucking through the inside wall.   
     
     
         2 . The device according to  claim 1 , wherein said second enclosure is located inside said first enclosure. 
     
     
         3 . The device according to  claim 1 , wherein the suction limit plane for sucking through the inside wall is spaced apart from the bearing plane of the inside wall by a height of value no more than 1 centimeter. 
     
     
         4 . The device according to  claim 1 , wherein at least some of the openings formed through the outside wall extend between the suction limit plane for sucking through the inside wall and the bearing plane of the inside wall. 
     
     
         5 . The device according to  claim 3 , wherein the bearing plane of the inside wall and the bearing plane of the outside wall are mutually coplanar. 
     
     
         6 . The device according to  claim 3 , wherein said:
 suction limit plane for sucking through the inside wall;   bearing plane of the inside wall;   suction limit plane for sucking through the outside wall; and   bearing plane of the outside wall;   
       are mutually parallel planes. 
     
     
         7 . The device according to  claim 1 , comprising a bottom piece bearing against the inside wall, the bottom piece forming a bottom face of the second enclosure. 
     
     
         8 . The device according to  claim 7 , wherein the bottom piece comprises a bottom plate forming the bottom face of the second enclosure together with ribs, each of the ribs extending perpendicularly relative to said bottom plate, each of these ribs having a first terminal end arranged facing the inside wall and a second terminal end arranged in a central zone of the second enclosure into which the second end of the pipe opens out. 
     
     
         9 . The device according to  claim 7 , wherein the second enclosure is open towards a bottom plane in which a major portion of said bottom piece extends. 
     
     
         10 . The device according to  claim 7 , comprising a rod extending inside the second enclosure, the rod extending from a top face of the second enclosure to a central zone of said bottom piece, the rod and the bottom piece being mechanically assembled one against the other. 
     
     
         11 . The device according to  claim 1 , wherein all of the openings formed through the inside wall extend lengthwise in the same plane that is common to all of the openings in the inside wall. 
     
     
         12 . An assembly for sucking up liquid on a floor, the assembly comprising the device according to  claim 1  and a liquid suction pump connected to said first end of the pipe, the pump being connected to a control unit of the pump itself connected to a probe adapted to detect liquid reaching a level relative to the pump, the control unit being arranged to cause the pump to operate in response to the probe detecting liquid at said level. 
     
     
         13 . The assembly according to  claim 12 , wherein the pump includes a suction inlet and a discharge outlet, the first end of the pipe of the device being arranged to be put releasably into fluid flow connection with said suction inlet in such a manner that when the pipe is connected to the suction inlet of the pump and a bearing face of the device is placed on a plane floor, the pump, under the effect of its own weight, opposes the device moving away from said plane floor. 
     
     
         14 . The assembly according to  claim 13 , wherein the pump has legs with ends that are coplanar with the bearing face of the device when the first end of the pipe of the device is in fluid flow connection with said suction inlet. 
     
     
         15 . The assembly according to  claim 13 , wherein the pump is assembled with the first end of the pipe of the device in such a manner that when the bearing face of the device is positioned on a plane floor in order to suck up liquid therefrom, the pump is then supported by the device. 
     
     
         16 . The assembly according to  claim 13 , wherein the pump is self-priming when dry. 
     
     
         17 . The assembly according to  claim 13 , wherein the pump comprises a chamber in fluid flow connection with the suction inlet and with the discharge outlet, a movable part arranged inside the chamber, and an electric motor located outside the chamber, the electric motor being connected to the movable part by a coupling mechanism in such a manner that actuating the electric motor causes the movable part to perform reciprocating motion relative to the chamber in order to move a fluid from the suction inlet to the discharge outlet. 
     
     
         18 . The assembly according to  claim 17 , wherein the pump includes a circular first upstream lip placed closer to the suction inlet than to the discharge outlet and a circular first downstream lip placed closer to the discharge outlet than to the suction inlet, these circular first upstream and downstream lips being placed between one of the sides of said movable part of the chamber to define a first space between the circular first upstream and downstream lips, these circular first upstream and downstream lips being such that:
 over a first portion of said reciprocating movement of said movable part relative to the chamber, the circular first downstream lip provides sealing preventing fluid from passing from said discharge outlet to said first space, the circular first upstream lip then allowing free passage for fluid between said first space and said suction inlet; and that   over a second portion of said reciprocating movement of said movable part relative to the chamber, the circular first upstream lip provides sealing preventing fluid from passing from said first space to said suction inlet, the circular first downstream lip being arranged:   firstly to allow fluid to pass between said first space and said discharge outlet when the fluid pressure inside said first space is higher than the fluid pressure at the discharge outlet; and   secondly to prevent fluid from passing from said discharge outlet  112  to said first space.   
     
     
         19 . The assembly according to  claim 13 , wherein the device for sucking up liquid on a floor forms a stand for supporting the pump. 
     
     
         20 . The assembly according to  claim 13 , wherein the assembly is adapted to adopt selectively either a liquid transfer configuration or a basement-drainer configuration, in the liquid transfer configuration, the device is assembled to an attachment fitting of the pump situated at a distance from the suction inlet of the pump, and in the basement-drainer configuration, the device is in fluid flow connection with the suction inlet of the pump, the device forming a stand for supporting the pump, the device then being arranged to filter the fluid sucked in by the pump.