Pool for performing physical activity in counter-current regime

Abstract

A tank (1, 100) configured to carry out physical activity in a counter-current regime comprises a swimming section (2, 102), at least one propulsion section (3, 103, 103′) along which a fluid is forced, at least a first section connecting section (4, 104) and at least a second connecting section (5, 105) for the connection of respective ends of the swimming section (2, 102) and of the propulsion section (3, 103, 103′) at least one long fluid propulsion loop path, wherein the at least one first connecting section (4, 104) comprises a plurality of first curved channels and the at least one second connecting section (5, 105) comprises a plurality of second curved channels and wherein the platform (8, 108) is movable.

1 . A tank configured to perform physical activity in counter-current regime comprising a swimming section, at least one propulsion section along which a fluid is forced, wherein the swimming section and the at least one propulsion section develop along a longitudinal direction, at least a first connecting section and at least a second connecting section for the connection, in fluid communication, of respective ends of the swimming section and the at least one propulsion section so as to define at least one loop path along which to force the fluid, a platform interposed between the at least a first connecting section and the at least a second connecting section, wherein the at least one first connecting section comprises a plurality of first curved channels, the at least one second connecting section comprises a plurality of second curved channels, and wherein the platform is movable between an intermediate lowered position wherein is distal from an access opening to the swimming section and a raised position wherein it hermetically closes the opening preventing access to the swimming section, wherein optionally the platform is movable in a lowered position, in abutment or substantially in abutment against the bottom portion of the tank to act as a support surface. 
     
     
         2 . The tank according to  claim 1 , wherein the at least one first connecting section comprises a plurality first curved channels with an increasing section starting from the at least one propulsion section towards the swimming section and wherein the at least one second connecting section comprises a plurality of second curved channels with a decreasing section starting from the swimming section towards the at least one propulsion section. 
     
     
         3 . The tank according to  claim 1 , wherein the at least one first connecting section comprises a plurality of first curved walls “C-shaped” or “U-shaped”, arranged one inside the other, mutually decentralized and with the respective concavities facing towards the swimming section and the at least one propulsion section. 
     
     
         4 . The tank according to  claim 1 , wherein the at least one second connecting section comprises a plurality of first curved walls “C-shaped” or “U-shaped”, arranged one inside the other, mutually decentralized and with the respective concavities facing towards the swimming section and the at least one propulsion section. 
     
     
         5 . The tank according to  claim 1 , comprising at least one first baffle arranged at the at least one first connecting section and a second baffle arranged at the at least one second connecting section, wherein the first baffle and the second baffle are configured to reduce turbulence or detachment of the flow at respective opposite ends of the platform. 
     
     
         6 . The tank according to  claim 1 , comprising propulsion members configured to impart a momentum to a fluid comprised in the tank, wherein the propulsion members comprise at least one propeller operatively connected to a motor for its operation in rotation, wherein the at least one propeller is arranged along the at least one second connecting section, below the platform. 
     
     
         7 . The tank according to  claim 1 , wherein the platform arranged in the intermediate lowered position defines a diaphragm for separating the swimming section and the at least one propulsion section, keeping a flow which is forced along the swimming section and a flow which is forced along the at least one propulsion section in counter-current with respect to the flow along the swimming section separated to each other. 
     
     
         8 . The tank according to  claim 5 , wherein the first baffle is provided along the at least one first connecting section, inside a cavity delimited by a first internal curved wall comprised in the at least one first connecting section, and the second baffle is arranged along the at least one second connecting section inside a cavity delimited by a second internal curved wall comprised in the at least one second connecting section. 
     
     
         9 . The tank according to  claim 8 , wherein the first baffle is connected to the first grid and wherein the second baffle is connected to the second grid. 
     
     
         10 . The tank according to  claim 8 , wherein the first baffle has a cross section with a decreasing shape along the longitudinal direction from the at least a first connecting portion to the swimming section. 
     
     
         11 . The tank according to  claim 8 , wherein the first baffle has a cross-section configured as an ogive or drop-shaped element or a hydrodynamic element provided with a rounded end arranged inside the first inner curved wall, to which a descending portion which is connected to the platform follows, along the longitudinal direction with the flow forward direction. 
     
     
         12 . The tank according to  claim 5 , wherein the platform, the first baffle and the second baffle are connected to each other to define a single body comprised along the swimming section, movable between the lowered position and the raised position. 
     
     
         13 . The tank according to  claim 1 , comprising movement members configured to selectively move the platform between the lowered and raised positions and intermediate positions. 
     
     
         14 . The tank according to  claim 13 , wherein the movement members comprise a motor unit operatively connected to the platform by means of motion transmission members and guide members configured to guide the platform during its movement.