Filtering device for ponds and the like

A filtering device for ponds and the like, comprising a filtering element comprised between a first and a second supporting surface, the distance between the supporting surfaces being adjustable so as to compress the filtering element by moving the supporting surfaces the one near the other, an actuating device that modifies the distance of the supporting surfaces and a reversible connecting member that selectively provides a connection between the actuating device and the supporting surface, such that the actuating device can alternatively:

• move unrelated to the motion of the surfaces so as to be placed in an operative configuration;
• or
• move integral to the surface so as to modify the distance between the surfaces in order to compress the filtering element,
• wherein the filtering element is compressed by pushing the actuating device towards the filtering element;
• wherein the reversible connecting member comprises pivoting blocks pivotally connected to the actuating device by oblong elements, the pivoting blocks being engageable on seats of the supporting surface, the actuating device comprising a handle connected to the oblong elements;
• and
• wherein the blocks have a substantially rectangular section capable of engaging with the seats, the seats having a complementary shape, such that by rotating knobs connected to the blocks, either the blocks could slide within the seats when the handle is placed in the operative position or it will be possible to avoid passage thereof when the handle is moved integral to the surface so as to compress the filtering element.