Constructive Design for Reservoir and Pool Cleaning Device

Abstract

Constructive design for reservoir and pool cleaning device using successive and intermittent water jets, adjacent to the surface of the bottom of said reservoirs and pools, comprising a cleaning head built into said bottom, equipped with a piston (21) substantially cylindrical movable between a first lower resting position and a second operation position, in which the upper part of said piston surpasses said bottom leaving uncovered the outlet hole (29) of said (43), the direction of the successive jets undergoing random angular increases by means of said piston's axial rotation at the interval of its movement between the referred positions, the momentum produced by said rotation provided only by the jet's reaction force (43) expelled through said hole, which axel is eccentrically placed in relation to said piston's axel.

Description

FIELD OF THE INVENTION[0001]The present utility model refers to devices used in pool cleaning systems, specially adapted to remove sediments and debris accumulated at the bottom of reservoirs and pools.BACKGROUND OF THE STATE OF THE ART[0002]Maintaining the proper conditions to use of pools comprises a group of processes that intend to (1) keep the water's chemical characteristics within predefined parameters; (2) avoid proliferation of microorganisms and algae; (3) guarantee the water's transparency by removing suspended matter and (4) maintain the bottom free of sediments and debris deposited there by decantation.[0003]Traditionally, to remove decanted material hand bottom vacuum cleaners are used. However, this process must be carried out frequently and requires specialized labour, increasing the costs of operating pools. The advantages resulting from automating this process have led to the conception of alternative methods, based on the introduction of turbulence at the bottom, ...

AI Technical Summary

Benefits of technology

[0011]Another objective is to structurally provide simple devices

Problems solved by technology

However, this process must be carried out frequently and requires specialized labour, increasing the costs of operating pools.

Although theoretically apparent to be adequate, the system described has some practical inconveniences, due to the complexity of the mechanism used to obtain the above mentioned angular movement, which results in a high production cost.

Additionally, the guide pins, necessarily thin because of the nature of the system, have their useful life limited due to wear by friction.

Despite having a simpler structure, the device described in document U.S. Pat. No. 4,212,088 also has production problems, mainly regarding the manufacture of said turbine.

Another inconvenience, clearly seen cross section view of FIG. 2, is the format of channel 66-68 that gives way to the water and, due to its curved design, requires special production techniques.

Yet another disadvantage of that system is the fact of having to gradually open the valve that feeds the head, as a fast opening would make the piston move nearly instantaneously to the upper position, in which the turning of the piston is locked.

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