ES2229848B1 - PERFECTED DEVICE FOR BREEDING FISH. - Google Patents

Abstract

Improved device to raise fish. The fish-raising device includes a mesh bag suspended from a pontoon supported by submersions that have water as ballast and a mesh cover on the pontoon to close the mesh bag superiorly. Vertical guides emerge from the pontoon that connect the pontoon with an armor whose base is provided with guide steps. A mesh wall, which increases the breeding capacity, is fixed between the pontoon and the armor as well as peripherally attached to the vertical guides so that it can be retracted between the pontoon and the armor when the pontoon is hoisted to the surface.

Description

Improved device to raise fish.

The invention is an improved device for breed fish that is designed for use submerged in the sea open or in lakes, with considerable breeding capacity and designed for easy extraction of fish raised from the mesh bag that contains them.

In conventional methods of fish farming in calm sea and lakes, which use submerged breeding facilities, materials are produced that in high concentrations disturb and unbalance the ecosystem. Environmental pollution influences negatively in the ecological balance since it causes the decreased plankton flow and impoverishes the feeding of fish, thereby decreasing the desired crop production. The amount of farmed fish in the facility and disturbance environmental are proportional to each other.

Self-supporting facilities are known for fish farming, for example the one shown in the patent document Swedish SE 84-05854, or in its Spanish equivalent ES 549082, from Götmalm, for a device for fish farming and similar in open sea or lake, with a supported mesh bag by a pontoon whose depth position is variable and includes a armor that narrows up to support a cover of mesh that closes the mesh bag superiorly.

In addition, said device also includes a submerger that has water as ballast that can be released to the blow air and that is arranged at the lower end of the mesh bag, so that the submerger and the bottom of the bag mesh allow to be hoisted at the level of the water surface introducing air into the submerger tanks, which normally occurs when the fish are removed by suction raised and also when placing the fry in the mesh bags. The submerger is connected to the pontoon by connecting means folding, such as chains, to which the part of transition between the wall and the bottom of the mesh bag.

These facilities made so far, especially those self-supported by buoyancy buoys, have shown to support the open sea, but have an effect negative that occurs with the impact of the waves on the submersions both during breeding and on its rise when produce vertical movements and constant headers in the bags of breeding by the onslaught of the sea with fatigued situations or of Stress in some breeding species.

An additional problem is fish handling in its extraction from the mesh bag that contains them, which has It has been carried out until recently raising the mesh bag to the surface with the help of cranes or even more recently, by using suction devices conventional.

An object of the invention is to make possible the breeding of more fish in the open sea and in conditions of adaptability to the waves. Another object is to avoid abrupt headers of the mesh bags and cause fatigue of the animals. In addition the device will be designed so that the crop harvesting or tillage can be carried out without work manual.

Such purposes considered may be solved with the perfected device to raise fish proposed by the invention that includes a suspended mesh bag of an annular pontoon, supported by submersions that have water as a ballast to be lifted to the surface of the water from a variable position in depth by introducing air into the submerger tanks, and also includes a cover of mesh on the pontoon to close the mesh bag superiorly, being special feature of the invention that in the face of the pontoon turned out of the mesh bag emerge up a plurality of vertical guides that relate the pontoon to a armor whose annular base is equipped with respective and corresponding guide steps, the coaxial armor being and superiorly arranged on the pontoon, while a wall of mesh that increases the capacity of breeding is included between said pontoon and said armor that contour and peripherally attached to said plurality of vertical guides so that it can be folded between said pontoon and said armor when the pontoon is hoisted to the surface.

Said mesh wall is attached to each of the vertical guides through vertical alignments of connectors that they are adapted to cooperate with the guides and favor the folded from the mesh wall with the surface rise of the pontoon.

The connectors that make up each of the vertical alignments are related by connection members folding, for example chains, arranged between said pontoon and said armor.

To facilitate the extraction of fish Bred, the bottom of the mesh bag is hoisted to the surface of water by means of a lifting system by ropes and pulleys conveniently arranged between the pontoon and the armor.

According to a preferred embodiment of the invention, the perfected device for raising fish comprises a mesh bag with counterweights suspended from an annular pontoon supported by submersions that have water as ballast, so it is izable to the surface of the water from a variable position in depth by introducing air into the tanks of submersions

From the face of the ring pontoon turned out a plurality emerges from the mesh bag upwards of guides that are conveniently distributed in it, with equidistant preference in its annular contour.

An armor, which includes a mesh cover to close the mesh bag, it presents its base cancel with respective and corresponding guide steps adapted to allow the passage of one of the guides of said plurality of guides, and is coaxially aligned on the pontoon of so that each guide of said plurality of guides passes through a step of guide so that the armor and the pontoon are connected of Sliding way with each other.

A mesh wall, which increases the breeding capacity of the device, is comprised between the pontoon and the armor that inferiorly and superiorly contours it and to which it is fixed, in addition to being connected by said periphery to said plurality of vertical guides so that can be folded against the armor when the pontoon is raised to the surface of the
Water.

As the invention states, the wall of mesh is attached to each of the vertical guides by a vertical alignment of connectors adapted to cooperate with guides and favor the folding of the mesh wall with the rise from the pontoon to the surface of the water.

The connectors of each vertical alignment, with ringed form in the example, they are related by members of folding connection, in the form of chains or ropes, which are vertically arranged between the armor and the pontoon.

The bottom of the mesh bag is joined by its center to a rope, or cable, of suspension that is part of a lifting system consisting of ropes and pulleys that is conveniently arranged between the pontoon and the armor.

For a better understanding of what is stated here, accompanies this descriptive memory of a set of drawings in the that the preferred embodiment of the inventive object is shown, without that by your choice or that of your graphic representation is limited the scope of the peculiar characteristics of this request.

Figure 1 showing the drawing sheet is a elevation view of the perfected device for raising fish from according to the invention, with its extended mesh wall for show the full capacity of the brood volume. The figure illustrates also the situation of the device at a level lower than that of the water surface, represented by a non-straight line.

Figure 2 illustrates the improved device to raise fish according to figure 1, although with the mesh wall retracted after the approach of the pontoon to the armor. With this figure is intended to explain the rise of the device to the water surface.

Figure 3 shows the plan view of the perfected device for raising fish, according to figures 1 and 2, and simplified in relation to those given that it has been chosen for not representing in this figure the docking platform.

Looking at the figures, it is easily appreciated that the perfected device for raising fish includes at least one Mesh bag (1) suspended from an annular pontoon (2) supported by submersions (3) and also includes a mesh cover (4) on the pontoon (2) that closes above the mesh bag (1).

From the face of the annular pontoon (2) turn towards out of the mesh bag (1) a plurality emerges upwards of vertical guides (5), or vertical posts in the example that connect the pontoon (2) with an armor (6) whose annular base (7) it presents guide steps (8) adapted to the guides (5) and arranged the armor (6) coaxially and superiorly on the pontoon (2) so that the guide steps (8) are crossed by the guides (5), which they also provide their free end with stops (9) that limit the armor travel (6).

A mesh wall (10) that increases capacity breeding is between said pontoon (2) and said armor (6) that contour it, in addition to peripherally attached to said plurality of vertical guides (5) so that it can remain folded between said pontoon (2) and said armor (6) when lifting the pontoon (2) to the surface of the water (represented in the figures by a non-straight line).

Said mesh wall (10) is observed attached to each one of the vertical guides (5) by vertical alignments of connectors (11) adapted to cooperate with the guides (5) and favor the folding of the mesh wall (10) with the rise to pontoon surface (2).

The figures show, preferably in the Figure 1, that the connectors (11) of each vertical alignment are related by folding connection members (12), such as chains, fixed to the pontoon (2) and to the armor (6).

The device incorporates a lifting system the bottom of the mesh bag (1) formed by ropes (13) and pulleys (14) arranged in the pontoon (2) and in the armor (6).

A tillage and docking platform (15), protected with a railing (16), it is observed mounted on the base (7) of the armor (6).

Figures 1 and 2 illustrate each position of use of the improved device to raise fish. Figure 1 illustrates the submerged position of the device after ballasting, in so much so that figure 2 illustrates the position of the device after its rising to the surface of the water and the pontoon (2) has retracted, in its rise, to the mesh wall (10) against the annular base (7) of the armor (6) until the meeting of the respective stops (17) that They limit the encounter between one and the other.

On the rise, the pontoon (2) causes the withdrawal of the mesh wall (10) as it successively reaches the connectors (11) of the connector alignments. In addition, the ropes (13) of the lifting system run through the pulleys (14) which are fixed on at least two of the posts (5) diametrically opposed on the pontoon (2) and also on the armor (6), bringing the rope end centrally attached to the bottom of the mesh bag (1) stretches it until it is close to the roof of the armor (6), position that coincides with that reflected in the figure 2.

It is in this position, that has originated a space collection (18) of fish between the mesh cover (4), the folded mesh wall (10) and the bottom of the mesh bag (1), when the fish raised will be collected by the means that consider optimal.

Claims (4)

1. Improved device for raising fish, which includes at least one mesh bag suspended from an annular pontoon supported by submersions that have water as a ballast, so it can be lifted to the surface of the water from a variable depth position by introducing air into the submerger tanks, and also includes a mesh cover on the pontoon to close the mesh bag superiorly, characterized in that a plurality of vertical guides that relate the surface emerge from the pontoon face turned out of the mesh bag. pontoon with a reinforcement whose annular base is provided with respective and corresponding guide steps, the coaxial reinforcement being superiorly arranged on the pontoon, while a mesh wall that increases the breeding capacity is comprised between said pontoon and said reinforcement they contour it and peripherally joined to said plurality of vertical guides so that it can be replicated thrown between said pontoon and said armor when the pontoon is raised to the surface. 2. Improved device for raising fish, according to the first claim, characterized in that said mesh wall is connected to each of the vertical guides by means of vertical alignments of connectors adapted to cooperate with the guides and favor the folding of the mesh wall with the rise to the surface of the pontoon. 3. Improved device for raising fish, according to the first and second claims, characterized in that the connectors of each of the vertical alignments are related by folding connecting members, for example chains, arranged between said pontoon and said reinforcement. 4. Improved device for raising fish, according to the preceding claims, characterized in that the bottom of the mesh bag is liftable to the water surface by means of a rope and pulley lifting system conveniently arranged between said pontoon and said armor.