JPH04234927A - Remote-controlled apparatus for cleaning culturing crawl net - Google Patents

Abstract

PURPOSE:To obtain the subject apparatus capable of cleaning a culturing crawl net from the outside by carrying out water-surface travel and underwater travel and changing the posture with dual-purpose tanks for air and water and housing shells and algae scraped out with a cleaning tool in a recovering cage. CONSTITUTION:The top surface of a hollow body 1 is provided with an air tank 2 and dual-purpose tanks 3 and 4 for air and water having a pipe tip 9 for the air and a pipe tip 10 for the water are installed. Advancing propeller type screws 6 and 6 on both sides and left and right moving propeller type screws 7 and 7 are used to enable travel. The front end face is equipped with cleaning tools 8 and an underwater camera. A weight 5 is provided in the center of the hollow body and the back end face is equipped with a recovering cage to house shells and algae scraped out with rotating brushes of the cleaning tools in the recovering cage. Driving and stopping of respective motors are carried out by switch operation from a power source loaded onto a small boat through lead wires.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning, removing, and recovering shellfish and algae attached to the nets of aquaculture cages set in water for cultivating fish.

0002

[Prior Art] In order to cultivate fish for a long period of time, aquaculture cage nets are laid underwater, and when shellfish and algae adhere to the surface of the nets and the meshes are blocked, the water inside the nets cannot flow back. This can inhibit the growth of fish, cause their physical condition to deteriorate due to lack of oxygen, and even lead to their death. Furthermore, the resistance of the net may increase due to waves, etc., and the net may be torn. Therefore, nets with shellfish and algae on them were moved to new cages that had been prepared in advance, and then brought back to land and cleaned. However, moving fish damages the fish body,
Significantly reduce value. Therefore, in order to clean and remove shellfish and algae that have adhered to the nets of aquaculture cages laid in the water, divers go underwater and spray high-pressure water toward the nets, and workers work around the aquaculture cages. However, people now use vacuum cleaners to clean the shellfish and algae that cling to their nets. In the case of the latter vacuum cleaner, for example, published patent publications
Hei 1-108929 Underwater installation net cleaning device, Hei 1-
281024 Underwater adhesion removal equipment, Hei 2-26862
7 Vacuum cleaner for aquaculture cage net and Hei 2-276522
As disclosed in the net cleaning device, the vacuum cleaner is suspended from the frame of the aquaculture cage with a rope, is attached to a guide rail or guide bar, or is attached to a rod, and is raised and lowered by power or human power. was. In this way, people had to rely on humans to move the vacuum cleaner around the cage.

0003

[Problems to be Solved by the Invention] Conventional cleaning devices for cleaning the nets of fish farms have the following drawbacks. (a) Attachment/removal of the purification device to the cage frame;
Several workers had to be on hand to move to other cage frames. (b) The bottom net of the aquaculture cage could not be cleaned. (c) Shellfish and algae that had been cleaned and removed were simply dumped into the water, contaminating the water and seriously harming the habitat of fish. The present invention is made to solve these drawbacks.

0004

[Means for solving the problem] An air tank is provided on the upper surface of the hollow body, a dual-use tank for air and water has an air pipe tip and a water pipe tip on the top and bottom surfaces, and a cleaning tool driven by a motor is provided on the front end surface. An underwater camera is mounted on the rear end, a recovery cage is mounted on the rear end, a propeller-type propulsion device for forward movement driven by a motor is mounted on both sides, and a propeller-type propulsion device for left and right movement driven by a motor at right angles to the hollow fuselage is placed on the bottom surface in the center of the hollow fuselage. A cleaning device of the present invention provided with a weight, an air supply device such as a compressor provided at a remote location,
Connect water supply devices such as pumps and electricity generation devices such as generators and storage batteries with hoses and conductive wires, operate the opening/closing mechanism for air supply devices and water supply devices, operate the control mechanism for electricity generation devices, and connect them to nearby We grasped the situation through an underwater camera on a monitor TV placed in the cage, and the purifier was self-propelled to the aquaculture cage to remove shellfish and algae attached to the side nets in a horizontal position, and to remove shellfish and algae attached to the bottom net in an upright position. It is cleaned and removed and stored in a collection basket. The cleaning tool of the cleaning device of the present invention consists of one or more pairs of rotating brushes, and each rotating brush has a synthetic resin monofilament with a diameter of 1.5 mm to 3 mm attached to a shaft on which a motor is attached. The fibers are flocked in spiral rows or in multiple rows in opposite directions from both ends of the shaft toward the center, and the synthetic resin used for this can be heated and melted and processed into monofilament either unstretched or stretched. Either one may be used, but polyester and nylon are particularly preferred because the former provides elasticity and the latter provides flexibility when stretched. Also,
A plurality of monofilaments made of different types of synthetic resins may be combined and flocked to the shaft. One or more pairs of rotating brushes may be arranged horizontally above and below, or may be arranged vertically left and right. The weight of the cleaning device of the present invention may have the same weight on the side, top, and bottom surfaces, or may be lighter and heavier than each other. The collection basket is removable and can be made of wood, bamboo, metal, or synthetic resin. Further, the cross-sectional shape of the hollow body may be rectangular, polygonal, or circular.

[0005]

[Operation] In the cleaning device of the present invention, air is sent from the air supply device to the air/water tanks on the upper and lower surfaces of the hollow body, and the control mechanism is operated from the electric generator to drive the propeller type propulsion machine for forward movement. When the device travels on water to the aquaculture cage and approaches the aquaculture cage, the air in the tank for both air and water at the bottom begins to be discharged by operating the opening/closing mechanism of the air supply device.At the same time, the opening/closing mechanism of the water supply device is operated to release water. is gradually sent, and while the cleaning device is settling, the cleaning tool on the front end is pressed against the side net from the outside of the aquaculture cage, and the control mechanism is operated from the electric generator to drive the motor of the cleaning tool, and each pair of rotating brushes is are rotated in opposite directions so that water is caught between two rotating brushes at the rear of the hollow body, and the brushes scrape out shellfish and algae that have adhered to the side nets. The scraped out shellfish and algae pass through the hollow body along with the water flow, and are stored in a collection basket at the rear end of the hollow body using the hydraulic power generated by the forward propeller-type propulsion machine. Operate the opening/closing mechanism of the air supply device and water supply device to increase/decrease the amount of water in the air/water tank on the bottom of the hollow fuselage to raise or lower the purifier, or operate the control mechanism from the electric generator to propeller-type propulsion for left and right movement. The machine is driven to move the cleaning device to the right or left to clean and remove shellfish and algae that have adhered to the entire circumference of the side net and store them in a collection basket. Next, air is sent from the air supply device to the air/water tank on the bottom of the hollow fuselage to discharge water, and water is gradually fed from the water supply device to the air/water tank on the top of the hollow fuselage. On the fulcrum, the cleaning device stands upright with the cleaning tool on top. Furthermore, the amount of water in the air/water tank on the top surface is increased, and the purifier is lowered, and the propeller-type propulsion machine for left and right movement is guided from the electric generator to the bottom directly under the bottom screen by operating the control mechanism, and the air supply device is moved to the upper surface. At the same time, air is sent to the air/water tank of the tank, and the water is discharged by operating the opening/closing mechanism of the water supply device, the purifying device is floated, and the thrust of the forward propeller is also used to move the bottom net of the aquaculture cage to the outer bottom surface. A cleaning tool is applied to the upper end of the net, and a rotating brush scrapes out shellfish and algae that have adhered to the net, passing through the hollow body and storing them in a collecting basket at the lower end. The control mechanism of the electricity generating equipment is operated to drive the propeller-type propulsion machine for left and right movement, and the cleaning device is moved left and right to clean and remove shellfish and algae that have adhered to the entire surface of the bottom net and store them in the collection basket.

[0006]

[Examples] Examples of the present invention will be described below. Vertical 1 made of hard vinyl chloride plate with a thickness of 3 mm as shown in Figure 1.
A hollow body 1 of 3 cm in width, 13 cm in width, and 26 cm in length. Three rows of polyester monofilament with a diameter of 2 mm and a length of 15 mm are arranged horizontally on the front end surface and below in opposite directions from both ends of a shaft with a diameter of 20 mm toward the center of the shaft. A cleaning tool 8 consisting of a pair of rotating brushes, which are spirally flocked and driven in opposite directions by a 6V DC motor, is mounted on the front half of the upper surface of the hollow body 1, and is made of a hard vinyl chloride plate with a thickness of 3 mm and has a volume of 30 mm.
0 ml air tank 2, a 600 ml capacity air/water tank 3 made of 3 mm thick hard vinyl chloride plate on the rear half, and a 600 ml capacity air/water tank 3 made of 3 mm thick hard vinyl chloride plate on the lower half of the hollow body 1. A tank 4 for both air and water use is assembled, with a weight of 0.3 kg on the upper surface in the middle of the hollow body 1 and a weight of 0.3 kg on the lower surface.
Brass weights 5 weighing 7 kg and 0.5 kg on each side, weighing a total of 2 kg, are attached, and forward propeller type propulsion machines 6 driven by 6V DC motors are mounted on both sides of the hollow fuselage 1 at both ends in the width direction of the center of the lower surface of the hollow fuselage. We prototyped an experimental purifying device equipped with a propeller-type propulsion device 7 for left and right movement, which had a propeller on the side and was driven by a 6V DC motor.We installed a net on the side of an aquaculture cage with a side of 2 m and a depth of 1.5 m and within the visible range. As a result of an experiment in which a small boat was floated in a place where the cleanliness of the fish cage could be observed and the cleaning device was operated to clean shellfish and algae attached to the side and bottom nets of the aquaculture cage, it was found that the water passing through the nets was normal. We have confirmed that the present invention is possible, and we are proceeding with scale-up to create this device. The experimental purifying device is operated by controlling the status of the purifying device and the cleaning status through conductors connected to each motor of the purifying device by operating a switch from a storage battery mounted on a small boat floating on the side of the aquaculture cage. A small compressor mounted on the boat is used to switch between sinking, floating, horizontal, and upright positions of the purifier, and air is supplied to the air/water tank 3 or 4 through a hose led from the air pipe tip 9 of the purifier. The water contained in the air/water tank 3 or 4 is discharged using air pressure from a small compressor.A small pump mounted on the boat is used to pump water through a hose led from the water pipe end 10 of the purifier. Air/water tank 3 or 4
The above three operations were performed in appropriate combinations depending on the state of the cleaning device and the cleaning situation.

[0007]

[Effects of the Invention] The present invention (a) eliminates the work of attaching and detaching the purifier to the culture cage frame, etc., and can be expected to reduce labor and work time. (b) A small number of people can remotely control multiple cleaning devices to clean the nets of aquaculture cages. (c) Since the net is cleaned from the outside, the fish bodies in the culture cage are not damaged, the fish are not stimulated and stressed, and the growth of the fish can be maintained normally. (d) The bottom screen can be cleaned. (e) Since the shellfish and algae that have been cleaned and removed are collected, there is no contamination of the underwater or underwater environment. Furthermore, the cleaning device of the present invention can easily clean not only aquaculture cages but also fishing nets laid in water.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an experimental cleaning device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a left side view of FIG. 2;

[Explanation of symbols]

Regarding Figures 1, 2 and 3, 1 Hollow fuselage 2 Air tank 3, 4 Air/water tank 5 Weight 6 Forward propeller type propulsion machine 7 Propeller type propulsion machine for left and right movement 8 Cleaning tools 9 Air pipe tip 10 Water pipe tip

Claims (1)

[Claims] Claim 1: An air tank on the top surface of the hollow body, a dual-use tank for air and water with an air pipe tip and a water pipe tip on the top and bottom surfaces, a cleaning tool and an underwater camera on the front end surface, and a cleaning tool and an underwater camera collected on the rear end surface. The cage is equipped with a propeller-type propulsion device for forward movement on both sides, a propeller-type propulsion device for left and right movement at right angles to the hollow body on the bottom, and a weight in the center of the hollow body, and can be controlled remotely to move the aquaculture cage net in a remote location. A remote-controlled cleaning device for aquaculture nets, which is characterized by cleaning, removing and collecting shellfish and algae attached to the nets.