JPS5812167B2 - Gyorouyoyoyogiyosouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fish lifting device for fishing that is capable of efficiently lifting fish caught in a net at a fishing ground etc. into a fish tank in a live fish state, and in particular has a low lifting head and a large capacity. This invention relates to a fish lifting device in which a fish collecting pump is installed underwater or on the water surface.

A fish lifting device that sucks up fish caught in a net at a fishing ground along with seawater by a fish lifting device installed on a fishing boat, passes the fish through a separator to separate the fish from the seawater, and transfers only the fish to a fish tank on a transport boat. Recently, it has been widely used in various fields due to its extremely useful advantages in streamlining and labor saving in fishing operations.

However, in order to transport fish using this type of fish lifting device,
Normally, the net is tightened and the suction hose of the fish pump is put into the seawater inside the net to lift the fish. This makes the netting work described above difficult, and fish often have to be unloaded before the netting can be done properly. The fish die instantly and settle to the bottom of the net, causing inconveniences such as the net breaking due to the load and losing the harvested fish.

Originally, when frying fish, it is essential to fry the fish while it is still alive and then shock the fish to death in order to maintain freshness and maintain value.

For this purpose, a device that can lift a large amount of fish in a short period of time is required, but the fish in the net are in a very dilute state, that is, the volume ratio of fish to seawater is about 10% fish and seawater 90%, and the density of the fish is very low. It is inevitable that the fish must be lifted in a small state, resulting in extremely low fishing efficiency.

Therefore, in order to improve efficiency, it is necessary to use a large-capacity, dog-horsepower fish pump. Currently, this method is not widely used due to lack of capacity and the large size of the equipment, and the inefficient fish-raising work still relies on manual labor.

Eliminate this drawback! In order to do so, the present inventor has developed a fish lifting device that efficiently lifts fish sucked up from nets with low black density by combining a general-purpose fish collecting pump with a low lifting head and a large capacity and a fish collecting pump with a relatively small capacity. However, this device had a large-capacity fish-collecting pump installed on the boat and collected fish by sucking up a huge amount of seawater onto the boat, so the suction hose connected to the inlet of the fish-collecting pump was In addition to requiring a hose that is extremely thick and the weight of the hose itself to be quite heavy, a considerable amount of water passes through the hose, so it takes an extremely large amount of force to suspend the hose and water. At the same time, there are many problems in terms of safety as the work is often done on a shaking ship.Furthermore, the lift of the fish collection pump is relatively high in order to pump the seawater onto the ship, which reduces the performance of this device. It was not possible to improve the fish yield per horsepower, which is the most important factor in determining the amount of fish, to a level that is sufficiently satisfactory.

Therefore, the inventor of the present invention made repeated improvements in order to somehow increase the amount of fish taken up. As a result, by installing the fish collecting pump on the sea or in the sea, the lift height of the fish collecting pump could be significantly lowered, thereby increasing the amount of fish absorbed. We have succeeded in developing a fish lifting device that can dramatically increase the amount of fish lifted and does not require hanging large amounts of water or heavy hoses.

Therefore, an important object of the present invention is to provide a fish lifting device that can lift a large amount of fish per horsepower and can be simply and easily suspended with a light force.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

The fish lifting device 1 shown in FIG.
A separator 7 that divides the chamber 2 in the casing 4 into a water chamber 5 and a fish collection chamber 6, a fish collection pump 9 whose water inlet 8 opens into the water chamber 5, and a fish pump connected to the fish collection chamber 6. It is equipped with a suction hose 10.

The separator 7 is a member that allows water to freely pass through but does not allow fish to pass through, such as a wire mesh, and separates the fish sucked and collected into the chamber 2 from the fish-eye inlet 3 from the water sucked into the fish collection pump 9. As such, the suction port 8 of the fish collection pump 9 is disposed within the chamber 2 between the fisheye inlet 3 and the fisheye inlet 3.

The fish collection pump 9 can be any type of pump with a low head and large capacity, such as a centrifugal pump or an axial flow pump.The fish collection pump 9 shown in FIG. is fixed to the casing 4.

By the way, it is best to use the hydraulic motor 11 as the drive source for the fish collecting pump in terms of watertight structure and handling.

The suction hose 10 has one end connected to the fish collecting chamber 6 so that the fish collected in the fish collecting chamber 6 can be sucked in and transferred to a predetermined location.
Then, the other end is connected to a fish pump that can suck in fish and water together.

As shown in FIG. 1, a fish lifting device 1 having a structure that sucks in fish from below is effectively used for lifting mid-water fish.

The fish lifting device 12 shown in FIG.
4, and a fish-eye inlet 15 is opened above or on the side to discharge the sucked water downward, and this structure is most suitable for raising surface fish.

Furthermore, if a submersible adult fish pump 16 is attached to the casing 14 as shown in FIG. 2, the fish can be transported to a predetermined location using this fish pump 16.

In this case, the hydraulic motor 17 is also preferable for driving the fish pump 16.

The fish lifting device 18 for fishing shown in FIG. 3 has a downward fish-eye inlet 20 opened at the bottom of a casing 19, and a fish pump 21 fixed to the casing 19 sucks in and transports fish from a fish collection chamber 22. , the water in the water chamber 23 is discharged to the side by a fish collection pump 24, and this structure is also good for catching mid-water fish.

The fish-lifting device for fishing shown in FIG. 4 has a fish-lifting device 26 itself installed on the sea, an adult fish hose 25 extending downward connected to the fisheye inlet, and the adult fish hose 25 used to reach a relatively deep place. It is configured to inhale and lift fish, and if the entire fishing fish lifting device 26 is not submerged in the sea, it is possible to lift fish no matter how deep by simply extending the adult fish hose. In addition, the adult fish hose can be easily moved to areas with a high concentration of fish.

However, in this case, the closer the main body of the fishing fish lifting device 26 is to the water surface, the lower the lifting height of the fish collection pump 27 can be, and by submerging part or all of the device under the water surface, the lifting force of the device can be reduced. , it is desirable to have it as close to the sea surface as possible.

In addition, as shown in FIGS. 4 and 5, a fish lifting device 26 for fishing is provided.
．． If water is discharged outside the nets 31 and 32 by connecting the water discharge ports 29 and 30, the water sucked in and discharged by the fish collection pump will be circulated within the nets 31 and 32. This allows for more effective fish collection.

As described above, the present invention is configured such that a fish collection pump that sucks a large amount of water is installed in the sea or on the sea, and a fish pump connected to this fish collection pump transports fish to a predetermined location. The head of the fish collection pump that collects the water can be significantly lowered, especially when the fish collection pump is installed in the sea, and the head can be lowered to almost zero due to the head loss due only to the resistance inside the pipe.
The amount of water absorbed per horsepower of the pump can be considerably increased, and the amount of fish lifted per unit time, which is particularly required for a fish lifting device, can be dramatically increased.

As mentioned earlier, the larger the amount of fish that can be hauled, the more efficient the fishing will be without killing the fish in the net. It is also possible to collect them in one place and capture them using a fish lifting device.

In addition, in order to collect fish on the sea or in the sea and transport the fish in a state of high black density, there is no need to hang thick, heavy hoses weighing several tons, and large quantities of fish can be transported using thin, light hoses that are easy to operate. This makes handling of the device extremely simple and easy, and is extremely effective in improving work efficiency and work safety.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 to 3 are cross-sectional views of a fish lifting device for fishing according to an embodiment of the present invention, and FIGS. 4 and 5 are sectional views of a fish lifting device for fishing according to the present invention. FIG. 3 is a side view showing a sample example of a usage state. 1...Fish lifting device for fishing, 2...Chamber, 3...Fisheye inlet, 4...Casing, 5...Water Room, 6...Fish gathering room, 7.
...Separator, 8...Water inlet, 9...
...Fish collection pump, 10...Suction hose,
11...Hydraulic motor, 12...Fish lifting device, 13...Fish collection pump, 14...Casing, 15...Fisheye inlet , 16...
・Fish pump, 17...Hydraulic motor, 18...
...Fishing equipment for fishing, 19...Casing,
20...Fisheye inlet, 21...Fish pump, 22...Fish collecting room, 23...Water chamber, 2
4... Fish collecting pump, 25... Adult fish hose, 26... Fish lifting device, 27... Fish collecting pump, 28... Fish lifting Equipment, 29.30...
...Water hose, 31...Net, 32...
·network.

Claims (1)

[Claims] 1 A chamber that is separated into an ice chamber and a fish collection chamber by a separator that allows water to pass through but does not allow fish to pass through, and in which the fish collection chamber is opened and the opening extends below the water surface, and the water chamber of this chamber has its own suction The chamber is equipped with a fish collection pump that is connected to the side and drains the sucked water again, and a fish pump whose suction side is connected to the fish collection chamber of the chamber. A fish lifting device configured to collect fish and transport the fish to a predetermined location via a fish transfer pipe connected to a fish pump, characterized in that the fish collecting pump is installed in or on the sea. Fish lifting equipment for fishing.