JPS5836875Y2 - fish pump - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a fish pump.

The fishing method in which fish pumps are often used is mainly purse seine fishing, and the types of fish targeted by this fishing method are sardines, horse mackerel, mackerel, capelin, herring, Atka mackerel, bonito,
It covers a wide range of species, including tuna.

The body length of these fish ranges from a few small to several tens of Crr1, and in addition, there are a wide variety of ways to use the target fish.

That is, there are some fish species that are processed and used as processed fish without any physical shape, and there are other fish species, such as those used for sashimi, where even the slightest scratches on the fish body cannot be ignored.

Furthermore, the amount of fish entering the net is not constant and may range from less than 1 ton to several hundred tons.

In cases where the condition of the target fish changes widely in this way, in order to efficiently pump the captured fish, it is necessary to equip the fish pump suitable for each species of fish and select and use these. It is not economical to install many fish pumps on board the mother ship.

The present invention was developed in view of the above circumstances, and by changing the internal structure of one pump with a simple configuration and means, it is possible to pump up a large number of fish species, thereby improving fish lifting efficiency and economical efficiency. The aim is to improve the

To explain the details of the embodiment with reference to the drawings, 1 is a case body, 2 is a hydraulic motor installed at the center of the upper surface of the case body 1, and a rotary blade wheel 4 is provided on an output shaft 3 of this hydraulic motor 2.

The rotary impeller 4 includes two upper and lower discs 5 and 6, and both discs 5.
, 6, and is constituted by a plurality of impeller blades 7 arranged equally.

As is clear from FIGS. 2 to 4, a stepped circular collar 8 is integrally provided on the upper part of the impeller blade 7.
A stepped portion on the lower side of the circular collar 8 is rotatably fitted into a window 9 formed in the upper disc 5.

Two opposing holes 10 are provided on the outer circumference of the circular collar 8, and these holes 10 fit into a plurality of positioning screw holes 11 formed on the upper surface of the upper disk 5, and the holes 10 are inserted into the screw holes 11.
The blade angle of the impeller blades 7 can be changed and adjusted by a screw 12 screwed into the impeller blade 7.

Also, at the center of the lower part of this impeller blade 7 is a support shaft 13.
is formed integrally with the through hole 1 formed in the lower disk 6.
4, which is rotatably inserted into the hole.

5 is a closing plate 15 that closes the window 9 of the upper disk 5 from above and is fixed with a screw 12 using the screw hole 11; A closing plate that closes from the bottom and is fixed to a screw hole 17 provided on the back side of the lower disk 6 with a screw 18, which equalizes the total weight of both opening plates 15 and 16 and the weight of the impeller blade 7. By doing so, forward rotation of the rotary impeller 4 after the impeller blade 7 is removed is prevented.

The ceiling plate 1''El and the bottom plate r of the case body 1 are provided with a window 19 through which the impeller blades can be inserted and a window 20 for entering and exiting the closing plate 16, facing each other vertically, and each window 19, 20 has a sealing lid. 21. 22 is provided so that it can be opened and closed.

Note that this sealing lid may be of a sliding type.

In the figure, 23 is a suction port formed at the center of the bottom surface of the case body 1;
Reference numeral 24 denotes a discharge port, and although not particularly shown, the lower end of a flexible hose connected to the ship is connected to the discharge port 24.

In the figure, 25 is a washer for fixing the lower disk 6 to the impeller blade 7, and the two are connected and fixed by bolts 26.

Next, to explain the operation, when adjusting the angle of the impeller blade 7 to increase or decrease the suction lifting blade, open the airtight cover 21 provided on the ceiling plate 1' of the case body 1,
1 is removed, the impeller blades 7 are rotated and positioned at a required angle, each impeller blade 7 is fixed to the disk 5 one after another with the screw 12, and then the airtight lid 21 is closed.

Further, when removing the impeller blade 7, the impeller blade 7 can be taken out by opening the airtight lid 21 of the case body 1 and removing two screws 12.

Next, a closing plate 15 is fitted into the window 9 of the upper disk 5, and then fixed to the disk 5 with screws 12, and the sealing lid 21 is closed.

Next, open the sealing lid 22 at the bottom and open the closing plate 1 from the bottom of the disk 6.
6 is adapted to close the through hole 14, and after this closing plate 16 is fixed with the screw 18 and the screw hole 17, the airtight lid 22 is closed.

Since the present invention is constructed as described above, by one drive of the POSP, fish are sucked in together with seawater from the suction port, passed through the discharge port, and the flexible hose, and are lifted onto the ship and recovered, as well as the species of fish. The angle of the impeller flade can be changed depending on the size of the fish to adjust the lifting force for more efficient fish recovery.In the case of large fish, the impeller flade can be removed at regular intervals to widen the gap between the impeller blades and the fish can be collected. Recovery can be achieved without damage.

In this way, the present invention allows adjustment of the impeller blade angle.
This is a very useful device in terms of work efficiency and economy, as it allows suction and recovery of many types of fish with one unit by thinning out the impeller blades.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view, Fig. 2 is a partially cutaway front view of the main part of the same, Fig. 3 is a partially cutaway plan view, Fig. 4 is a partially cutaway plan view of the main part of the same, and Fig. 5 is a partially cutaway front view of the main part of the same. The figure is a longitudinal sectional front view of the main parts after the impeller blades are removed. DESCRIPTION OF SYMBOLS 1... Case body, 2... Hydraulic motor, 3... Output shaft, 4... Rotor wheel, 5, 6... Disc, 7...
Impeller blade, 8... circular tsuba, 9... window, 1
0... Hole, 11... Threaded hole, 12... Screw, 13
... Support shaft, 14... Through hole, 15, . 16... Closure plate, 17... Screw hole, 18... Screw, 19.20...
・Window, 21.22...Closing plate, 23...Suction port, 2
4...Exhaust port.

Claims (1)

[Scope of utility model registration request] In a pump in which a rotary impeller is mounted on a shaft within a case body, fish bodies are sucked together with seawater from the center of one side of the case body, and the fish bodies are fed and collected from the other side of the case body via a flexible hose onto a ship. A fish pump characterized in that the blade angle of the impeller blades constituting the rotary impeller is adjustable and the impeller blades are detachable.