JPH0622195U - Fish tank for ships - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To provide a fish tank for ships that does not overflow seawater etc. from the fish tank even when the ship is traveling at high speed. [Composition] The fish tank for ships is a so-called cage for fish that is installed in the cabin of a leisure boat. A water tank, a lid for opening and closing the fish inlet of the water retention tank, a water supply pipe 4 communicating with the seawater intake provided at the bottom of the leisure boat for supplying seawater into the water retention tank, and seawater inside the water retention tank The drainage pipe is connected to a seawater discharge port provided at the bottom of the leisure boat, and the water supply pipe 4 is connected to the inner diameter portion 4b of the upper end 4a protruding into the water retention tank. A water shutoff valve 6 that opens and closes according to the flow rate of seawater flowing into the inside of the water tank 4 is attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fish tank for ships, which is provided in fishing boats, fishing boats, leisure boats, and the like, and stores and retains the caught fish.

[0002]

[Prior art]

 Depending on their use, ships are categorized into commercial ships as general means of transportation and warships for military purposes.Furthermore, commercial ships can be broadly divided into passenger ships for carrying passengers, cargo ships for carrying cargo, and fishing boats for catching fish. There are work boats that work in the bay and at sea, and leisure boats such as fishing boats, cruisers, motor boats, and yachts. Except for special ones, ships use screw propellers for propelling equipment, and diesel engines, steam turbines, gas turbines, etc. are usually used as propeller drive engines, but for small boats, etc. A gasoline engine outboard motor is used. Steel is generally used as a structural material for ships, but reinforced plastic (FRP) is often used for small ships. The basic structure of a ship is formed by shaping the outer shape of the ship by the bottom of the ship, the outer plate, and the deck, and partitioning it by several partition walls. There are two or three decks depending on the purpose of the ship, and the upper deck has a superstructure and deck room, and a steering room, a living area, and a warehouse are assigned to the inside. In addition, some fishing boats, fishing boats, and some leisure boats are equipped with a fish tank for vessels that acts as a cage on the deck so that they can return to the port while keeping their fish alive.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional fish tank for ships, for example, the seawater of the sea is directly collected and stored in the tank, so when the ship is moored at the port or at the sea, the fish tank and the seawater of the sea supply water. The fish tank will be filled with seawater by communicating through the pipe and drainage pipe. On the other hand, when the vessel starts sailing, the propulsive force of the vessel supplies seawater to the water supply pipe, circulates inside the fish tank, and then drains to the sea from the drainage pipe. As a result, the seawater in the fish tank while the ship is navigating is constantly replaced with new seawater, and the internal environment of the fish tank becomes an optimal environment for fish and is effective for keeping the catch. However, even with such a convenient fish tank, when the speed of the vessel is increased and the vessel moves at high speed, such as recent fishing boats and leisure boats, a large amount of seawater that can be drained by the drainage pipe is supplied from the water supply pipe. It may cause it to flow into the aquarium and cause the seawater in the fish aquarium to overflow. If such a phenomenon occurs, there is a problem that the fish caught with great care may escape from the fish tank, or in the worst case, the seawater overflowing the fish tank may cause the sinking of the ship. It was Therefore, the present invention has been made to solve such a problem, and an object thereof is to provide a fish tank for ships that does not overflow seawater or the like from the fish tank even when the ship is traveling at high speed. .

[0004]

[Means for Solving the Problems]

 The present invention, which has been made to achieve the above object, is a live fish tank provided on a deck of a ship and configured to supply and drain seawater or the like from the sea by the navigation of the ship. In a fish tank for ships, which comprises a water supply pipe for supplying seawater, a water retention tank for storing seawater supplied by the water supply pipe, and a drainage pipe for discharging seawater of the water retention tank to the sea, etc. A fish tank for ships characterized in that a water shutoff valve is provided inside the water supply pipe to stop the flow inside the water supply pipe when the flow rate of seawater, etc. flowing inside the water supply pipe exceeds the discharge amount of the drainage pipe. Is the gist.

[0005]

[Action]

 According to the fish tank for ships of the present invention, the water tank is filled with the seawater or the like through the water supply pipe and the drain pipe while the ship is moored. When a ship travels at low speed, seawater is supplied from the water supply pipe to the water retention tank, circulates in the water retention tank, and then the same amount of seawater supplied from the water supply pipe is discharged to the sea etc. via the drainage pipe. To be done. At this time, when the ship is traveling at high speed and a large amount of seawater, etc. supplied from the water supply pipe to the water storage tank flows in exceeding the drainable water volume of the drainage pipe, the stop valve provided in the water supply pipe will close the water supply pipe. Shield and stop water supply.

[0006]

【Example】

 An embodiment of a fish tank for a ship according to the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway side view of a leisure boat equipped with a marine fish tank according to this embodiment, and FIG. 2 is a partially cutaway cross-sectional view of a water supply pipe near a water shutoff valve. As shown in FIG. 1, the marine fish tank of the present embodiment is a so-called cage for fish installed in the cabin 1a of the leisure boat 1. The marine fish tank uses the fish caught. Water tank 2 that is filled with seawater S for storage, a lid 3 that opens and closes the fish inlet 2a of the water tank 2, and seawater that is provided on the bottom 1b of the leisure boat 1 to supply seawater to the inside of the water tank 2. It is composed of a water supply pipe 4 communicating with the intake 1c, and a drain pipe 5 communicating with the seawater discharge port 1d provided on the bottom 1b of the leisure boat 1 for discharging the seawater inside the water retention tank 2 into the sea. As shown in FIG. 2, the water supply pipe 4 has an inner diameter portion 4b of an upper end portion 4a protruding into the water retention tank 2 and a water shutoff valve 6 which is opened and closed depending on the flow rate of seawater flowing into the water supply pipe 4. There is. The water stop valve 6 is formed of a stainless plate having a shape that substantially matches the cross-sectional area of the inner diameter portion 4b of the water supply pipe 4, and is rotatable on the wall surface of the inner diameter portion 4b of the water supply pipe 4 via a stay 7. It is installed. Further, on the inner wall surface of the water supply pipe 4, there are provided a stopper 8 for stopping the rotation of the water shutoff valve 6 when the water shutoff valve 6 is turned upward by the flow rate of seawater, and an assist pin 9 for holding the water shutoff valve 6 in a lowered state. ing. In addition, when the flow rate of the water supply pipe 4 is a normal flow, that is, when it is almost equal to the amount that can be discharged from the discharge pipe 5, the water stop valve 6 does not rotate upward due to its own weight. When the flow rate of the water supply pipe 4 is abnormally high, that is, when the flow rate is much higher than that which can be discharged from the discharge pipe 5, seawater flows into the lower surface of the water stop valve 6 and the water stop valve 6 , Against which the water supply pipe 4 is closed. Therefore, the weight of the water shutoff valve 6 is changed according to the speed of the ship equipped with the fish tank for ships of the present embodiment and the inner diameters of the water supply pipe 4 and the drain pipe 5.

Next, the operation and effect of this embodiment having the above configuration will be described. When a ship equipped with the fish tank for ships of the present embodiment is stopped at a harbor or at sea, the inside of the water holding tank 2 is at the same water level as the water level of the boat 1 as shown in FIG. On the other hand, when the ship 1 is navigated, seawater is supplied to the water supply pipe 4 or the water retention tank 2 by the propulsive force of the ship, circulates through the water retention tank, and then is discharged into the sea from the drain pipe 5. At this time, the water supply pipe The water shutoff valve 6 of 4 operates according to the speed of the ship. That is, when the ship is traveling at a low speed and the flow rate of the water supply pipe 4 and the flow rate of the drainage pipe 5 are substantially equal to each other, the weight of the water shutoff valve does not exceed the seawater flow rate and does not rotate. . However, when the speed of the ship increases and the flow rate of the water supply pipe 4 increases more than the flow rate of the drainage pipe 5, the flow of seawater flowing through the water supply pipe 4 exceeds the weight of the water stop valve 6 and the water stop valve 6 , And consequently the water supply pipe 4 is closed. By this action, even if a large amount of seawater flows into the water supply pipe 4 while the ship 1 is traveling at high speed, the water stop valve 6 provided in the water supply pipe 4 automatically closes the water supply pipe 4, so that the water supply pipe 4 The seawater that flows into the water will not enter the water storage tank 2. Therefore, it is possible to prevent the prey captured by the overflow of seawater from the water tank 2 from jumping out and from flooding the cabin 1a of the ship 1. In the present embodiment, the case where the ship 1 is floated on the sea has been described, but the present invention is not limited to this, and similar effects can be obtained with rivers, lakes, swamps, and the like.

[0008]

[Effect of device]

 As described in detail above, the marine fish tank according to the present invention comprises a water supply pipe for supplying seawater, etc. from the sea, a water holding tank for storing seawater supplied by the water supply pipe, and the seawater, etc. of the water holding tank for draining to the sea, etc. In a fish tank for ships, which is composed of a drainage pipe and a drainage pipe, the flow of water inside the water supply pipe is stopped when the flow rate of seawater flowing inside the water supply pipe exceeds the discharge amount of the drainage pipe. By providing the valve, even if a ship travels at high speed and a large amount of seawater flows into the water supply pipe, the water shutoff valve provided in the water supply pipe automatically closes the water supply pipe, so it flows into the water supply pipe. Seawater never enters the water tank. Therefore, it is possible to prevent seawater from overflowing the water storage tank.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a leisure boat showing an embodiment of a marine fish tank according to the present invention.

FIG. 2 is a partially cutaway sectional view showing the inside of the upper end of the water supply pipe of the fish tank for ships of the present embodiment.

[Explanation of symbols] 1 leisure boat 1a cabin 1b ship bottom 1c seawater intake 1d seawater discharge port 2 water retention tank 2a fish inlet 3 lid 4 water supply pipe 4a upper end 4b inner diameter 5 drainage pipe 6 water stop valve 7 stay 8 stopper 9 Assist Pin S Seawater

Claims (1)

[Scope of utility model registration request] 1. A live fish tank provided on a deck of a ship and configured to supply and drain seawater and the like from the sea and the like by navigation of the ship, and a water supply pipe that supplies seawater and the like from the sea and the like. In a marine fish tank comprising a water retention tank for storing seawater, etc. supplied by the water supply pipe, and a drain pipe for draining seawater, etc. of the water retention tank to the sea, etc., the inside of the water supply pipe is placed inside the water supply pipe. A marine fish tank provided with a water shutoff valve for stopping the flow inside the water supply pipe when the flow rate of seawater or the like flowing in exceeds the discharge amount of the drainage pipe.