JP4562431B2 - Bilge discharger - Google Patents

Description

  The present invention relates to an apparatus for discharging bilge such as rainwater and seawater accumulated on a ship bottom to the outside of a hull.

  In general, a ship is equipped with an electric bilge pump for discharging the bilge to the outside of the hull because bilge such as seawater and rainwater accumulates at the bottom of the ship during voyage or anchorage. Alternatively, a small vessel such as a boat often does not have an expensive electric bilge pump. In such a case, the bilge is discharged by hand.

  Patent Document 1 below describes a bilge pump that does not require a power source and drains water using natural forces such as waves and rolling of ships. According to this, when a wave or a ship rolls, the pressure of the air chamber in the main body changes due to a difference in level between the seawater surface entering the main body and the seawater surface around the main body, and the main body and the main body. When the main body suction hole opens and closes due to the vertical displacement with the reciprocator provided in the body, and the air pressure in the main body decreases, the bilge in the hull passes through the drainage pipe and enters the main body from the suction hole. When the air is sucked and the air pressure in the main body is increased, the air in the main body is exhausted to the outside through the exhaust hole of the main body.

Japanese Patent Laid-Open No. 06-294400

  However, in the above document, the suction force required to discharge the bilge is generated by the relative displacement in the vertical direction between the main body and the reciprocator provided on the main body. For this reason, when the wave is gentle, the relative displacement between the main body and the reciprocator does not occur, and the pump may not be used when the bilge needs to be discharged. Furthermore, during the voyage, a large water pressure opposite to the propulsive force of the ship is applied to the pump body, so the pump body must be lifted on the ship, and the trouble of lowering the pump body to the water surface every time the bilge is discharged. It also takes.

  Moreover, in a ship that is not equipped with an electric bilge pump, such as a small ship for personal use, the bilge must be discharged by hand, which is a heavy labor.

  Furthermore, in the case where an electric bilge pump is provided and the leaked fuel is mixed in the bilge, the use of the bilge pump may ignite the power source or the motor and cause a fire.

  The present invention has been made in view of the above circumstances, and provides a bilge discharging apparatus having a simple configuration capable of reliably discharging bilge such as rainwater and seawater accumulated on the bottom of a ship regardless of wave conditions. That is.

The present invention is a bilge discharge device for discharging bilge accumulated on the bottom of a ship to the outside of the hull,
The pipe has a pipe that passes through a position higher than the inundation line and communicates with the outside of the hull at a position lower than the inundation line. The other end of the intake pipe, one end of which is the bilge inlet, and one end of the bilge Constructed by communicating with the other end of the discharge pipe fixed to the hull as a discharge port,
The hull has a fluid storage tank capable of storing fluid at least up to the height of the floodline, and one end of the discharge pipe is fixed to the hull in the fluid storage tank,
The other end of the suction pipe is provided with a suction valve that opens only on the side opposite to the suction port, and the other end of the discharge pipe is provided with a discharge valve that opens only on the discharge port side,
When the hull propels with one end of the suction pipe immersed in the bilge, a negative pressure is generated in the pipe from one end of the discharge pipe, so that the bilge is sucked into the suction pipe from the suction port. A valve and a discharge valve are inserted into the discharge pipe and discharged from the discharge port to the outside of the hull.

In a specific aspect of the present invention, a pump is provided that communicates with the other end of the suction pipe to suck up the bilge. The pipe line can be fixed to the hull with the discharge port facing the stern side. The pipe has a diameter on the discharge port side larger than a diameter on the suction port side .

Alternatively, the discharge port is fixed in a detachable state to the hull. Specifically, one end of the discharge pipe is provided with a spiral groove on its inner or outer peripheral surface, and can be fixed to the hull by a connecting member having a spiral groove that meshes with the spiral groove.

According to the bilge discharging apparatus of the present invention, the pipe that passes through the position higher than the inundation line and communicates with the outside of the hull at the position lower than the inundation line has one end of the suction pipe whose one end serves as an inlet of the bilge, and one end Is configured to communicate with the other end of a discharge pipe fixed to the hull as a discharge port of the bilge, and the other end of the suction pipe is provided with a suction valve that opens only on the side opposite to the suction port. In addition, since the other end of the discharge pipe is provided with a discharge valve that opens only to the discharge port side, when the hull is propelled with one end of the suction pipe immersed in the bilge, A negative pressure is generated in the pipe line from one end side, and the bilge is sucked into the suction pipe from the suction port, enters the discharge pipe through the suction valve and the discharge valve, and is discharged from the discharge port to the outside of the hull. Since bilge discharge can be realized with such a simple configuration, a low-cost bilge discharge apparatus is provided without cost.
Furthermore, by fixing one end of the pipe line to the hull in a fluid storage tank capable of storing fluid at least up to the height of the inundation line, even if it is submerged from the fixed part of the pipe line, it is stored in the fluid storage tank. Therefore, it is possible to prevent water from entering the hull. Moreover, if a water intake is provided in this fluid storage tank, it can be used as a sashimi, and the water in a skein can be circulated by removing a bilge discharge device. Alternatively, it is also possible to close the water intake of the hull already provided with ginger and attach a bilge discharge device to the drain.

  In addition, by providing a pump that sucks up bilge in the pipeline, even if the bilge cannot be sucked up only by the negative pressure generated in the pipeline due to the propulsion of the hull, the negative pressure and the pump are operated in the pipeline. The bilge can be easily sucked up by the synergistic effect with the negative pressure generated. In this case, once the bilge flows out of the pipeline, the bilge flows without interruption in the pipeline as long as the hull is propelled and negative pressure continues to be generated with the other end of the pipeline immersed in the bilge. be able to. For this reason, the said pump may be suitably operated during bilge discharge | emission, and can also be utilized only as a trigger of bilge suction.

  By fixing the pipe line to the hull with one end facing the stern side, a negative pressure can be generated in the pipe line during forward movement with the largest propulsive force, and the bilge suction force can be further increased. Can be bigger.

  In addition, one end of the pipe is made larger in diameter than the other end side, and the one end side is fixed to the hull, so that a larger negative pressure is generated at the one end side fixed to the hull when propelling the hull. As a result, the bilge's suction force is also increased.

  Furthermore, since one end of the conduit can be fixed to the hull in a detachable state, the bilge discharge device can be carried, and if a hole for attachment is provided in the bottom of the vessel, it can be attached to any hull. Bilge discharge work can be done. Specifically, if a spiral groove is provided on the inner peripheral surface or outer peripheral surface of one end of the conduit and is fixed to the hull by a connecting member having a spiral groove that meshes with this, the bilge discharge device can be easily attached and detached. become.

  FIG. 1 shows a hull 2 provided with a bilge discharging apparatus 1 of the first embodiment.

  This bilge discharge device 1 is a device for discharging bilge 3 such as rainwater and seawater collected on the bottom of the ship to the outside of the hull 2, and the submerged line 4 is always in a state where the hull 2 floats in water (for example, seawater). The pipe 5 has one end fixed to the hull 2 so as to communicate with the outside of the hull 2 through a higher position and lower than the floodline 4. When the hull 2 is advanced with the other end of the pipe line 5 immersed in the bilge 3, negative pressure is generated in the pipe line 5 from one end side of the pipe line 5 fixed to the hull 2. It is sucked up from the other end side of the road 5, passes through the inside of the pipe line 5 and is discharged out of the hull 2.

  Specifically, the pipe line 5 has the following configuration.

A suction pipe 7 whose one end is a suction port 6 of the bilge 3,
A discharge pipe 8 with one end fixed to the ship bottom;
It has a discharge port 9 for discharging the bilge 3 to the outside of the hull 2, and with the discharge port 9 facing the stern side, a connecting member 11 for connecting one end side of the discharge pipe 8 and the bottom of the ship, and an upper part of the suction pipe 7 And a pump chamber 12 used when sucking up the bilge 3 from the suction port 6 of the suction pipe 7.

  In the above configuration, the discharge pipe 8 and the connecting member 11 are detachably fixed by bolting in a state where the flange is attached. Further, one end of the discharge pipe 8 fixed to the ship bottom and the connecting member 11 are made larger in diameter than the suction port 6 of the suction pipe 7, and when the hull 2 moves forward, a larger negative pressure is generated from the discharge port 9 side. A pressure is generated, so that the suction force of the bilge 3 on the suction port 6 side of the suction pipe 7 can be further increased.

  The suction pipe 7 and the discharge pipe 8 constituting the pipe line 5 may be made of any material such as a plastic material such as metal or an elastic material such as resin. Since the negative pressure generated in the passage 5 is very large, when the suction pipe 7 and the discharge pipe 8 are made of an elastic material, it is preferable to use one that is as hard as possible.

  Here, when the hull 1 is floated on the sea, as shown in the figure, seawater enters from the discharge port 9 and reaches the water line (the same height as the sea surface) 4 at the maximum. On the other hand, when the suction port 6 is immersed in the bilge 3, the bilge 3 enters the suction pipe 7 from the suction port 6 and reaches the maximum level with the water surface of the surrounding bilge 3. That is, since a part of the pipe line 5 always passes through a position higher than the inundation line 4, the seawater that has entered the discharge pipe 8 from the discharge port 9 does not flow to the suction pipe 7 side and is safe. .

  The pump chamber 12 fixed to the upper portion of the suction pipe 7 is made of a material that can be easily deformed when grasped, and a screw-in type exhaust cap 14 is attached to the upper end portion. The pump chamber 12 can be ventilated to the suction pipe 7 side when the exhaust cap 14 is tightened, and can also vent from the attachment position of the exhaust cap 14 when the exhaust cap 14 is loosened. .

  In addition, the suction pipe 7 and the discharge pipe 8 are provided with valves inside thereof, so that the ventilation direction in the pipe line 5 generated when the pump chamber 12 is grasped by hand can be appropriately controlled. . Specifically, the suction pipe 7 is provided with a suction valve 16 which is locked by a protrusion 15 and can be rotated only on the pump chamber 12 side (upper side). A discharge valve 19 that is stopped and is rotatable only on the discharge port 9 side is provided. As a result, when the pump chamber 12 is grasped by hand with the exhaust cap 14 closed, the air in the pump chamber 12 flows downward, so that the suction valve 16 on the suction pipe 7 side is pressed and closed. The discharge valve 19 on the discharge pipe 8 side is pushed open by ventilation from the pump chamber 12, and air flows toward the discharge port 9. On the other hand, when the pump chamber 12 returns to the original shape, air flows toward the pump chamber 12, so that negative pressure is generated in the pipe 5, and the discharge valve 19 is drawn toward the pump chamber 12. At the same time, the suction valve 16 is lifted and opened to the pump chamber 12 side. At this time, if the suction port 6 of the suction pipe 7 is immersed in the bilge 3, the bilge 3 is sucked up from the suction port 6.

  Further, as described above, the discharge valve 19 provided in the discharge pipe 8 is locked to the projection 18 and can be turned to the discharge port 9 side. Therefore, when seawater reaches the suction pipe 7 by any chance. It can also function as a check valve.

  The bilge discharging apparatus 1 of the first embodiment can be used for a hull of a small ship such as a general ship that obtains a propulsive force using an engine (not shown) as a power source, or a rowing boat.

  FIG. 2 shows a state when the hull 2 moves forward. Based on this figure, operation | movement of the bilge discharge apparatus 1 of 1st Example is demonstrated.

  When the hull 2 moves forward, a large negative pressure is generated in the pipe line 5 from the discharge port 9 side of the connecting member 11, and suction force is generated in the suction port 6 on the suction tube 7 side. The bilge 3 is pulled up in the suction pipe 7 by the suction force and discharged from the discharge port 9 to the outside of the hull 2 (in the sea).

  On the other hand, if the bilge 3 cannot be pulled up only by the negative pressure generated in the pipeline 5 by the advance of the hull 2, or if it is difficult, the pump chamber 12 attempts to return to its original shape by grasping and compressing the pump chamber 12. The bilge 3 can be sucked up easily by the synergistic effect of the negative pressure generated at the time and the negative pressure generated by the forward movement of the hull 2. Also, once the bilge 3 flows out of the pipe 5, as long as the suction port 6 of the suction pipe 7 is immersed in the bilge 3 and the hull 2 moves forward and negative pressure continues to be generated, It can flow through the road 5 without interruption. That is, the pump chamber 12 may be appropriately operated during bilge discharge (for example, when the suction force becomes small), but can also be used only as a trigger for bilge suction as described above.

  Thus, by using the bilge discharge device 1 of the present invention, the bilge 3 accumulated on the bottom of the ship can be sucked and discharged out of the hull 2 simply by moving the hull 2 forward.

  Next, a second embodiment of the present invention will be described.

  FIG. 3 shows a hull 32 provided with a bilge discharging device 31 of the second embodiment.

  The basic configuration of the bilge discharge device 31 is the same as that of the first embodiment, but the discharge pipe 34 is composed of an upper pipe 35 and a lower pipe 36 that can be connected. Specifically, spiral grooves are provided on the outer peripheral surfaces of the end portions of the upper tube 35 and the lower tube 36, and grooves that mesh with the grooves are connected by a connecting tube 38 provided on the inner peripheral surface. Further, the discharge pipe 34 is also provided with a spiral groove on the outer peripheral surface on one end side thereof, and is fixed to the bottom of the hull 32 by a connecting member 40 having a groove meshing therewith. Forms the discharge port 41. The tightening operation of the discharge pipe 34 to the connecting member 40 and the tightening operation of the connecting pipe 38 can be performed manually.

  Further, the hull 32 in the second embodiment is made of resin or the like, and seawater can be stored at least up to the height of the inundation line 4 by providing the inundation prevention wall 42 formed integrally with the hull 32 in an annular shape. Ike 43 is formed. And the connection member 40 is fixed to the bottom part of this skein 43, and the one end of the discharge pipe 34 and the hull 32 can be connected now. As a result, even when the water is submerged from the gap between the discharge pipe 34 and the connecting member 40, the seawater does not reach the hull 32 because the seawater reaches only the height of the inundation line 4.

  Further, a connecting member 47 having a water intake port 45 that opens to the front of the hull 32 is fixed to the bottom of the skein 43, and the lid 48 can be attached by screwing from the inside of the skein 43. ing. That is, when discharging the bilge 3, first, the lid 48 is attached to the connecting member 47 having the water intake 45, and the discharge pipe 34 of the bilge discharging device 31 is screwed and connected to the connecting member 40 having the discharge port 41. That's fine. Moreover, when using as a normal sashimi, if the discharge port 41 and the water intake port 45 are open | released, seawater can be circulated. In addition, when using as a sardine, in order to prevent fish from escaping from the discharge port 41 or the water intake port 45, filters 49a and 49b can be attached to the connecting members 40 and 47, respectively.

  FIG. 4 shows a method for attaching the bilge discharging device 31 of the second embodiment to the hull 32.

  When attaching the bilge discharging device 31 to the hull 32, first, the lid 48 is attached to the connecting member 47 having the water intake 45. Specifically, a spiral groove 50 is provided on the lower outer peripheral surface of the lid 48 and meshes with the spiral groove 51 provided on the inner peripheral surface of the connecting member 47. Accordingly, the lid 48 can be held by hand and screwed into the connecting member 47 to be fixed.

  Next, the lower pipe 36 of the discharge pipe 34 is attached to the connecting member 40 fixed to the bottom of the bowl 43. As described above, the spiral groove 52 is provided on the outer peripheral surface on the one end side of the lower pipe 36, and meshes with the spiral groove 53 provided on the inner peripheral surface of the connecting member 40. . Accordingly, the lower tube 36 can be screwed and fixed to the connecting member 40 by rotating the lower tube 36 by hand.

  And the upper pipe | tube 35 and the lower pipe | tube 36 are connected. The lower pipe 36 is provided with a spiral groove 54 on the outer peripheral surface on the other end side, and is similarly provided with a spiral groove 55 on the outer peripheral surface of the end part of the upper tube 35. When connecting the two, first, the upper pipe 35 is screwed in by rotating the connecting pipe 38 provided with the spiral groove 56 engaged with the grooves 54 and 55 on the inner peripheral surface. Thereafter, the connecting pipe 38 is rotated in a state where the upper pipe 35 and the lower pipe 36 are brought together, and the groove 56 of the connecting pipe 38 and the groove 54 of the lower pipe 36 are engaged with each other. The upper tube 35 and the lower tube 36 are connected by the connecting tube 38 by positioning the position where the upper tube 35 and the lower tube 36 are joined to each other at the center of the connecting tube 38.

  Although the bilge discharge devices 1 and 31 of the embodiment have been described above, the pump chamber 12 is not limited to a manual type, and an electric pump can be used. In addition, when the pump is used only as a trigger for bilge suction, an inexpensive small pump can be employed.

  Further, in the embodiment, one end of the discharge pipes 8 and 34 is connected to the bottom of the ship, but the connection position is not limited to the bottom of the ship, and even if connected to a place that is always located below the inundation line on the stern side or side, the same applies. Bilge can be discharged. Further, it is possible to fix the discharge pipe 8 to the outside of the hull 2 so that one end of the discharge pipe 8 is always located below the sea surface. In this case, since the drain pipe 8 receives a large pressure from the seawater as the hull 2 moves forward, it is necessary to firmly fix the drain pipe 8 so as to withstand this pressure. Even if such an attachment method is adopted, the bilge discharging apparatus 1 can be freely carried and can be attached to an arbitrary hull to perform the bilge discharging operation.

The figure which shows the hull provided with the bilge discharging apparatus of 1st Example. The figure which shows a state when a hull propelled ahead. The figure which shows the hull provided with the bilge discharging apparatus of 2nd Example. The figure which shows the attachment method to the hull of the bilge discharging apparatus of 2nd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,31 ... Bilge discharge device, 2, 32 ... Hull, 3 ... Bilge, 4 ... Flood line, 5 ... Pipe line, 6 ... Suction port, 7 ... Suction pipe, 8, 34 ... Drain pipe, 9, 41 ... Drain Outlet, 11, 40, 47 ... connecting member, 12 ... pump chamber, 14 ... exhaust cap, 15, 18 ... projection, 16 ... suction valve, 19 ... discharge valve, 35 ... upper pipe, 36 ... lower pipe, 38 ... connection Pipe, 42 ... Infiltration prevention wall, 43 ... Ike, 45 ... Water intake, 48 ... Lid, 49a, 49b ... Filter, 50, 51, 52, 53, 54, 55, 56 ... Groove.

Claims (6)

A bilge discharging device (1, 31) for discharging the bilge (3) accumulated on the bottom of the ship to the outside of the hull (2, 32),
It has a pipe line (5) that passes through a position higher than the floodline (4) and communicates with the outside of the hull (2, 32) at a position lower than the floodline (4).
The pipe (5) has one end of the suction pipe (7) whose one end serves as a bilge suction port (6) and one end serves as a bilge discharge port (9, 41). ) Is connected to the other end of the discharge pipe (8, 34) fixed to the
The hull (2, 32) has a fluid storage tank (43) capable of storing a fluid at least up to the height of the floodline (4), and one end of the discharge pipe (34) is connected to the fluid storage tank (43). Fixed to the hull (2, 32) within,
The other end of the suction pipe (7) is provided with a suction valve (16) that opens only on the opposite side of the suction port (6), and the other end of the discharge pipe (8) has the discharge port. A discharge valve (19) that opens only on the (9, 41) side,
When the hull (2, 32) propels with one end of the suction pipe (7) immersed in the bilge (3), a negative pressure is generated in the pipe from one end of the discharge pipe (8, 34). The bilge (3) is sucked into the suction pipe (7) from the suction port (6), passes through the suction valve (16) and the discharge valve (19), and enters the discharge pipe (8, 34). A bilge discharge device for discharging from the discharge port (9, 41) to the outside of the hull (2, 32).   The bilge discharging apparatus according to claim 1, further comprising a pump (12) communicating with the other end of the suction pipe (7) and sucking up the bilge (3).   The bilge discharge device according to claim 1 or 2, wherein the conduit (5) is fixed to the hull with the discharge port (9, 41) facing the stern side. .   The bilge discharging apparatus according to any one of claims 1 to 3, wherein the pipe (5) has a diameter on the discharge port (9, 41) side larger than a diameter on the suction port (6) side. Bilge discharge device to do.   The bilge discharging apparatus according to any one of claims 1 to 4, wherein the discharge port (9, 41) is fixed to the hull (2, 32) in a detachable state.   6. The bilge discharging apparatus according to claim 5, wherein a spiral groove (52) is provided at one end of the discharge pipe (34) on an inner peripheral surface or an outer peripheral surface thereof, and a helical groove (53) meshing with the spiral groove (53) is provided. A bilge discharging device, wherein the bilge discharging device is fixed to the hull (2) by a connecting member (40).

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