JP2753273B2 - Floating boat stand - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a floating dock used mainly for small boats.

[Conventional technology]

2. Description of the Related Art Conventionally, a structure such as that disclosed in Japanese Utility Model Laid-Open No. 55-55495 has been known as a floating dock. This is composed of a pair of left and right cylindrical tanks forming a floating body, and a connecting member connecting them to form a stool, and each of the cylindrical tanks is provided with a water supply / drain valve. The water supply / drain valve is used to supply / discharge water in the tank so that the floating dock is raised and lowered.

[Problems to be solved by the invention]

In the above configuration, the amount of ups and downs of the floating cradle (the amount of vertical movement) corresponds to the amount of water supply and drainage by the water supply and drainage valves. A large amount of drainage was required by the pump before the float was lifted so that it would be located at a location, and the work time was extremely long. Further, in order to shorten the operation time, there is a disadvantage that a large-capacity pump is required and equipment cost is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional drawback. By supplying a small amount of water using a water supply / drainage valve, a floating pedestal can be raised (moved up and down) by a predetermined amount. Accordingly, it is an object of the present invention to provide a floating boat cradle which can shorten the working time with relatively inexpensive equipment.

[Means for solving the problem]

A first gist of the present invention consists of tanks arranged on both left and right sides and a connecting member for connecting the two tanks, and the connecting member constitutes a gantry, and each of the tanks is arranged in a vertical direction from below. The first floating chamber is divided into three layers of a first floating chamber, a third floating chamber, and a fourth floating chamber, and the first floating chamber is provided with a water supply / drainage pump for supplying / discharging water therein and an air vent pipe,
In the third floating chamber, an air vent pipe is opened in the upper part, and a pipe communicating with the outside of the bottom of the tank is opened in the lower part. When the first floating chamber is full, the water line of the tank rises in the third floating chamber. The water line of the tank is located near the upper end of the chamber and the water line of the tank is located near the lower end of the third floating chamber when most of the water in the first floating chamber is discharged.

A second gist of the present invention consists of tanks arranged on both left and right sides and a connecting member for connecting the two tanks, and the connecting member constitutes a gantry. The first floating chamber is divided into four layers of a first floating chamber, a second floating chamber, a third floating chamber, and a fourth floating chamber. The first floating chamber is provided with a water supply / drainage pump for supplying / discharging water therein and an air vent pipe. A second floating chamber is formed in a closed space, an air vent pipe is opened in an upper part and a pipe communicating with the outside of the bottom of the tank is opened in a lower part of the third floating chamber. When the floating chamber is full, the water line of the tank is located near the upper end of the third floating chamber, and when most of the water in the first floating chamber has been drained, the water line of the tank is in the third floating chamber. It is configured to be located near the lower end.

A power supply battery for the water supply / drain pump may be housed in the fourth floating chamber, and a power switch may be provided on the fourth floating chamber. A solar system for supplying power to the power supply battery may be provided on the fourth floating chamber. Further, the air vent pipe is preferably provided with a shutoff valve.

[Action]

In the above configuration, the lowermost first floating chamber for supplying and draining water by the water supply and drainage pump, and the third floating chamber formed on the upper side of the first floating chamber for naturally supplying and discharging water by floating and sinking of the floating boat stand, A small amount of water is supplied and drained so that a quick floating and sinking is performed.

〔Example〕

In FIGS. 1 and 2, tanks 1 constituting a floating body are arranged on both left and right sides, and both tanks 1 are connected to each other by connecting members 3 at two places in front and back, and these form a floating boat stand. Although FIG. 1 shows only one side, the other side is also configured symmetrically. The connecting member 3 is a main member 37 and a vertical member connected to both ends thereof.
30 and the oblique members 31, 3 connecting the main member 37 and the vertical member 30
And 2. A receiving member 35 is attached to the main member 37, and a receiving member 39 is attached to the diagonal member 31 via a bracket 33. The receiving member 39 rotates around the axis 34 to follow the inclination of the bottom of the ship 10. Like that. The dock is constituted by these connecting members.

The tank 1 is connected to the upper and lower ends of the vertical member 30 via angle members 36.

Each of the tanks 1 has a main body 2 formed in a rectangular shape, and the main body 2 is vertically arranged from below in a first floating chamber 7, a second floating chamber 6, a third floating chamber 5, and a fourth floating chamber. The first partition 23, the second partition 22 and the third partition 21 are divided into four layers of four, respectively. A water supply / drainage pump 70 for supplying / discharging water inside the first floating chamber 7 is arranged, and its suction port 71 is opened at the bottom of the tank 1. Further, an air vent pipe 87 opens into the first floating chamber 7, and this pipe 87 is connected to the second floating chamber 6,
The third floating chamber 5 and the fourth floating chamber 4 penetrate and project to the upper piece of the tank 1 and are connected to a common air vent pipe 88 thereabove. I have. The water supply / drain pump 70 may be provided in an appropriate number in the length direction (front-back direction) of the tank body 2.

A second floating chamber 6 composed of a closed space is formed above the first floating chamber 7, and a third floating chamber 5 is further formed above the second floating chamber 6. A water supply / drainage pipe 81 opens at the lower part of the third floating chamber 5, and this water supply / drainage pipe 81 opens at the bottom of the tank 1. An air release pipe 85 is provided above the third floating chamber 5.
The upper end of the air vent pipe 85 is connected to the common air vent pipe 88.

A power supply battery 40 for the water supply / drain pump 70 is accommodated in the fourth floating chamber 4, and a power switch 43 thereof is provided on the fourth floating chamber 4. In addition, a solar system 42 that supplies power to the power supply battery 40 is provided on the fourth floating chamber 4. Reference numeral 41 denotes a power cord for the water supply / drain pump 70. The power supply for the water supply / drain pump 70 is not limited to this, and a known power supply unit may be used.

As shown in FIG. 2, the tank 1 is formed in a rectangular cylindrical shape elongated in the front-rear direction. For example, the tank 110 on the rear side of the partition 11 and the tank 120 on the front side of the partition 12 are formed independently of each other. A floating body may be constituted by a pair of left and right tanks 110 and 120, respectively.

In the above-described configuration, when the floating dock is in a lowered state, as shown in FIGS. 1 and 3, the water line 9 is located corresponding to the fourth floating chamber 4, and the first floating chamber 7 and the third floating chamber 7 are disposed. The chamber 5 is filled with water, and the entire buoyancy of the second floating chamber 6 and the fourth floating chamber 4
The tank 1 is floating due to a part of the buoyancy. In this state, the ship 10 for maintenance and inspection can be moved onto the stool.

Next, the shutoff valve 8 is opened, and the power switch 43 is opened.
Is operated to drive the water supply / drain pump 70 to discharge water in the first floating chamber 7 through the opening 71 and to suck in air through the air vent pipe 87. Thereby, buoyancy is generated in the first floating chamber 7, and the tank 1 is raised in accordance with the amount. When the water surface falls below the third partition 21 due to the rise, the water in the third floating chamber 5 is discharged through the water supply / drain pipe 81 and the air is discharged into the third floating chamber 5 through the air vent pipes 88 and 85. Supplied. As a result, the weight of the tank 1 is reduced, so that the floating of the tank 1 is promoted, and the state shown in FIGS.
Is continued below the second partition 22.

In this state, all the water in the first floating chamber 7 and the third floating chamber 5 has been discharged, but in the case where the tank 1 is floated by a predetermined amount before all the water is discharged. Alternatively, a certain amount of water may be left in the first floating chamber 7 and the third floating chamber 5 by closing the shutoff valve 8 when a predetermined amount of floating is performed.

The introduction of water into the first floating chamber 7 is performed by a water supply / drain pump 70.
Therefore, it is also possible to leave an air layer above the first floating chamber 7, and therefore, if the air layer can serve as the second floating chamber 6, the second floating chamber 6 can be used. The floating chamber 6 does not necessarily have to be formed.

In order to lower the tank 1 from the floating state (the state shown in FIG. 4), the shutoff valve 8 is opened so that the air in the first floating chamber 7 and the third floating chamber 5 is discharged, The water supply / drain pump 70 is driven to supply water into the first floating chamber 7. As a result, the weight of the tank 1 increases (the buoyancy decreases), and the tank 1 sinks, and the water surface rises.
When the water level is higher, water is supplied from the water supply / drainage pipe 81 into the third floating chamber 5, whereby the increase in the weight of the tank 1 is promoted, and the tank 1 rapidly sinks to the sinking state shown in FIG.

As described above, by discharging the water in the first floating chamber 7 from the floating state, the water in the third floating chamber 5 is naturally discharged, and the water in the first floating chamber 7 from the squatting state to the first floating chamber 7. , It is not necessary for the pump to drain or supply all the water required for ascent or descent in order for the water to be naturally supplied into the third floating chamber 5, so that a small capacity pump The floating stand can be raised or lowered in a short time. That is, in the conventional structure, the fifth
As shown in the figure, the draft 9 in the floating state and the draft 90 in the sinking state.
It is necessary to supply and discharge water in the tank 1a in an amount corresponding to the head H with the pump H in this embodiment.
As shown in the figure, since the water corresponding to the third floating chamber 5 (head h) in the head H is naturally supplied and discharged, the amount of water supplied and discharged by the pump may be very small.

〔The invention's effect〕

As described above, the present invention divides a pair of left and right tanks constituting a gantry into a first floating chamber, a third floating chamber, and a fourth floating chamber from below in the up-down direction. Is provided with a water supply / drainage pump for supplying / discharging water therein and an air release pipe, and the third floating chamber is provided with an air release pipe and a pipe communicating with the outside of the bottom of the tank. And a third floating chamber formed above the lowermost floating chamber for performing water supply and drainage naturally by floating and sinking of the floating cradle. And the configuration of the apparatus is relatively simple.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing an embodiment of the present invention, FIG. 2 is an overall perspective view thereof, FIG. 3 is an explanatory view of a tank in a floating state, FIG. FIG. 5 is an explanatory view of a tank having a conventional structure. 1 tank 2 tank body 3 connecting member 4
... Fourth floating chamber, 5 ... third floating chamber, 6 ... second floating chamber, 7 ... first floating chamber, 8 ... shut-off valve, 9 ... floating water surface, 10 ... Ship, 40 ... Battery, 70 ... Plumbing pump, 81 ... Plumbing pipe, 85,87 ... Vent pipe, 90 ... Sinking water surface.

Claims (5)

(57) [Claims] 1. A tank arranged on both left and right sides and a connecting member for connecting the two tanks to each other to form a stool, and each of the tanks is a first floating chamber from below in a vertical direction. , A third floating chamber and a fourth floating chamber, and the first floating chamber is provided with a water supply / drain pump for supplying and discharging water therein and an air vent pipe, and the third floating chamber is provided with a third floating chamber. An air vent pipe is opened in the upper part, and a pipe communicating with the outside of the bottom of the tank is opened in the lower part.
When the first floating chamber is full, the water line of the tank is located near the upper end of the third floating chamber, and when most of the water in the first floating chamber is discharged, the water line of the tank is the third floating chamber. A floating dock which is configured to be located near a lower end of the boat. 2. A tank arranged on both left and right sides and a connecting member for connecting the two tanks to each other to form a boat base. Each of the tanks is a first floating chamber from below in the vertical direction. , A second floating chamber, a third floating chamber, and a fourth floating chamber are divided into four layers, and the first floating chamber is provided with a water supply / drainage pump for supplying / discharging water therein and an air vent pipe. The second floating chamber is formed in a closed space, the third floating chamber is provided with an air vent pipe at the upper part, and a pipe communicating with the outside of the bottom of the tank at the lower part. The first floating chamber is filled with water. In the state, the water line of the tank is located near the upper end of the third floating chamber, and when most of the water in the first floating chamber is discharged, the water line of the tank is located near the lower end of the third floating chamber. A floating boat stand characterized by being configured to: 3. The floating boat according to claim 1, wherein a power supply battery for the water supply / drain pump is accommodated in the fourth floating chamber, and a power switch is provided on the fourth floating chamber. Stand. 4. The floating boat stand according to claim 1, wherein a solar system for supplying power to the power supply battery is provided on the fourth floating chamber. 5. The floating boat stand according to claim 1, wherein said air vent pipe is provided with a shutoff valve.