JPH0567596U - Bottom protection tank - Google Patents

Abstract

(57) [Summary] [Purpose] A small vessel can be housed in a vessel bottom protection tank and salt can be added to the tank to increase the salt concentration and prevent oysters and seaweeds from being generated, but it is difficult to house the vessel. Therefore, it is a device that facilitates accommodation. [Structure] An inlet / outlet port was installed above the waterline of the ship bottom protection tank. This device facilitates ups and downs, and makes it easy to accommodate ships.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

This invention is a device for protecting the bottom of a small boat.

[Prior Art]

When oysters and seaweed adhere to the bottom of the ship, the boat's running (speed) slows down. In order to solve this problem, the toxicity of ship bottom paint was conventionally used to prevent this, but the toxicity is pollution. Moreover, it takes a lot of effort to paint the bottom of the ship. It is housed in a vessel bottom protection tank there, and in order to prevent oysters and seaweed from adhering to it, it is designed so that the vessel can be easily housed in the vessel bottom protection tank. Hereinafter, the ship bottom protection tank is referred to as the protection tank.

[Problems to be solved by the device]

If there is seawater between the vessel housed in the protection tank and the protection tank, oysters and seaweed are generated in the protection tank. The problem is solved by adding salt to the protection tank, which increases the salt concentration. However, it was difficult to store it in the protective tank, so we designed it so that it could be stored easily.

[Means for Solving the Problems]

A water inlet / outlet port is installed above the water line of the protection tank to facilitate the ups and downs of the protection tank. In addition, the stern float 6 is provided to prevent it from sinking too much. The siphon 4 is installed to drain the seawater remaining between the waterline and the inlet / outlet port. When entering, the siphon first enters the siphon and the protection tank sinks.

[Work]

At the time of departure, if weight is applied around the stern float, water begins to enter from the siphon and also enters from the water inlet / outlet drainage port, and the protective tank sinks to the stern float fixed position, making it easy to leave the vessel. At the time of storage, if the ship enters the bow float and the stern float is pulled up, the water is drained from the water inlet / outlet port, and the seawater between the water inlet / outlet port and the draft line is drained by a siphon.

【Example】

At the time of departure, the protection tank attached to the vessel is unraveled, weight is applied to the stern float, water enters from the siphon and the inlet / outlet drainage port, sinks to the stern float fixed position, and the vessel is easy to leave. At the time of storage, if the vessel enters the bow float and the stern float is pulled up, the water is drained from the water inlet / outlet, and the seawater between the water inlet / outlet and the draft line is drained by a siphon. The protective tank is attached to the ship. In case of bad weather, rainwater and seawater enter the protection tank, but they are all drained and do not sink.

【The invention's effect】

 As described above, since the present invention is the one described above, the following effects can be expected. a Protective tank can be easily set up and down, so it is easy to depart and store. b No toxic substances prevent the generation of oysters and seaweeds, so no pollution occurs. c It does not sink in rainwater or seawater because it can be drained even in bad weather. oysters and seaweed adhere to the outside of the protection tank, but it is only necessary to dry the insects in the sun once a year. e Since the bottom paint is not used, it is easy and easy to add salt into the protective tank in order to increase the salt concentration and prevent the generation of oysters and seaweed. Alternatively, lime may be used.

[Brief description of drawings]

FIG. 1 is a view of a small vessel housed in a vessel bottom protection tank as viewed from above.

FIG. 2 is a side view.

FIG. 3 is a diagram in which the ship bottom protection tank is submerged.

[Explanation of symbols]

1 ... Ship bottom protection tank 2 ... Draft line 3 ... Water inlet / outlet port 4 ... Siphon 5 ... Bow float 6 ... Stern float 7 ... Small boat 8 ... Lime or salt

Claims (1)

[Scope of utility model registration request] 1. A ship bottom protection tank, characterized in that, in a ship bottom protection tank 1 for accommodating a small ship 7 moored, a water inlet / outlet port 3 is installed above a water line 2 of the ship bottom protection tank.