JPH0120986Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an air dispersion device that supplies air into water.

``Prior Art'' As shown in FIG. 6, the conventional air dispersion device 30 uses carbon rods or sand that are hardened with glue and then baked and solidified through heat treatment. Since it is a fixed type, it cannot be bent into any shape, and its only function is to supply air into the water.

Furthermore, since this type of air dispersion device is used underwater, dirt adheres to each small hole over time, clogging it and reducing the amount of air supplied, so the air dispersion device must be cleaned regularly. It didn't happen. However, when the surface of the dispersion pipe is rubbed for cleaning in order to remove dirt from the air dispersion device 30, there is a drawback that carbon and sand fall off little by little. Furthermore, since the air dispersion device 30 is of a fixed type, it hardly expands even when compressed air is supplied or it is placed in hot water, so each small hole (not shown) of the dispersion pipe does not change at all. I couldn't clear the blockage.

``Problems that the invention aims to solve'' Conventional air dispersion devices are of a fixed type as shown in Figure 6, so the shape does not change, and it is impossible to solve the problem if the small holes become clogged with water scale. In view of this, it is possible to easily eliminate clogging and to freely transform the air dispersion device.

"Means for Solving the Problems" The structure of the present invention is to provide a large number of small holes in the wall surface in a mesh pattern, as well as provide through holes in the axial direction, and stop one end of the flexible and thermally expandable cylinder. A flexible core material that is closed with a stopper, has a passage for air supply, and is bendable and also serves as a weight is loosely inserted into the through hole of the cylinder, and the hose attachment part is connected to the other end of the cylinder. It is characterized by

``Operation'' The cylinder is flexible and has thermal expansion properties, so when heated, it expands and enlarges the small hole, thereby eliminating clogging. Since it includes a bendable flexible core material, the cylinder can maintain its deformed state.

"Example" An example of the present invention will be described based on the drawings.
1 is a cylindrical body made of a porous material such as special synthetic rubber, which has a large number of small holes (not shown) in a mesh pattern throughout, and is flexible and thermally expandable. A through hole 3 is provided therethrough.

Reference numeral 4 denotes a stopper that is inserted into one end of the through hole of the cylindrical body 1 to close it, and it may be inserted removably or may be fixed with an adhesive or the like. Reference numeral 5 denotes a hose attachment part that is inserted into the other end of the through hole 3 in the cylinder 1, and inside the through hole 3 there is a material that is heavy, such as lead, and can be bent into any shape, and remains as it is when bent. A flexible core material 6 made of a material that can maintain the following properties is loosely inserted. The flexible core material 6 is formed to have a smaller diameter than the inner diameter of the through hole 3 so that an air supply passage 7 can be provided between the flexible core material 6 and the inner surface of the through hole 3. Moreover, the flexible core material 6 has the role of a weight that prevents the cylindrical body 1 from floating.

Note that when this device is used in seawater, the outer periphery of the flexible core material 6 may be coated with resin or the like 6.

Next, to explain the operation of this embodiment, one end of the hose 10 connected to the hose attachment part 5 is connected to a compressor (not shown) or an oxygen cylinder (not shown), and the cylinder body 1 is placed inside the water tank 11. to be installed. In this case, as shown in FIG. 3, the cylinder 1 may be stretched straight to create a linear air curtain underwater, or as shown in FIG. It is also possible to make Furthermore, the cylindrical body 1 can be curved and installed to avoid obstacles 12 such as rocks installed in the water tank 11.

If dirt adheres to the surface of the cylinder 1 over time and the small holes become clogged, even if you rub the surface of the many small holes provided on the entire wall of the cylinder 1 for cleaning, the cylinder will not work. Since it is made of special synthetic rubber, the surface will not peel off. In addition, if many small holes are clogged, if each small hole is enlarged by soaking the cylinder 1 in hot water and causing thermal expansion, the dust and foreign matter clogging the small holes will be removed naturally. Or, by pressurizing air into the through hole 3 from the hose attachment part 5 attached to one end of the cylinder 1, dust and foreign matter clogging the small hole can be easily discharged with air. It is.

Since the entire wall surface of this cylinder 1 is provided with a large number of small holes in a mesh pattern, the number of bubbles ejected from each small hole is large and small, so that air can be efficiently supplied into the water. I can do it.

The cylinder 1 can be easily cut with a cutter (not shown), and the flexible core material 6 can also be cut with pliers, etc., so the length of the cylinder can be easily adjusted or bent by hand. It can also be curved.

"Effect of ideas" The present invention has the following effects.

The cylindrical body, which has a large number of small holes arranged in a network over the entire wall surface, is flexible and can be freely curved, so that the shape of the aeration that occurs in the aquarium can be designed in various ways.

Since a large number of small holes are provided in a mesh pattern on the wall of the cylinder, the aeration that is ejected into the water from each small hole is small and contains many air bubbles, making it possible to efficiently supply air into the water. I can do it.

Even if the small holes become clogged, the cylindrical body can be soaked in hot water.
By blowing air into the through holes of the cylindrical body in a state where each small hole is enlarged by thermal expansion, foreign matter in the small holes can be easily discharged to the outside of the cylindrical body.

A flexible core material that also serves as a weight is housed in the through hole of the cylinder, so the cylinder will not float up, and since the cylinder is made of a flexible material, it will not fall and collide with the water tank. However, the tank will not be damaged.

Since aerations designed in various shapes can be generated in the aquarium, it is fun to watch fish and aerations of arbitrary shapes.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially omitted overall sectional view, and FIG. 2 is a cross-sectional view of FIG.
An enlarged sectional view taken along line A, FIGS. 3, 4, and 5 are explanatory views showing usage examples in which the shape of the cylindrical body is changed, and FIG. 6 is a side view showing a conventional example. 1... Cylindrical body, 3... Through hole, 4... Stopper, 5...
Hose attachment part, 6... flexible core material, 7... passage.

Claims (1)

[Scope of utility model registration request] A large number of small holes are provided in the wall surface in a mesh pattern, and a through hole is provided in the axial direction.One end of the flexible and thermally expandable cylinder is closed with a stopper, and a passage for air supply is provided to prevent the weight. An air dispersion device in which a bendable flexible core material is loosely inserted into a through hole of a cylindrical body, and a hose attachment part is connected to the other end of the cylindrical body.